Zarema Singson, M.D.
Zarema Singson, M.D. is a Gastroenterology Physician in San Antonio, TX, registered under NPI 1003068008.
Getting there
Here is what surrounds this office in San Antonio, based on OpenStreetMap data collected Sep 3, 2026. Parking is available about 0.31 mi away. If you arrive early, there is a coffee shop 0.28 mi away.
Getting here and what is nearby
Parking 846 ft ~4 min
Parking 0.27 mi ~6 min
Coffee Starbucks 0.28 mi ~6 min
Parking 0.31 mi ~7 min
Restaurant Thai Lao Orchid 0.31 mi ~7 min
Restaurant Sonic 0.32 mi ~7 min
5510 Babcock Road, San Antonio 78240
05:00-04:30
Restaurant Babylon Bakery 0.43 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| P4383 | TX | Gastroenterology Physician primary |
This provider holds licence P4383 issued in TX. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Gastroenterology
- PAC ID
- 7416009808
- Enrollment ID
- I20130617000600
Medicare enrolment is recorded as approved under the provider type Practitioner - Gastroenterology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Gastroenterology covers
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. NUCC Health Care Provider Taxonomy, code 207RG0100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003068008 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 21, 2008 |
| Last updated | Mar 17, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
5223 HAMILTON WOLFE RD San Antonio, TX 78229 (210) 614-1234 Fax (210) 614-0952 |
| Mailing address |
8415 DATAPOINT DR STE 700 San Antonio, TX 78229 |
| Other identifiers |
321715001
· Medicaid (TX) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 6 | 8 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 6 | 7 | 0 | 0 |
Sum = 42 · next multiple of 10 = 50 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.