Diana Grair, MD
NPI 1184829772 · Family Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Grair, MD is a Family Medicine Physician provider in Houston, TX (NPI 1184829772).
Provider details
- NPI number
- 1184829772
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301095546 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 29 | 12 |
| Lisinopril | 18 | — |
| Metformin Hcl | 14 | — |
| Amlodipine Besylate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 1504 Taub LoopHouston, TX 77030-1608Phone: (832) 826-1385
- 7550 Office City DrHouston, TX 77012-4115Phone: (713) 495-3776
Registry dates
- Enumerated
- 2007-06-15
- Last updated
- 2023-01-06
- Certified
- 2023-01-06
Frequently asked questions
- What is Diana Grair's NPI number?
- Diana Grair's National Provider Identifier (NPI) is 1184829772, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Grair's specialty?
- Diana Grair is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Grair located?
- Diana Grair's practice location on file with NPPES is 4349 Martin Luther King Blvd Ste 1001e, Houston, TX 77204-4115.
- What is Diana Grair's phone number?
- The practice phone number listed in the NPPES registry for Diana Grair is (713) 743-9682.
- Does Diana Grair accept Medicare?
- Diana Grair is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Grair's NPI active?
- Yes — Diana Grair's NPI (1184829772) is active in the NPPES registry as of the last update on 2023-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.