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

Marvin Omar Delgado-Guay, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1306008552

Marvin Omar Delgado-Guay, MD is an Internal Medicine in Houston, Texas. Qualified in 1999, 27 years ago. Practices with Physicians Referral Service, a 2,727-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
27
Licensed in
TX
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1515 Holcombe Blvd
Houston, TX 77030-4009
Phone: (713) 792-6161
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence M9962 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1306008552
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2008
Last updated in NPPESJuly 16, 2012

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE, HOSPICE/PALLIATIVE CARE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Physicians Referral Service — 2727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Houston