Chioma Udemgba, M.D.
Chioma Udemgba, M.D. is an Allergy & Immunology Physician in San Antonio, TX, registered under NPI 1003279399. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in San Antonio, based on OpenStreetMap data collected Sep 15, 2026. Parking is available about 0.36 mi away. A pharmacy sits 0.32 mi from the entrance (Premier Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Taco Bell 0.25 mi ~6 min
2501 Babcock Road, San Antonio 78229
08:00-01:00
Restaurant Jack in the Box 0.29 mi ~6 min
Parking Lot 17 0.32 mi ~7 min
Pharmacy Premier Pharmacy 0.32 mi ~7 min
Restaurant Sabores Cali Baja Mexican Grill 0.33 mi ~7 min
2414 Babcock Road, San Antonio 78229
11:00-20:00
Parking 0.34 mi ~7 min
Parking 0.36 mi ~8 min
Convenience 7-Eleven 0.43 mi ~9 min
Gas station Shell 0.44 mi ~9 min
2310 Babcock Road, San Antonio 78229
Hotel Fairfield Inn & Suites 0.46 mi ~10 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 |
|---|---|---|
| U8015 | TX | Allergy & Immunology Physician primary |
| 20674 | ND | Allergy & Immunology Physician |
| MD048479 | DC | Internal Medicine Physician |
| U8015 | TX | Internal Medicine Physician |
| U8015 | TX | Pediatrics Physician |
| MD048479 | DC | Pediatrics Physician |
Licences are recorded in 3 states: TX, ND, DC. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 8426340662
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| District of Columbia | I20211007001170 | Practitioner - Internal Medicine |
| Texas | I20240423001136 | Practitioner - Allergy/immunology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. There are 2 separate enrolment records across 2 states (DC, TX). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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.
Licensed in 3 states
This provider holds licences in 3 states: District of Columbia, North Dakota and Texas. The practice address on file is in San Antonio, TX, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- MD048479
- Specialty
- Internal Medicine Physician
- Licence
- U8015
- Specialty
- Allergy & Immunology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Allergy & Immunology covers
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system. NUCC Health Care Provider Taxonomy, code 207K00000X
All registered taxonomy codes
This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207K00000X | Allergy & Immunology Physician | U8015 | TX | primary |
| 207K00000X | Allergy & Immunology Physician | 20674 | ND | |
| 207R00000X | Internal Medicine Physician | MD048479 | DC | |
| 207R00000X | Internal Medicine Physician | U8015 | TX | |
| 208000000X | Pediatrics Physician | U8015 | TX | |
| 208000000X | Pediatrics Physician | MD048479 | DC | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003279399 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 4, 2016 |
| Last updated | Apr 23, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.D. |
| Practice address |
5282 MEDICAL DR STE 240 San Antonio, TX 78229 (210) 644-2100 |
| Mailing address |
1430 TULANE AVE # SL-50 New Orleans, LA 70112 |
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 | 2 | 7 | 9 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 7 | 9 | 3 | 9 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.