Chadwick R. Johr, MD
Rheumatology Physician · Philadelphia, PA
Chadwick R. Johr, MD is a rheumatology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1134144660, issued on Jul 13, 2006. Check the license (Pennsylvania MD428938, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Chadwick R. Johr
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- MD428938 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3910 Powelton Ave, Philadelphia, PA 19104
- Phone
- (215) 662-4333
- Enumerated
- Jul 13, 2006
- Record last updated
- Apr 20, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (215) 349-8900
- Medicare enrollment
- Enrolled (PECOS I20060922000183); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 413 in Pennsylvania → Look up another NPI →
Also registered at 3910 Powelton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Allan, MDRheumatology Physician1376518233
- Agnisikha DasPsychiatry Physician1437189412
- Trina Dow, ATR, BC,LPCProfessional Counselor1073644258
- William Williams, MDRheumatology Physician1194753285
Verify Chadwick R. Johr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD428938Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% more Medicare Part D claims than the average rheumatology physician in 2024
3,672 Medicare Part D claims for 285 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 319 claims were for opioids.
Most prescribed
- Methotrexate406 claims
- Hydroxychloroquine Sulfate373 claims
- Prednisone249 claims
- Gabapentin158 claims
- Pilocarpine Hcl115 claims
- Oxycodone Hcl99 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,568.00
1 payment: consulting fee; the largest payer was E.R. Squibb & Sons, L.L.C. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chadwick R. Johr among 413 rheumatology physician records in Pennsylvania
Chadwick R. Johr, MD is one of 413 rheumatology physician records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 53% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2002 · median 2004 among the 275 with a school on file
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Pennsylvania
There are 413 rheumatology physician records in Pennsylvania.
All 413 in Pennsylvania → Every provider in Philadelphia → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- David Allan, MDPhiladelphia, PA 191041376518233
- Androniki Bili, M.D.Philadelphia, PA 191041104802719
- Belinda Birnbaum, MDPhiladelphia, PA 191041669469573
- Geo Derimanov, MDPhiladelphia, PA 191041932135407
- Jonathan Dunham, MDPhiladelphia, PA 191041376583310
- Robert Eisenberg, MDPhiladelphia, PA 191041881630911
- Benjamin Hsu, MDPhiladelphia, PA 191041487698023
- William Kelley, MDPhiladelphia, PA 191041710914700
Common questions
What is Chadwick R. Johr, MD's NPI number?
Chadwick R. Johr, MD's National Provider Identifier (NPI) is 1134144660, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chadwick R. Johr, MD located?
The NPPES record lists a practice address at 3910 Powelton Ave, Philadelphia, PA, 19104. Phone: (215) 662-4333. Providers update this record themselves, so call before visiting.
How can I verify Chadwick R. Johr, MD's license?
NPPES lists Pennsylvania license number MD428938, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chadwick R. Johr, MD prescribe under Medicare Part D?
In 2024, Chadwick R. Johr, MD had 3,672 Medicare Part D claims for 285 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Chadwick R. Johr, MD's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.