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Tamara J. Merchant-Mccambry, M.D.

NPI 1235183526ActiveIndividual· Colon & Rectal Surgery· San Antonio, TX

Colon & Rectal Surgery (M.D.) in San Antonio, Texas, trained at Rutgers New Jersey Medical School (class of 1999). 137 Medicare patients in 2024, $21,539 paid; nearly all of their 221 Part D prescriptions were generic (90%). Reprise Biomedical, Inc. reported $13.92 in payments in 2025, mostly food and beverage.

Overview

NPI1235183526
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 20, 2006
Last updated in NPPESMay 20, 2026
Certified by providerMay 20, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Colon & Rectal Surgery Primary208C00000XM3019TX
Surgery208600000XM3019TX

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Colorectal Surgery (Proctology) (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients137
Services billed452 across 51 procedure codes
Paid by Medicare$21,539

Part D prescriptions in 2024

Prescriptions (claims)221 · 223 30-day fills
Patients159
Total drug cost$3,616
Generic share90% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRutgers New Jersey Medical School
Graduation year1999
Medicare specialtyColorectal Surgery (Proctology)
Secondary specialtiesGeneral Surgery

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$13.92 · 1 payment from 1 company
  • 2024$197.52 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Reprise Biomedical, Inc.$13.921

What the 2025 payments were for

  • Food and Beverage$13.92 · 1 payment

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other colorectal surgeons in San Antonio

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