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Orthopedic Surgery

Namdar Kazemi Ashtiani, MD

Works at hospitals in Cincinnati, OH · Ohio

Summary

Dr. Namdar Kazemi Ashtiani, MD is an orthopedic surgeon at 4460 Red Bank Expressway, Suite 110, Cincinnati, OH 45227. Phone: (513) 791-5200. Accepts Medicare assignment. In 2024, Namdar Kazemi Ashtiani had 378 Original Medicare patients and 1,648 services. NPI 1871819888. 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: Orthopedic surgeon (Medicare lists Orthopedic Surgery)
  • Address: 4460 Red Bank Expressway, Suite 110, Cincinnati, OH 45227 · Directions (4 more locations)
  • Phone: (513) 791‑5200
  • Medicare: Accepts Medicare assignment
  • Hospital: Christ Hospital
  • Group practice: Oxford Physical Therapy and Rehabilitation (+2 more)
  • Medical school: George Washington University School Of Medicine · graduated 2009 (17 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Namdar Kazemi Ashtiani, 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 Namdar Kazemi Ashtiani accept Medicare assignment?
Yes. Medicare's clinician data says Namdar Kazemi Ashtiani 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 Namdar Kazemi Ashtiani see?
In 2024, CMS data shows 378 Original Medicare patients and 1,648 services for Namdar Kazemi Ashtiani. This counts Original Medicare only and measures volume, not quality.
What is Namdar Kazemi Ashtiani's NPI number?
1871819888. 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 Namdar Kazemi Ashtiani, 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 patients378
Services billed to Medicare1,648
Different services or procedures72
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg (J0702)311 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)282 services
  3. X-ray of shoulder, minimum of 2 views (73030)253 services
  4. Aspiration and/or injection of fluid from large joint (20610)127 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)94 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 cholesterol75%
  • High blood pressure70%
  • Arthritis66%
  • Diabetes28%
  • Anxiety27%
  • Ischemic heart disease26%

Hospitals where Namdar Kazemi Ashtiani works

Medicare's Facility Affiliation Data lists Namdar Kazemi Ashtiani 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.

  • Christ HospitalCincinnati, OH · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 360163

Practice locations

Addresses where Namdar Kazemi Ashtiani is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Namdar Kazemi Ashtiani as a member of these groups (CMS data updated October 2, 2026).

  • Oxford Physical Therapy and Rehabilitation440 clinicians in the group
  • Kentucky Rehabilitation Services, Inc.141 clinicians in the group
  • Christ Hospital Orthopedic Associates III LLC33 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Ohio →

Other orthopedic surgeons in Cincinnati

Clinicians with the same Medicare primary specialty in Cincinnati, OH — not a recommendation.

All orthopedic surgeons in Cincinnati →

Other clinicians in Oxford Physical Therapy and Rehabilitation

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

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871819888
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