Phillip E. Mason, MD
Critical Care Medicine (Internal Medicine) Physician · San Antonio, TX
Phillip E. Mason, MD is a critical care medicine (internal medicine) physician with a practice address in San Antonio, Texas, and NPI 1952390841, issued on Oct 14, 2005. Check the license (Texas L5039, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Phillip E. Mason
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- L5039 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4502 Medical Dr, San Antonio, TX 78229
- Phone
- (210) 358-4000
- Enumerated
- Oct 14, 2005
- Record last updated
- Jun 11, 2026
- Medicaid IDs
- 154188002 TX
2493798 OH
154188004 TX
154188003 TX - Medicare enrollment
- Enrolled (PECOS I20130501000635); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1999
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 413 in Texas → Look up another NPI →
Also registered at 4502 Medical Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aaron Abarbanell, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1245497809
- Ayham AbdelAnesthesiology Physician1467147496
- Ali Abedi, M.D.Pulmonary Disease Physician1346566312
- Jordan Abel, M.D.Infectious Disease Physician1417273301
- Aesha Aboueisha, MDHospitalist Physician1225527815
- Seena Abraham, MDFamily Medicine Physician1306338561
Verify Phillip E. Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L5039Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $661.37
7 payments; by number, the most common kind was food and beverage; the largest payer was Maquet Cardiovascular L.L.C. The 2,708 providers of this specialty with any payment received $2,958.68 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
- Community Medicine AssociatesSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Phillip E. Mason among 413 critical care medicine (internal medicine) physician records in Texas
Phillip E. Mason, MD is one of 413 critical care medicine (internal medicine) physician records with a practice address in Texas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated1999 · median 2007 among the 346 with a school on file
- Record last updated2026 · 40% 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 Texas 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 Texas
There are 413 critical care medicine (internal medicine) physician records in Texas.
All 413 in Texas → Every provider in San Antonio → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Christopher Burdick, MDSan Antonio, TX 782291396913745
- Patrick Cullinan, DOSan Antonio, TX 782291043389653
- Omar Enriquez, MDSan Antonio, TX 782291194822858
- Rachel Garvin, MDSan Antonio, TX 782291356560676
- John Hunninghake, M.D.San Antonio, TX 782291386986701
- Jeffrey Javed, MDSan Antonio, TX 782291952697179
- Holly Keyt, MDSan Antonio, TX 782291699902965
- Enrique Ortiz-Diaz, M.D.San Antonio, TX 782291275737660
Common questions
What is Phillip E. Mason, MD's NPI number?
Phillip E. Mason, MD's National Provider Identifier (NPI) is 1952390841, issued on Oct 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Phillip E. Mason, MD located?
The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 358-4000. Providers update this record themselves, so call before visiting.
How can I verify Phillip E. Mason, MD's license?
NPPES lists Texas license number L5039, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. 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.