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Peter A. Merkel, MD, MPH

Peter A. Merkel, MD, MPH Physician

Chief, Division of Rheumatology Professor of Medicine Professor of Epidemiology in Biostatistics and Epidemiology

Dr. Merkel is employed by Penn Medicine.

About Dr. Peter A. Merkel

Recognized by America's Top Doctors, 2014 - 2018

Recognized by Best Doctors in America - 2013 - 2018

Recognized in Philadelphia magazine's annual Top Docs issue, 2013 to 2018

Patient Satisfaction Ratings

Patient Rating Breakdown

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

Overall Ratings

Clinical Specialties


  • Rheumatology

Programs & Centers:

Board Certification:

  • Rheumatology, 1994

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Amerihealth Caritas
  • Amerihealth Caritas Medicare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Amerihealth
  • NJ Medicaid
  • NJ Medicare
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: Yale University
Residency: Hospital of the University of Pennsylvania
Fellowship: Massachusetts General Hospital


American College of Physicians, National American College of Rheumatology, National American Federation of Clinical Research, National Churg Strauss Syndrome Association, National European League Against Rheumatism (EULAR) Guidelines Committee on Classification Criteria for Vasculitis, International International Network for the Study of Systemic Vasculitides, International Member, Scleroderma Clinical Trials Consortium, National New England Rheumatism Society, Local Scleroderma Clinical Trials Consortium, National Scleroderma Foundation, New England Chapter, Local Society of General Internal Medicine, National Takayasu's Arteritis Association, National Vasculitis Foundation, National

Hospital Affiliation

Dr. Merkel is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.


Selected Publications:

Kermani TA, Sreih AG, Cuthbertson D, Carette S, Hoffman GS, Khalidi NA, Koening CL, Langford CA, McAlear CA, Monach PA, Moreland L, Pagnoux C, Seo P, Warrington KJ, Ytterberg SR, Merkel PA: "Evaluation of damage in giant cell arteritis" Rheumatology (Oxford) 57 (2): 322-328,2018.

Cornec D, Kabat BF, Mills JR, Cheu M, Hummel AM, Schroeder DR, Cascino MD, Brunetta P, Murray DL, Snyder MR, Fervenza F, Hoffman GS, Kallenberg CGM, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, St Clair EW, Stone JH, Barnidge DR, Specks U.: "Pharmacokinetics of rituximab and clinical outcomes in patients with anti-neutrophil cytoplasmic antibody associated vasculitis" Rheumatology (Oxford) : 2018.

Barra L, Borchin RL, Burroughs C, Casey GC, McAlear CA, Sreih AG, Young K, Merkel PA, Pagnoux C;: "Vasculitis Clinical Research Consortium and the Vasculitis Patient-Powered Research Network. Impact of vasculitis on employment and income." Clin Exp Rheumatol : 2018.

Robson JC, Dawson J, Cronholm PF, Milman N, Kellom KS, Ashdown S, Easley E, Farrar JT, Gebhart D, Lanier G, McAlear CA, Peck J, Luqmani RA, Shea JA, Tomasson G, Merkel PA.: "Health-related quality of life in ANCA-associated vasculitis and item generation for a disease-specific patient-reported outcome measure" Patient Relat Outcome Meas : 2018.

Rhee RL, Davis JC, Ding L, Fervenza FC, Hoffman GS, Kallenberg CGM, Langford CA, McCune WJ, Monach PA, Seo P, Spiera R, St Clair EW, Specks U, Stone JH, Merkel PA.: "The Utility of Urinalysis in Determining the Risk of Renal Relapse in ANCA-Associated Vasculitis" Clin J Am Soc Nephrol : 2018.

Aydin SZ, Direskeneli H, Merkel PA: " Assessment of Disease Activity in Largevessel Vasculitis: Results of an International Delphi Exercise" J Rheumatol 44 (12): 1928-1932,2017.

Robson JC, Dawson J, Cronholm PF, Ashdown S, Easley E, Kellom KS, Gebhart D, Lanier G, Milman N, Peck J, Luqmani RA, Shea JA, Tomasson G, Merkel PA.: "Patient perceptions of glucocorticoids in anti-neutrophil cytoplasmic antibodyassociated vasculitis." Rheumatol Int. : 2017.

Grayson PC, Alehashemi S, Bagheri AA, Civelek AC, Cupps TR, Kaplan MJ, Malayeri AA, Merkel PA, Novakovich E, Bluemke DA, Ahlman MA.: "Fluorodeoxyglucose--Positron Emission Tomography As an Imaging Biomarker in a Prospective, Longitudinal Cohort of Patients With Large Vessel Vasculitis" Rheumatol. : 2017.

Mohammad AJ, Segelmark M, Smith R, Englund M, Nilsson JÅ, Westman K, Merkel PA, Jayne DRW: "Severe Infection in Antineutrophil Cytoplasmic Antibodyassociated Vasculitis" J Rheumatol 44 (10): 1468-1475,2017.

Sreih AG, Alibaz-Oner F, Easley E, Davis T, Mumcu G, Milman N, Robson J, Direskeneli H, Merkel PA, Cronholm P.: " Health-related outcomes of importance to patients with Takayasu's arteritis" Clin Exp Rheumatol : 2017.

Academic Contact Info

Ms. Kathleen Ryan

Hospital of the University of Pennsylvania
Rheumatology Division
3400 Spruce St
5 White

Philadelphia, PA 19104
Phone: (215) 614-4401
Patient appointments: 800-789-7366 (PENN)

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