Umar Siddiqui, DO
Hospitalist Physician · San Antonio, TX
Umar Siddiqui, DO is a hospitalist physician with a practice address in San Antonio, Texas, and NPI 1770221756, issued on May 20, 2022. Check the license (Texas V8400, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Umar Siddiqui
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- V8400 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4502 Medical Dr, San Antonio, TX 78229
- Phone
- (210) 358-3555
- Enumerated
- May 20, 2022
- Record last updated
- May 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20250512001222); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,587 in Texas → Look up another NPI →
Also registered at 4502 Medical Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jordan Abel, M.D.Infectious Disease Physician1417273301
- Aesha Aboueisha, MDHospitalist Physician1225527815
- Seena Abraham, MDFamily Medicine Physician1306338561
Verify Umar Siddiqui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license V8400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average hospitalist physician in 2024
242 Medicare Part D claims for 57 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Ozempic18 claims
- Atorvastatin Calcium16 claims
- Losartan Potassium14 claims
- Duloxetine Hcl13 claims
- Telmisartan12 claims
- Gabapentin11 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.
Bills Medicare through one group practice
- University OF Texas Health Science Center AT San AntonioSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Umar Siddiqui among 1,587 hospitalist physician records in Texas
Umar Siddiqui, DO is one of 1,587 hospitalist physician records with a practice address in Texas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 92% of them.
- NPI issued2022 · 92% of these records are older, 3% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2022 · median 2013 among the 1,298 with a school on file
- Record last updated2025 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Texas
There are 1,587 hospitalist physician records in Texas.
All 1,587 in Texas → Every provider in San Antonio → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Christine Andre, MDSan Antonio, TX 782291013928530
- Theodore Arevalo, MDSan Antonio, TX 782291922019447
- Gregory Bowling, MDSan Antonio, TX 782291275640245
- Andrea Darilek, MDSan Antonio, TX 782291053334904
- Sean Garcia, MDSan Antonio, TX 782291861509861
- Gustavo Medellin, MDSan Antonio, TX 782291871571968
- Jane O'Rorke, M.D.San Antonio, TX 782291669483541
- Raja Pathapati, M.D.San Antonio, TX 782291083669501
Common questions
What is Umar Siddiqui, DO's NPI number?
Umar Siddiqui, DO's National Provider Identifier (NPI) is 1770221756, issued on May 20, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Umar Siddiqui, DO located?
The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 358-3555. Providers update this record themselves, so call before visiting.
How can I verify Umar Siddiqui, DO's license?
NPPES lists Texas license number V8400, 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 Umar Siddiqui, DO prescribe under Medicare Part D?
In 2024, Umar Siddiqui, DO had 242 Medicare Part D claims for 57 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.