Marvin Omar Delgado-Guay, MD
Geriatric Medicine (Internal Medicine) Physician · Houston, TX
Marvin Omar Delgado-Guay, MD is a geriatric medicine (internal medicine) physician with a practice address in Houston, Texas, and NPI 1306008552, issued on Jun 30, 2008. Check the license (Texas M9962, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marvin Omar Delgado-Guay
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- M9962 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1515 Holcombe Blvd, Houston, TX 77030
- Phone
- (713) 792-6161
- Enumerated
- Jun 30, 2008
- Record last updated
- Jul 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid IDs
- 196366202 (MDACC) TX
196366201 TX - Medicare enrollment
- Enrolled (PECOS I20080818000557); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 256 in Texas → Look up another NPI →
Also registered at 1515 Holcombe Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Aaroe, MDNeurology Physician1902295793
- Linda Abad, PA-CPhysician Assistant1063928240
- Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
- Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
- James Abbruzzese, M.D.Medical Oncology Physician1134233224
- Karim Abdeldaem, MDEmergency Medicine Physician1558056200
Verify Marvin Omar Delgado-Guay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M9962Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
503 Medicare Part D claims for 218 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 237 claims were for opioids.
Most prescribed
- Olanzapine52 claims
- Duloxetine Hcl38 claims
- Hydromorphone Hcl38 claims
- Morphine Sulfate Er37 claims
- Oxycodone Hcl34 claims
- Methylphenidate Hcl31 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Physicians Referral ServiceHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marvin Omar Delgado-Guay among 256 geriatric medicine (internal medicine) physician records in Texas
Marvin Omar Delgado-Guay, MD is one of 256 geriatric medicine (internal medicine) physician records with a practice address in Texas. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 67% of them.
- NPI issued2008 · 67% of these records are older, 29% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1999 · median 2000 among the 143 with a school on file
- Record last updated2012 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Texas
There are 256 geriatric medicine (internal medicine) physician records in Texas.
All 256 in Texas → Every provider in Houston → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Kathryn Agarwal, M.D.Houston, TX 770301528173580
- Ursula Braun, MD, MPHHouston, TX 770301609893601
- Alexie Cintron, MDHouston, TX 770301386611051
- Glenda Coleman, M.D.Houston, TX 770301578587275
- Aimee Garcia, M.D.Houston, TX 770301104863141
- Kristen Gateno, M.D.Houston, TX 770301831201367
- Anne-Marie Hajjar, M.D.Houston, TX 770301265419832
- Syed Imam, M.D.Houston, TX 770301619071719
Common questions
What is Marvin Omar Delgado-Guay, MD's NPI number?
Marvin Omar Delgado-Guay, MD's National Provider Identifier (NPI) is 1306008552, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marvin Omar Delgado-Guay, MD located?
The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.
How can I verify Marvin Omar Delgado-Guay, MD's license?
NPPES lists Texas license number M9962, 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.
How much does Marvin Omar Delgado-Guay, MD prescribe under Medicare Part D?
In 2024, Marvin Omar Delgado-Guay, MD had 503 Medicare Part D claims for 218 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Marvin Omar Delgado-Guay, MD's MIPS final score?
The 2023 MIPS final score is 81.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.