Umar Siddiqui, DO
NPI 1770221756 · Hospitalist Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Umar Siddiqui, DO is a Hospitalist Physician provider in San Antonio, TX (NPI 1770221756).
Provider details
- NPI number
- 1770221756
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- V8400 (TX)
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
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Semaglutidebrand: Ozempic | 18 |
| Atorvastatin Calcium | 16 |
| Losartan Potassium | 14 |
| Duloxetine Hcl | 13 |
| Telmisartan | 12 |
| Gabapentin | 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
Registry dates
- Enumerated
- 2022-05-20
- Last updated
- 2025-05-07
- Certified
- 2025-05-07
Frequently asked questions
- What is Umar Siddiqui's NPI number?
- Umar Siddiqui's National Provider Identifier (NPI) is 1770221756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Umar Siddiqui's specialty?
- Umar Siddiqui is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Umar Siddiqui located?
- Umar Siddiqui's practice location on file with NPPES is 4502 Medical Dr, San Antonio, TX 78229-4402.
- What is Umar Siddiqui's phone number?
- The practice phone number listed in the NPPES registry for Umar Siddiqui is (210) 358-3555.
- Does Umar Siddiqui accept Medicare?
- Umar Siddiqui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Umar Siddiqui's NPI active?
- Yes — Umar Siddiqui's NPI (1770221756) is active in the NPPES registry as of the last update on 2025-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.