James Clark, MD
Rheumatology Physician · Phoenix, AZ
James Clark, MD is a rheumatology physician with a practice address in Phoenix, Arizona, and NPI 1154954758, issued on Feb 21, 2020. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Clark
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 38204 GA
128756 MT
Self-reported in NPPES; status is on the state search - Practice location
- 5333 N 7TH St Ste B112, Phoenix, AZ 85014
- Phone
- (480) 571-6761
- Enumerated
- Feb 21, 2020
- Record last updated
- Aug 5, 2024
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 117 in Arizona → Look up another NPI →
Also registered at 5333 N 7TH St Ste B112
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Slonaker, AGACNP-BCAcute Care Nurse Practitioner1740794114
Verify James Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average rheumatology physician in 2024
14 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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): 80.5 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: $169.94
3 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
James Clark among 117 rheumatology physician records in Arizona
James Clark, MD is one of 117 rheumatology physician records with a practice address in Arizona. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2024 · 40% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Arizona
There are 117 rheumatology physician records in Arizona.
All 117 in Arizona → Every provider in Phoenix → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Joanne Gurin, M.D.Phoenix, AZ 850141174581581
- Nisha Manek, M.D.Phoenix, AZ 850151437139151
- Joseph Nolan, MDPhoenix, AZ 850151720026834
- Jeanne Attrep, M.D.Phoenix, AZ 850121710078209
- William Finch, MDPhoenix, AZ 850121760456628
- Theresa Nieman, M.D.Phoenix, AZ 850121780781732
- Dipika Patel-Boolani, MDPhoenix, AZ 850161316159544
- James Posever, MDPhoenix, AZ 850161154364214
Common questions
What is James Clark, MD's NPI number?
James Clark, MD's National Provider Identifier (NPI) is 1154954758, issued on Feb 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is James Clark, MD located?
The NPPES record lists a practice address at 5333 N 7TH St Ste B112, Phoenix, AZ, 85014. Phone: (480) 571-6761. Providers update this record themselves, so call before visiting.
How can I verify James Clark, MD's license?
Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Clark, MD prescribe under Medicare Part D?
In 2024, James Clark, MD had 14 Medicare Part D claims; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is James Clark, MD's MIPS final score?
The 2023 MIPS final score is 80.5 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.