Chadwick R. Johr, MD

Medicare activity in 2024

Official CMS public-use data for Chadwick R. Johr, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)303 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)212 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)195 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)117 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure73%
• High cholesterol70%
• Arthritis61%
• Anxiety37%
• Chronic kidney disease33%
• Diabetes31%

Hospitals where Chadwick R. Johr works

Medicare's Facility Affiliation Data lists Chadwick R. Johr at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
• Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390111
• Penn Presbyterian Medical CenterPhiladelphia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390223
• Pennsylvania HospitalPhiladelphia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390226

Practice locations

Addresses where Chadwick R. Johr is enrolled with Medicare (CMS data updated October 2, 2026).

• 3400 Civic Ctr Blvd, Fl 1Philadelphia, PA 19104 (215) 662‑2454
• 51 N 39th StPhiladelphia, PA 19104 (215) 662‑9436

Group practices

Medicare enrollment lists Chadwick R. Johr as a member of this group (CMS data updated October 2, 2026).

• University of Penn - Medical Group3,505 clinicians in the group

Specialties

• Rheumatologyprimary
• Internal Medicinealso
• Pediatric Medicinealso

Find other Rheumatology doctors in Pennsylvania →

Other rheumatologists in Philadelphia

Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.

• Audrey B. Uknis, MD
• Philip L. Cohen, MD
• Isabel Penabad, MD
• Ian Cooley, MD
• Ethan Craig, MD
• Nayaab Bakshi
• David R. Chen, MD
• Arundathi Jayatilleke, MD

All rheumatologists in Philadelphia →

Other clinicians in University of Penn - Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Kristen R. Tahan, PA
• Annapurna Saksena, MD
• David C. Hayburn, CNA
• Venkat A. Kalapatapu, MD
• Oleg Leontiev, MD
• Erica S. Zado, PA

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians