Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Michael Halphen Sr., MD

Individual provider Geriatric Medicine (Family Medicine) Physician · NPI 1639289978

John Michael Halphen Sr., MD is a Geriatric Medicine in Bellaire, Texas. Graduated from University of Texas Medical School at San Antonio in 1995, 31 years ago. Practices with UT Physicians, a 1,732-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
31
Trained at
University of Texas Medical School at San Antonio
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

6500 W Loop S Ste 200
Bellaire, TX 77401-3535
Phone: (713) 468-5150
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Family Medicine) Physician (primary) Taxonomy 207QG0300X · Licence K3583 (TX)

Record details

NPI number1639289978
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESJune 7, 2025
Certification dateJune 6, 2025
Mailing address1608 Oakdale St, Houston, TX 77004-5931

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 1995 (31 years in practice)
Group practice Ut Physicians — 1732 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare