Peter A. Merkel, MD, MPH
Rheumatology Physician · Radnor, PA
Peter A. Merkel, MD, MPH is a rheumatology physician with a practice address in Radnor, Pennsylvania, and NPI 1437136173, issued on Dec 23, 2005. Check the license (Pennsylvania MD043272L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Peter A. Merkel
- Credential
- MD, MPH
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- MD043272L PA
75719 MA
Self-reported in NPPES; status is on the state search - Practice location
- 250 King OF Prussia, Radnor, PA 19087
- Phone
- (610) 902-5700
- Enumerated
- Dec 23, 2005
- Record last updated
- Feb 3, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (617) 638-5226
- Medicaid ID
- 3134431 MA
- Medicare enrollment
- Enrolled (PECOS I20120123000561); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 413 in Pennsylvania → Look up another NPI →
Verify Peter A. Merkel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD043272LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average rheumatology physician in 2024
48 Medicare Part D claims for 20 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of 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: $92,714.82
40 payments; by number, the most common kind was consulting fee; the largest payer was NS Pharma, Inc. 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).
Peter A. Merkel among 413 rheumatology physician records in Pennsylvania
Peter A. Merkel, MD, MPH 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1988 · median 2004 among the 275 with a school on file
- Record last updated2012 · 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 Radnor → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Preethi Thomas, MDRadnor, PA 190871811937857
- Bruce FreundlichVillanova, PA 190851467721555
- David Chesner, D.O.Willow Grove, PA 190901548247679
- Sarah Coleman, MDWillow Grove, PA 190901700083581
- Elana Eisner, MDWillow Grove, PA 190901881671980
- Dana Jacobs-Kosmin, MDWillow Grove, PA 190901679521272
- Suneetha Jasty, M.D.,Willow Grove, PA 190901881957090
- Dennis Jerdan, M.D.Willow Grove, PA 190901588652200
Common questions
What is Peter A. Merkel, MD, MPH's NPI number?
Peter A. Merkel, MD, MPH's National Provider Identifier (NPI) is 1437136173, issued on Dec 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Peter A. Merkel, MD, MPH located?
The NPPES record lists a practice address at 250 King OF Prussia, Radnor, PA, 19087. Phone: (610) 902-5700. Providers update this record themselves, so call before visiting.
How can I verify Peter A. Merkel, MD, MPH's license?
NPPES lists Pennsylvania license number MD043272L, 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 Peter A. Merkel, MD, MPH prescribe under Medicare Part D?
In 2024, Peter A. Merkel, MD, MPH had 48 Medicare Part D claims for 20 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Peter A. Merkel, MD, MPH'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.