Skip to content

Allison Marie Ammann, MD

NPI 1699271585ActiveIndividual· Surgery, Surgical Oncology· Houston, TX

Surgery, Surgical Oncology (MD) in Houston, Texas, licensed in TX, with an NPI issued in April 2018. Part D covered 95 prescriptions written in 2024, 94% of them generic. Baxter Healthcare reported $87.94 in payments in 2025, mostly food and beverage.

Overview

NPI1699271585
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 1, 2018
Last updated in NPPESAug 12, 2026
Certified by providerAug 12, 2026

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Surgical Oncology (TX)

Part D prescriptions in 2024

Prescriptions (claims)95 · 105 30-day fills
Patients45
Total drug cost$4,611
Generic share94% of claims

Medicare sources and data years

Education and affiliations

Graduation year2018
Medicare specialtySurgical Oncology
Secondary specialtiesGeneral Surgery

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$87.94 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Baxter Healthcare$87.941

What the 2025 payments were for

  • Food and Beverage$87.94 · 1 payment

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

Other Surgery, Surgical Oncology providers in Houston

All Surgery, Surgical Oncology providers in Texas →