deviation standard (Pennsylvania) · Go Syfert
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deviation standard in Pennsylvania

53 Pennsylvania opinions name it 10 courts 1966–2026 11 in the last five years

The cases below were cited by Pennsylvania courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.

Followed or applied (20)

CaseFollowedCited
Grossman v. Barkegreen
pasuperct · 2005 · cited in 9 Pennsylvania opinions naming this issue, 2005–2024
2 sentences

2024Generally, a plaintiff in a medical negligence action must present expert testimony to establish the physician’s deviation from the standard of care “proximately caused the plaintiff’s injury.” Grossman v. Barke, 868 A.2d 561, 566-67 (Pa. Super. 2005) (citation omitted).

2024Generally, a plaintiff in a medical negligence action must present expert testimony to establish the physician’s deviation from the standard of care “proximately caused the plaintiff’s injury.” Grossman v. Barke, 868 A.2d 561, 566-67 (Pa. Super. 2005) (citation omitted).

79
Toogood v. Rogalgreen
pa · 2003 · cited in 11 Pennsylvania opinions naming this issue, 2005–2025
2 sentences

2025To carry that burden, “a medical malpractice plaintiff must present expert testimony to establish the applicable standard of care, the deviation from that standard, causation and the extent of the injury.” Id. (citation omitted).

2025Because professional negligence “encompasses matters not within the ordinary knowledge and experience of laypersons[,] a medical malpractice plaintiff must present expert testimony to establish the applicable standard of care, the deviation from that standard, causation and the extent of the injury.” Id.

611
Welsh v. Bulgergreen
pa · 1997 · cited in 3 Pennsylvania opinions naming this issue, 2000–2017
2 sentences

2017See Quinby v. Plumsteadville Family Practice, 907 A.2d 1061 , 1070-71 Pa. (2006). (explaining that, in a medical malpractice action, a plaintiff must present a medical expert to establish the applicable standard of care, the deviation from that standard, causation, and the extent of the injury); Welsh v. Bulger, 698 A.2d 581, 585-86 (Pa. 1997) (noting that a corporate negligence claim requires an expert to identify a defendant medical institution’s standard of care, and the ways in which the defendant’s departure from those standards led to the plaintiff’s injuries); Moure v. Raeuchle, 604 A.2

2000Expert testimony is not required to estab lish a deviation from the standard of care “where the matter under investigation is so simple, and the lack of skill or want of care so obvious, as to be within the range of the ordinary experience and comprehension of even nonprofessional persons.” Chandler v. Cook, 438 Pa. 447 , 451 n.1, 265 A.2d 794 , 796 n.1 (1970), quoted with approval in Welsh v. Bulger, 548 Pa. 504 , 513 n.11, 698 A.2d 581 , 585 n.11 (1997) and Matthews v. Clarion Hospital, 742 A.2d 1111, 1112 (Pa. Super. 1999).

23
Catlin v. Hamburggreen
pasuperct · 2012 · cited in 2 Pennsylvania opinions naming this issue, 2020–2020
2 sentences

2020Catlin v. Hamburg, 56 A.3d 914, 920 (Pa.Super. 2012).

2020Catlin v. Hamburg, 56 A.3d 914, 920 (Pa.Super. 2012).

22
Yee v. Robertsgreen
pasuperct · 2005 · cited in 2 Pennsylvania opinions naming this issue, 2006–2016
2 sentences

2016Yee v. Roberts, 878 A.2d 906, 912 (Pa.Super.2005) (internal quotations and citation omitted).

2006In other words, ‘ [bjecause the negligence of a physician encompasses matters not within the ordinary knowledge and experience of laypersons [,] a medical malpractice plaintiff must present expert testimony to establish the applicable standard of care, the deviation from that standard, causation and the extent of the in jury.’” Yee v. Roberts, 878 A.2d 906, 912 (Pa. Super. 2005). (emphasis added) (citation omitted) Defendants argue that Dr. Canning’s medical report and deposition fail to link the alleged failure to remove all of the adhesions from the child’s penis during the initial surgery w

22
Hoy v. Willisgreen
njsuperctappdiv · 1978 · cited in 2 Pennsylvania opinions naming this issue, 2005–2005
2 sentences

2005This necessarily involves a substantial deviation of the claim of at least one of the parents (natural or psychological). “[T]he psychological aspect of parenthood is more important in terms of the development of the child and its mental and emotional health than the coincidence of biological or natural parenthood.” Hoy v. Willis, 165 N.J.Super. 265 , 398 A.2d 109, 112 (1978) quoting Beyond the Best Interests of the Child.

