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Internal Medicine

Amna T. Tanweer, DO

Works at hospitals in Des Moines, IA · Iowa

Summary

Dr. Amna T. Tanweer, DO is an internal medicine doctor at 800 E 1st St, 1700 Mercyone Ankeny Family Medicine Clinic, Ankeny, IA 50021. Phone: (515) 643-8100. Accepts Medicare assignment. In 2024, Amna T. Tanweer had 58 Original Medicare patients and 112 services. NPI 1285201566. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 800 E 1st St, 1700 Mercyone Ankeny Family Medicine Clinic, Ankeny, IA 50021 · Directions
  • Phone: (515) 643‑8100
  • Medicare: Accepts Medicare assignment
  • Hospital: MercyOne Des Moines Medical Center
  • Group practice: Mercy Clinics Inc
  • Medical school: Des Moines University Of Osteopathic Medicine And Health Sciences · graduated 2021 (5 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Amna T. Tanweer, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Amna T. Tanweer accept Medicare assignment?
Yes. Medicare's clinician data says Amna T. Tanweer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Amna T. Tanweer see?
In 2024, CMS data shows 58 Original Medicare patients and 112 services for Amna T. Tanweer. This counts Original Medicare only and measures volume, not quality.
What is Amna T. Tanweer's NPI number?
1285201566. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Amna T. Tanweer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients58
Services billed to Medicare112
Different services or procedures23
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)35 services
  2. Insertion of needle into vein for collection of blood sample (36415)23 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)14 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure66%
  • High cholesterol66%
  • Arthritis36%
  • Anxiety21%
  • Atrial fibrillation21%
  • Chronic kidney disease19%

Hospitals where Amna T. Tanweer works

Medicare's Facility Affiliation Data lists Amna T. Tanweer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Amna T. Tanweer is enrolled with Medicare (CMS data updated October 2, 2026).

  • 800 E 1st St, 1700 Mercyone Ankeny Family Medicine ClinicAnkeny, IA 50021 (515) 643‑8100

Group practices

Medicare enrollment lists Amna T. Tanweer as a member of this group (CMS data updated October 2, 2026).

  • Mercy Clinics Inc443 clinicians in the group

Specialties

Find other Internal Medicine doctors in Iowa →

Other internal medicine doctors in Ankeny

Clinicians with the same Medicare primary specialty in Ankeny, IA — not a recommendation.

All internal medicine doctors in Ankeny →

Other clinicians in Mercy Clinics Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolDes Moines University Of Osteopathic Medicine And Health Sciences
Graduation year2021 (5 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285201566
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians