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Obstetrics/Gynecology

Rajiv J. Deenadayalu, MD

Works at hospitals in Ann Arbor, MI · Michigan

Summary

Dr. Rajiv J. Deenadayalu, MD is an OB-GYN at 4200 Whitehall Dr, Suite 330, Ann Arbor, MI 48105. Phone: (734) 434-0477. Accepts Medicare assignment. In 2024, Rajiv J. Deenadayalu had 42 Original Medicare patients and 83 services. NPI 1699743468. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 4200 Whitehall Dr, Suite 330, Ann Arbor, MI 48105 · Directions
  • Phone: (734) 434‑0477
  • Medicare: Accepts Medicare assignment
  • Hospital: Trinity Health Ann Arbor Hospital
  • Group practice: Iha Health Services Corporation
  • Medical school: University Of Cincinnati College Of Medicine · graduated 1995 (31 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Rajiv J. Deenadayalu, 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 Rajiv J. Deenadayalu accept Medicare assignment?
Yes. Medicare's clinician data says Rajiv J. Deenadayalu 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 Rajiv J. Deenadayalu see?
In 2024, CMS data shows 42 Original Medicare patients and 83 services for Rajiv J. Deenadayalu. This counts Original Medicare only and measures volume, not quality.
What is Rajiv J. Deenadayalu's NPI number?
1699743468. 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 Rajiv J. Deenadayalu, 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 patients42
Services billed to Medicare83
Different services or procedures20
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Pelvic exam (99459)19 services
  2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)14 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 pressure62%
  • High cholesterol60%
  • Arthritis50%
  • Diabetes26%

Hospitals where Rajiv J. Deenadayalu works

Medicare's Facility Affiliation Data lists Rajiv J. Deenadayalu 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 Rajiv J. Deenadayalu is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rajiv J. Deenadayalu as a member of this group (CMS data updated October 2, 2026).

  • Iha Health Services Corporation1,168 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Michigan →

Other OB-GYNs in Ann Arbor

Clinicians with the same Medicare primary specialty in Ann Arbor, MI — not a recommendation.

All OB-GYNs in Ann Arbor →

Other clinicians in Iha Health Services Corporation

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

Clinician information

CredentialMD
Medical schoolUniversity Of Cincinnati College Of Medicine
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1699743468
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