2005This necessarily involves a substantial deviation of the claim of at least one of the parents (natural or psychological). “[T]he psychological aspect of parenthood is more important in terms of the development of the child and its mental and emotional health than the coincidence of biological or natural parenthood.” Hoy v. Willis, 165 N.J.Super. 265 , 398 A.2d 109, 112 (1978) quoting Beyond the Best Interests of the Child.

22
Hightower-Warren v. Silkgreen
pa · 1997 · cited in 6 Pennsylvania opinions naming this issue, 2003–2017
2 sentences

2017In other words, “[b]ecause the negligence of a physician encompasses matters not within the ordinary knowledge and experience of laypersons[,] a medical malpractice plaintiff must present expert testimony to establish the applicable standard of care, the deviation from that standard, causation and the extent of the injury.” Id.

2005In other words, “[b]eeause the negligence of a physician encompasses matters not within the ordinary knowledge and experience of laypersons[,] a medical malpractice plaintiff must present expert testimony to establish the applicable standard of care, the deviation from that standard, causation and the extent of the injury.” Id.

16
Commonwealth v. Hugginsgreen
pa · 2003 · cited in 3 Pennsylvania opinions naming this issue, 2005–2026
2 sentences

2026Our Supreme Court has emphasized, “The negligence required to merit criminal sanctions under Section 302 is certainly a heightened deviation from the standard of care applicable when civil tort liability is at issue.” Huggins, 836 A.2d at 867 .

2024The facts of this case require this Court to determine whether the Commonwealth presented a prima facie case that Appellant acted with “criminal negligence,” which is “a heightened deviation from the standard of care applicable when civil tort liability is at issue.” Huggins, 836 A.2d at 867 .

13
Hawk v. City of Pittsburgh Zoning Board of Adjustmentgreen
pacommwct · 2012 · cited in 1 Pennsylvania opinions naming this issue, 2024–2024
1 sentence

2024As the majority notes, a de minimis variance is appropriate where the variation requested is “minor and rigid compliance with the zoning ordinance is not necessary to protect public policy concerns.” Hawk v. City of Pittsburgh Zoning Bd. of Adjustment, 38 A.3d 1061, 1066 (Pa. Cmwlth. 2012).

11
Green, R., Aplt. v. Pennsylvania Hospital.green
pa · 2015 · cited in 1 Pennsylvania opinions naming this issue, 2022–2022
1 sentence

2022Hosp., 123 A.3d 310, 325 (Pa. 2015). -6- J-A26033-22 plaintiff must present expert testimony to establish the applicable standard of care, the deviation from that standard, causation and the extent of the injury.” Toogood, 824 A.2d at 1145 .3 In this case, Wilmer’s first appellate claim turns on whether her expert witness, Dr. Gopez, gave any testimony in his deposition which established the applicable standard of care for the spinal fusion procedure performed by Dr. Salkind.

11
Bloom v. DuBois Regional Medical Centergreen
pasuperct · 1991 · cited in 1 Pennsylvania opinions naming this issue, 2018–2018
1 sentence

2018More precisely, a plaintiff must establish that a defendant’s conduct grossly and flagrantly deviated from “the ordinary standard of care.” Bloom v. Dubois Regional Medical Center, 597 A.2d 671, 679 (Pa. Super. 1991).

11
Moure v. Raeuchlegreen
pa · 1992 · cited in 1 Pennsylvania opinions naming this issue, 2017–2017
1 sentence

2017See Quinby v. Plumsteadville Family Practice, 907 A.2d 1061 , 1070-71 Pa. (2006). (explaining that, in a medical malpractice action, a plaintiff must present a medical expert to establish the applicable standard of care, the deviation from that standard, causation, and the extent of the injury); Welsh v. Bulger, 698 A.2d 581, 585-86 (Pa. 1997) (noting that a corporate negligence claim requires an expert to identify a defendant medical institution’s standard of care, and the ways in which the defendant’s departure from those standards led to the plaintiff’s injuries); Moure v. Raeuchle, 604 A.2

11
Quinby v. Plumsteadville Family Practice, Inc.green
pa · 2006 · cited in 1 Pennsylvania opinions naming this issue, 2017–2017
1 sentence

