Adam J. Knudson, M.D.
Internal Medicine Physician · Washington, DC
Adam J. Knudson, M.D. is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1225455389, issued on Mar 26, 2014. Check the license (District of Columbia MD500002502, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Adam J. Knudson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD500002502 DC
MD464150 PA
Self-reported in NPPES; status is on the state search - Practice location
- 5255 Loughboro RD NW, Washington, DC 20016
- Phone
- (202) 537-4560
- Enumerated
- Mar 26, 2014
- Record last updated
- Jan 6, 2025
- Fax
- (202) 537-4006
- Medicare enrollment
- Enrolled (PECOS I20200407001322); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 901 in District of Columbia → Look up another NPI →
Also registered at 5255 Loughboro RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Adam J. Knudson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD500002502Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
14 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
Bills Medicare through one group practice
- Johns Hopkins UniversityWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam J. Knudson among 901 internal medicine physician records in District of Columbia
Adam J. Knudson, M.D. is one of 901 internal medicine physician records with a practice address in District of Columbia. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 70% of them.
- NPI issued2014 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2014 · median 2008 among the 513 with a school on file
- Record last updated2025 · 61% 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 District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
891 internal medicine physician records list a practice address in Washington
They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.
All 901 in District of Columbia → Every provider in Washington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Robert Blee, MDWashington, DC 200161730193301
- Alexander Chester, M.D.Washington, DC 200161518989821
- John Dooley, MDWashington, DC 200161467431155
- Christopher Duke, M.D.Washington, DC 200161942225396
- Helene Freeman, M.D.Washington, DC 200161952310203
- Dawnielle Kilby-Robb, MDWashington, DC 200161265544613
- Michael Lee, MDWashington, DC 200161295734234
Common questions
What is Adam J. Knudson, M.D.'s NPI number?
Adam J. Knudson, M.D.'s National Provider Identifier (NPI) is 1225455389, issued on Mar 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Adam J. Knudson, M.D. located?
The NPPES record lists a practice address at 5255 Loughboro RD NW, Washington, DC, 20016. Phone: (202) 537-4560. Providers update this record themselves, so call before visiting.
How can I verify Adam J. Knudson, M.D.'s license?
NPPES lists District of Columbia license number MD500002502, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Adam J. Knudson, M.D. prescribe under Medicare Part D?
In 2024, Adam J. Knudson, M.D. had 14 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.