James A. Welker, D.O.
Internal Medicine Physician · Annapolis, MD
James A. Welker, D.O. is an internal medicine physician with a practice address in Annapolis, Maryland, and NPI 1568423440, issued on Mar 30, 2006. Check the license (Maryland H0052024, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- James A. Welker
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- H0052024 MD
Self-reported in NPPES; status is on the state search - Practice location
- 621 Ridgely Ave, Annapolis, MD 21401
- Phone
- (443) 501-9300
- Enumerated
- Mar 30, 2006
- Record last updated
- Sep 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 391100400 MD
- Medicare enrollment
- Enrolled (PECOS I20220111000854); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 621 Ridgely Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James A. Welker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license H0052024Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average internal medicine physician in 2024
575 Medicare Part D claims for 174 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium33 claims
- Losartan Potassium32 claims
- Furosemide31 claims
- Spironolactone28 claims
- Clopidogrel27 claims
- Ezetimibe23 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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,536.37
9 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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
- North Mississippi Medical Center, Inc.Tupelo, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James A. Welker among 3,904 internal medicine physician records in Maryland
James A. Welker, D.O. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2003 among the 2,445 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
100 internal medicine physician records list a practice address in Annapolis
They are 100 of the 3,629 NPPES records with a practice address in Annapolis, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Annapolis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Titus Abraham, MDAnnapolis, MD 214011598764540
- Donna Chambers, MDAnnapolis, MD 214011528067642
- Aditya Chopra, MDAnnapolis, MD 214011508850991
- Michael Freedman, M.D.Annapolis, MD 214011528045606
- Joseph Friend, MDAnnapolis, MD 214011144207028
- Howard Goldstein, MDAnnapolis, MD 214011174500060
- Brian Harvey, MDAnnapolis, MD 214011285636217
- Okeowo Ibitoye, MDAnnapolis, MD 214011154322352
Common questions
What is James A. Welker, D.O.'s NPI number?
James A. Welker, D.O.'s National Provider Identifier (NPI) is 1568423440, issued on Mar 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James A. Welker, D.O. located?
The NPPES record lists a practice address at 621 Ridgely Ave, Annapolis, MD, 21401. Phone: (443) 501-9300. Providers update this record themselves, so call before visiting.
How can I verify James A. Welker, D.O.'s license?
NPPES lists Maryland license number H0052024, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James A. Welker, D.O. prescribe under Medicare Part D?
In 2024, James A. Welker, D.O. had 575 Medicare Part D claims for 174 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is James A. Welker, D.O.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. 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.