TAMARA J MERCHANT-MCCAMBRY MD PLLC
TAMARA J MERCHANT-MCCAMBRY MD PLLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1750702221, based in San Antonio, TX. It is classified under Colon & Rectal Surgery Physician.
Getting there
The practice address on file is 1162 E SONTERRA BLVD STE 210, San Antonio, TX 78258. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| M3019 | TX | Colon & Rectal Surgery Physician primary |
This provider holds licence M3019 issued in TX. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Colon & Rectal Surgery covers
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease. NUCC Health Care Provider Taxonomy, code 208C00000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1750702221 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 30, 2013 |
| Last updated | Jul 14, 2026 |
| Status | Active |
| Practice address |
1162 E SONTERRA BLVD STE 210 San Antonio, TX 78258 (210) 787-7097 Fax (210) 579-6599 |
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 | 7 | 5 | 0 | 7 | 0 | 2 | 2 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 1 | 0 | 5 | 0 | 4 | 2 | 4 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.