Joseph Muller, M.D.
Internal Medicine Physician · Washington, DC
Joseph Muller, M.D. is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1033505342, issued on Apr 13, 2015. Check the license (District of Columbia MD048514, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Joseph Muller
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD048514 DC
Self-reported in NPPES; status is on the state search - Practice location
- 4414 Benning RD NE, Washington, DC 20019
- Phone
- (202) 469-4699
- Enumerated
- Apr 13, 2015
- Record last updated
- Jul 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211201001558); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 901 in District of Columbia → Look up another NPI →
Also registered at 4414 Benning RD NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gisela Delgado Rosado, MDFamily Medicine Physician1154812014
- Meghan Dens, NPPediatric Registered Nurse1053033886
Verify Joseph Muller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD048514Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
413 Medicare Part D claims for 63 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium46 claims
- Amlodipine Besylate35 claims
- Lisinopril24 claims
- Fluticasone Propionate17 claims
- Diclofenac Sodium15 claims
- Ozempic14 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
- Unity Health Care Inc.Washington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Muller among 901 internal medicine physician records in District of Columbia
Joseph Muller, 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 2015, is newer than 73% of them.
- NPI issued2015 · 73% of these records are older, 23% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2015 · median 2008 among the 513 with a school on file
- Record last updated2020 · 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
- Monique Duwell, M.D.Washington, DC 200191346567898
- Hannah Jackson, M.D.Washington, DC 200191154733467
- Kavya Lingappan, M.D.Washington, DC 200191306250170
- Thomas Minior, M.D.Washington, DC 200191346209475
- Chaand Ohri, M.B.B.SWashington, DC 200191811243124
- Khalid Ebrahim, M.DWashington, DC 200201346637634
- James Elmore, M.D.Washington, DC 200181821094772
- Victor Freeman, MDWashington, DC 200181952556458
Common questions
What is Joseph Muller, M.D.'s NPI number?
Joseph Muller, M.D.'s National Provider Identifier (NPI) is 1033505342, issued on Apr 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Muller, M.D. located?
The NPPES record lists a practice address at 4414 Benning RD NE, Washington, DC, 20019. Phone: (202) 469-4699. Providers update this record themselves, so call before visiting.
How can I verify Joseph Muller, M.D.'s license?
NPPES lists District of Columbia license number MD048514, 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 Joseph Muller, M.D. prescribe under Medicare Part D?
In 2024, Joseph Muller, M.D. had 413 Medicare Part D claims for 63 beneficiaries; 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.