John Martin Sharkey, MD
Rheumatology Physician · Summit, NJ
John Martin Sharkey, MD is a rheumatology physician with a practice address in Summit, New Jersey, and NPI 1477131571, issued on Mar 30, 2021. Check the license (New Jersey 25MA13095100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Martin Sharkey
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 25MA13095100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 99 Beauvoir Ave, Summit, NJ 07901
- Phone
- (908) 522-2000
- Enumerated
- Mar 30, 2021
- Record last updated
- Jul 10, 2026
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 253 in New Jersey → Look up another NPI →
Also registered at 99 Beauvoir Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Martin Sharkey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA13095100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Martin Sharkey among 253 rheumatology physician records in New Jersey
John Martin Sharkey, MD is one of 253 rheumatology physician records with a practice address in New Jersey. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2021, is newer than 97% of them.
- NPI issued2021 · 97% of these records are older, 1% newer
- In a Medicare fileNo · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2026 · 64% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in New Jersey
There are 253 rheumatology physician records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 253 in New Jersey → Every provider in Summit → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Krissy Choi, DOSummit, NJ 079011871864371
- Jeffrey Greenberg, MDSummit, NJ 079011982783981
- Neil Kramer, MDSummit, NJ 079011306808746
- Sheetal Patel, M.D.Summit, NJ 079011316258122
- Elliot Rosenstein, M.D.Summit, NJ 079011174585145
- Katherine Ruddy, MDSummit, NJ 079011447887955
- Arathi Setty, MD, MPHSummit, NJ 079011528035938
- Andrea Gaito, MDBasking Ridge, NJ 079201487781787
Common questions
What is John Martin Sharkey, MD's NPI number?
John Martin Sharkey, MD's National Provider Identifier (NPI) is 1477131571, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is John Martin Sharkey, MD located?
The NPPES record lists a practice address at 99 Beauvoir Ave, Summit, NJ, 07901. Phone: (908) 522-2000. Providers update this record themselves, so call before visiting.
How can I verify John Martin Sharkey, MD's license?
NPPES lists New Jersey license number 25MA13095100, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.