Michael John McMahon, M.D.
Critical Care Medicine (Internal Medicine) Physician · Bethesda, MD
Michael John McMahon, M.D. is a critical care medicine (internal medicine) physician with a practice address in Bethesda, Maryland, and NPI 1316386444, issued on Jun 21, 2013. Check the license (Maryland D0101997, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Michael John McMahon
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- D0101997 MD
MD-21028 HI
Self-reported in NPPES; status is on the state search - Practice location
- 8901 Rockville Pike, Bethesda, MD 20889
- Phone
- (301) 433-4191
- Enumerated
- Jun 21, 2013
- Record last updated
- Jan 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20250126000114); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 212 in Maryland → Look up another NPI →
Also registered at 8901 Rockville Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laleh Abdolazadeh, DDSProsthodontics1083927362
- Remsh Abdulhafedh, RRTRegistered Respiratory Therapist1508514191
- Gathi Abraham, M.D., M.P.H.Child & Adolescent Psychiatry Physician1629411368
- Keeley AdamsMilitary Health Care Provider1346183258
- Michael Adams, M.D.Anesthesiology Physician1760720171
- Oluwatoyin AdelakunPsychiatric/Mental Health Nurse Practitioner1053167270
Verify Michael John McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0101997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Johns Hopkins Community Physicians, IncLaurel, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael John McMahon among 212 critical care medicine (internal medicine) physician records in Maryland
Michael John McMahon, M.D. is one of 212 critical care medicine (internal medicine) physician records with a practice address in Maryland. 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2013 · median 2005 among the 168 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Maryland
There are 212 critical care medicine (internal medicine) physician records in Maryland.
All 212 in Maryland → Every provider in Bethesda → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Robert Browning, MDBethesda, MD 208891518931831
- Jessica Bunin, M.D.Bethesda, MD 208891689697039
- Nicholas Carlin, DOBethesda, MD 208891184284598
- Paul Clark, D.O.Bethesda, MD 208891831320431
- Ketan Mehta, DOBethesda, MD 208891184124687
- Jeffrey Mikita, MDBethesda, MD 208891912009564
- Steven Stoffel, DOBethesda, MD 208891013541291
- Joshua Tunnage, D.O.Bethesda, MD 208891851754295
Common questions
What is Michael John McMahon, M.D.'s NPI number?
Michael John McMahon, M.D.'s National Provider Identifier (NPI) is 1316386444, issued on Jun 21, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Michael John McMahon, M.D. located?
The NPPES record lists a practice address at 8901 Rockville Pike, Bethesda, MD, 20889. Phone: (301) 433-4191. Providers update this record themselves, so call before visiting.
How can I verify Michael John McMahon, M.D.'s license?
NPPES lists Maryland license number D0101997, 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.
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.