2017See Quinby v. Plumsteadville Family Practice, 907 A.2d 1061 , 1070-71 Pa. (2006). (explaining that, in a medical malpractice action, a plaintiff must present a medical expert to establish the applicable standard of care, the deviation from that standard, causation, and the extent of the injury); Welsh v. Bulger, 698 A.2d 581, 585-86 (Pa. 1997) (noting that a corporate negligence claim requires an expert to identify a defendant medical institution’s standard of care, and the ways in which the defendant’s departure from those standards led to the plaintiff’s injuries); Moure v. Raeuchle, 604 A.2

11
Commonwealth v. Mourygreen
pasuperct · 2010 · cited in 1 Pennsylvania opinions naming this issue, 2014–2014
1 sentence

2014See Commonwealth v. Berry, 887 A.2d 479, 485 (Pa.Super.2005) (“issues that are not supported by citations to the record and to pertinent legal authority are waived.”); see also Commonwealth v. Reyes, 870 A.2d 894 n.3 (Pa.2000) (on appeal, courts review only claims asserted with specificity). -6- J-S60037-14 her troubled youth in sentencing her to a standard range sentence, concluding that, “in the end, the sentencing court did not find that the mitigating factors outweighed [Appellant’s] prior record score or otherwise warranted a deviation from the standard range.” See Trial Court Opinion, p.

11
Freed v. Geisinger Medical Centergreen
pa · 2009 · cited in 1 Pennsylvania opinions naming this issue, 2010–2010
2 sentences

2010See Freed v. Geisinger Medical Center, 601 Pa. 233 , 971 A.2d 1202 (2009).

2010See Freed v. Geisinger Medical Center, 601 Pa. 233 , 971 A.2d 1202 (2009).

11
Takes v. Metropolitan Edison Co.green
pasuperct · 1995 · cited in 1 Pennsylvania opinions naming this issue, 2009–2009
2 sentences

2009However, we cannot agree that the trial court’s decision to allow the testimony in question requires the grant of a new trial. *522 “Evidentiary rulings are committed to the sound discretion of the trial court, and will not be overruled absent an abuse of discretion or error of law.” Takes v. Metropolitan Edison Co., 440 Pa.Super. 101 , 655 A.2d 138, 145 (1995) (en banc), reversed in part on other grounds, 548 Pa. 92 , 695 A.2d 397 (1997).

2009However, we cannot agree that the trial court’s decision to allow the testimony in question requires the grant of a new trial. *522 “Evidentiary rulings are committed to the sound discretion of the trial court, and will not be overruled absent an abuse of discretion or error of law.” Takes v. Metropolitan Edison Co., 440 Pa.Super. 101 , 655 A.2d 138, 145 (1995) (en banc), reversed in part on other grounds, 548 Pa. 92 , 695 A.2d 397 (1997).

11
Stalsitz v. Allentown Hospitalgreen
pasuperct · 2002 · cited in 1 Pennsylvania opinions naming this issue, 2009–2009
1 sentence

2009Stalsitz v. Allentown Hospital, 814 A.2d 766, 779-780 (Pa.Super.2002). ¶ 28 In this case, Appellants were fully apprised of the nature of the purported deviation from the standard of care as well as the factual premise for causation.

11
Peterson v. Shreinergreen
pasuperct · 2003 · cited in 1 Pennsylvania opinions naming this issue, 2003–2003
11
Kravinsky v. Glovergreen
pasuperct · 1979 · cited in 1 Pennsylvania opinions naming this issue, 1999–1999
11
Commonwealth v. Leshergreen
pa · 1977 · cited in 1 Pennsylvania opinions naming this issue, 1982–1982
11

Distinguished, questioned or overruled (0)

CaseNegativeCited
No negative-treatment citations attached to this issue in Pennsylvania. Read the followed side critically anyway.

Also cited on this issue (24)

CaseCitedYears
Nigon, L. v. Jewell, B. green
pasuperct · 2024
2 sentences

2025Generally, a plaintiff in a medical negligence action must present expert testimony to establish the physician’s deviation from the standard of care proximately caused the plaintiff’s injury.” Id.

2024Generally, a plaintiff in a medical negligence action must present expert testimony to establish the physician’s deviation from the standard of care proximately caused the plaintiff’s injury.” Id.

22024–2025
Merlini Ex Rel. Merlini v. Gallitzin Water Authority green
pa · 2009
1 sentence

2025However, expert testimony “is not always necessary when the negligence is obvious or within a layperson’s understanding.” Merlini, 980 A.2d at 506 .

12025–2025
Hanrahan, M., Aplt. v. Bakker, J. green
pa · 2018
1 sentence

2020A trial court must “conduct a separate reasonable needs analysis in the third step of the high income guidelines by assessing the deviation factors found in Rule 1910.16–5(b), in conjunction with the income and expense statements required in such cases.” Hanrahan, supra at 976 .

