NPPES file of Aug 9, 2026

Philip Schuyler Mullenix, MD

Surgery Physician · Bethesda, MD

Philip Schuyler Mullenix, MD is a surgery physician with a practice address in Bethesda, Maryland, and NPI 1336115716, issued on Feb 27, 2006. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336115716
Name
Philip Schuyler Mullenix
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License numbers
2007-01695 NC
01055814A IN
Self-reported in NPPES; status is on the state search
Practice location
Walter Reed National Military Medical Center, Bethesda, MD 20889
Phone
(919) 806-9688
Enumerated
Feb 27, 2006
Record last updated
Apr 18, 2024
Medicaid ID
5909218 NC
Medicare enrollment
Enrolled (PECOS I20241014000021); accepts Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at Walter Reed National Military Medical Center

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Simone Bernstein, MDPsychiatry Physician1265093710
  2. Jessica Bicher, MDPhysical Medicine & Rehabilitation Physician1891103495
  3. Clayton Brittingham, DOVascular & Interventional Radiology Physician1568825248
  4. Debra Buckland-Coffey, M.D.Internal Medicine Physician1053475707
  5. Gregory Chesnut, M.D.Urology Physician1265752547
  6. Mary Collins, D.O.Obstetrics & Gynecology Physician1821446196

Verify Philip Schuyler Mullenix in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Dhhs Phs Naihs Chinle Comprehensive Health Care FacilityChinle, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Philip Schuyler Mullenix among 672 surgery physician records in Maryland

Philip Schuyler Mullenix, MD is one of 672 surgery physician records with a practice address in Maryland. 69% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 55% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2000 · median 2003 among the 385 with a school on file
  • Record last updated2024 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Maryland

There are 672 surgery physician records in Maryland.

The 8 surgery physician records with the nearest ZIP codes

  1. Mark Bowyer, MDBethesda, MD 208891851382105
  2. Annesley Copeland, M.D.Bethesda, MD 208891194728576
  3. John Denobile, M.D.Bethesda, MD 208891720049539
  4. Eric Elster, MDBethesda, MD 208891285707232
  5. Roxolana Horbowyj, M.D.Bethesda, MD 208891912071606
  6. Ashley Humphries, MDBethesda, MD 208891376616136
  7. Kenneth Kelleher, M.D., FACSBethesda, MD 208891992766588
  8. William Liston, MDBethesda, MD 208891457327330

Common questions

What is Philip Schuyler Mullenix, MD's NPI number?

Philip Schuyler Mullenix, MD's National Provider Identifier (NPI) is 1336115716, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Philip Schuyler Mullenix, MD located?

The NPPES record lists a practice address at Walter Reed National Military Medical Center, Bethesda, MD, 20889. Phone: (919) 806-9688. Providers update this record themselves, so call before visiting.

How can I verify Philip Schuyler Mullenix, MD's license?

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.