12020–2020
Branch v. Jackson green
pasuperct · 1993
1 sentence

2020In Branch v. Jackson, 629 A.2d 170 (Pa. Super. 1993), this Court found with respect to high-income cases that reasonable needs are relative and may include items considered extravagant to parents whose income does -8- J-A23032-20 not allow for them.

12020–2020
Colonna v. Colonna green
pa · 2004
2 sentences

2018In Colonna v. Colonna, 855 A.2d 648 (Pa. 2004), this Court held that, “where the incomes of the parents differ significantly, … it is an abuse of discretion for the trial court to fail to consider whether deviating from the support guidelines is appropriate, even in cases where the result would be to order child support for a parent who is not the primary custodial parent.” Id. at 652 .

2018Id. [J-82-2017] - 27 economic data from standard support cases, the calculation should be supplemented by the actual economic data of the parties, as established by the expense statements, which should be considered in light of the deviation factors before a fact-finder arrives at a final support award.

12018–2018
Ball v. Minnick green
pa · 1994
1 sentence

2018Id.

12018–2018
Mascaro v. Mascaro green
pa · 2002
2 sentences

2018Mother 19Mother further argues that, albeit in the context of a high income alimony pendent lite (APL)/spousal support case, this Court has already rejected Father’s needs-based argument in Mascaro v. Mascaro, 803 A.2d 1186 (Pa. 2002). [J-82-2017] - 22 also notes that the deviation factors apply equally to both standard and high income cases, and that they serve the same purpose in all support cases: to provide for deviation where the guidelines amount “would be unjust or inappropriate in a particular case.” Mother’s Brief at 25 (quoting 23 Pa.C.S. § 4322(b)).

2018Mother 19Mother further argues that, albeit in the context of a high income alimony pendent lite (APL)/spousal support case, this Court has already rejected Father’s needs-based argument in Mascaro v. Mascaro, 803 A.2d 1186 (Pa. 2002). [J-82-2017] - 22 also notes that the deviation factors apply equally to both standard and high income cases, and that they serve the same purpose in all support cases: to provide for deviation where the guidelines amount “would be unjust or inappropriate in a particular case.” Mother’s Brief at 25 (quoting 23 Pa.C.S. § 4322(b)).

12018–2018
Brannan v. Lankenau Hospital green
pa · 1980
1 sentence

2015Id. at 291 .

12015–2015
Alison Palmer v. George P. Shultz, as Secretary of State. Marguerite Cooper v. George P. Shultz, as Secretary of State green
cadc · 1987
1 sentence

2011At oral argument, Garner cited to Palmer v. Shultz, 815 F.2d 84 (U.S.App.D.C.1987), in support of his use of statistical evidence.

12011–2011
Takes v. Metropolitan Edison Co. green
pa · 1997
2 sentences

2009However, we cannot agree that the trial court’s decision to allow the testimony in question requires the grant of a new trial. *522 “Evidentiary rulings are committed to the sound discretion of the trial court, and will not be overruled absent an abuse of discretion or error of law.” Takes v. Metropolitan Edison Co., 440 Pa.Super. 101 , 655 A.2d 138, 145 (1995) (en banc), reversed in part on other grounds, 548 Pa. 92 , 695 A.2d 397 (1997).

2009However, we cannot agree that the trial court’s decision to allow the testimony in question requires the grant of a new trial. *522 “Evidentiary rulings are committed to the sound discretion of the trial court, and will not be overruled absent an abuse of discretion or error of law.” Takes v. Metropolitan Edison Co., 440 Pa.Super. 101 , 655 A.2d 138, 145 (1995) (en banc), reversed in part on other grounds, 548 Pa. 92 , 695 A.2d 397 (1997).

12009–2009
Rodriguez v. District Court of Nevada, Clark County green
scotus · 2004
2 sentences

2005"The negligence required to merit criminal sanctions under Section 302 is certainly a heightened deviation from the standard of care applicable when civil tort liability is at issue, and it may indeed be convenient to refer to this heightened level of conduct as `criminal negligence,' even though the Code does not employ that terminology." Commonwealth v. Huggins, 575 Pa. 395, 404 , 836 A.2d 862, 867 (2003), cert. denied, 541 U.S. 1012 , 124 S.Ct. 2073 , 158 L.Ed.2d 624 (2004) (holding prima facie case of recklessness for charge of involuntary manslaughter, where defendant did more than fall a

2005“The negligence required to merit criminal sanctions under Section 302 is certainly a heightened deviation from the standard of care applicable when civil tort liability is at issue, and it may indeed be convenient to refer to this heightened level of conduct as ‘criminal negligence,’ even though the Code does not employ that terminology.” Commonwealth v. Huggins, 575 Pa. 395, 404 , 836 A.2d 862, 867 (2003), cert. denied, 541 U.S. 1012 , 124 S.Ct. 2073 , 158 L.Ed.2d 624 (2004) (holding prima facie case of recklessness for charge of involuntary manslaughter, where defendant did more than fall a

12005–2005
Freeman v. Thomas, Warden neutral
scotus · 2004
2 sentences

2005"The negligence required to merit criminal sanctions under Section 302 is certainly a heightened deviation from the standard of care applicable when civil tort liability is at issue, and it may indeed be convenient to refer to this heightened level of conduct as `criminal negligence,' even though the Code does not employ that terminology." Commonwealth v. Huggins, 575 Pa. 395, 404 , 836 A.2d 862, 867 (2003), cert. denied, 541 U.S. 1012 , 124 S.Ct. 2073 , 158 L.Ed.2d 624 (2004) (holding prima facie case of recklessness for charge of involuntary manslaughter, where defendant did more than fall a

2005“The negligence required to merit criminal sanctions under Section 302 is certainly a heightened deviation from the standard of care applicable when civil tort liability is at issue, and it may indeed be convenient to refer to this heightened level of conduct as ‘criminal negligence,’ even though the Code does not employ that terminology.” Commonwealth v. Huggins, 575 Pa. 395, 404 , 836 A.2d 862, 867 (2003), cert. denied, 541 U.S. 1012 , 124 S.Ct. 2073 , 158 L.Ed.2d 624 (2004) (holding prima facie case of recklessness for charge of involuntary manslaughter, where defendant did more than fall a

12005–2005
Gross v. Dretke, Director, Texas Department of Criminal Justice, Correctional Institutions Division neutral
scotus · 2004
12005–2005
Tischler v. Watts green
nj · 2003
2 sentences

2005See: Tischler v. Watts, 177 N.J. 243 , 827 A.2d 1036 (2003); Alan J.

2005See: Tischler v. Watts, 177 N.J. 243 , 827 A.2d 1036 (2003); Alan J.

12005–2005
Chandler v. Cook green
pa · 1970
12000–2000
Matthews v. Clarion Hospital green
pasuperct · 1999
12000–2000
Hoffman v. Brandywine Hospital green
pasuperct · 1995
11999–1999
Hoffman v. Mogil green
pasuperct · 1995
11999–1999
Hamil v. Bashline green
pa · 1978
11999–1999
Carney v. Pennsylvania Railroad green
pa · 1968
11993–1993
Standard Venetian Blind Co. v. American Empire Insurance green
pa · 1983
11987–1987
Duke & Co. v. Anderson green
pasuperct · 1980
11983–1983
Carpentertown Coal & Coke Co. v. Laird green
pa · 1948
11974–1974
Mayhew's Estate green
· 1931
11966–1966

Where else courts name it

IL 171 (1964–2026) NJ 95 (1949–2026) CT 70 (1987–2024) DC 65 (1982–2026) NY 61 (1933–2026) PA 53 (1966–2026) WA 42 (1924–2026) WV 39 (1980–2025) OH 39 (1984–2026) NE 35 (1979–2022) TX 32 (1968–2025) RI 26 (1969–2021) MS 26 (1961–2022) VA 26 (1976–2026) CA 23 (1940–2026) AL 22 (1987–2026) MI 21 (1984–2025) LA 20 (1943–2024) OR 18 (1906–2021) TN 18 (1951–2020) IN 17 (1990–2025) MD 15 (1973–2022) KS 14 (1966–2026) GA 13 (1997–2024) MO 13 (1907–2019) VT 12 (1964–2025) SC 10 (1936–2026) FL 10 (1976–1999) IA 8 (1996–2019) AZ 8 (1972–2016) AK 7 (1991–2023) NM 7 (1964–2018) CO 6 (1960–2018) ND 6 (1977–2006) UT 5 (1991–2025) WY 5 (1973–2026) KY 5 (1953–2009) MA 5 (1985–2012) AR 4 (1989–2024) MN 4 (2014–2015) MT 4 (1985–1997) DE 4 (1972–2023) HI 3 (1995–2001) NC 3 (1981–2005) WI 3 (1984–2010) SD 3 (2005–2024) ME 2 (2012–2012) OK 2 (1942–1959)

Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.

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