Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Anesthesiology

Robert J. Bettendorf Jr., MD

Works at hospitals in Ann Arbor, MI · Michigan

Summary

Dr. Robert J. Bettendorf Jr., MD is an anesthesiologist at 1500 E Medical Ctr Dr, Ann Arbor, MI 48109. Phone: (734) 936-4185. Accepts Medicare assignment. In 2024, Robert J. Bettendorf Jr. had 581 Original Medicare patients and 687 services. NPI 1043290786. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 1500 E Medical Ctr Dr, Ann Arbor, MI 48109 · Directions (4 more locations)
  • Phone: (734) 936‑4185
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Michigan Health System
  • Group practice: Regents of the University of Michigan
  • Medical school: University Of Michigan Medical School · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Robert J. Bettendorf Jr., 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 Robert J. Bettendorf Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Robert J. Bettendorf Jr. 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 Robert J. Bettendorf Jr. see?
In 2024, CMS data shows 581 Original Medicare patients and 687 services for Robert J. Bettendorf Jr.. This counts Original Medicare only and measures volume, not quality.
What is Robert J. Bettendorf Jr.'s NPI number?
1043290786. 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 Robert J. Bettendorf Jr., 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 patients581
Services billed to Medicare687
Different services or procedures9
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Anesthesia for lens surgery (00142)243 services
  2. Anesthesia for other procedure on eye (00140)236 services
  3. Anesthesia for electroshock therapy (00104)63 services
  4. Anesthesia for procedure on eyelid (00103)46 services
  5. Anesthesia for procedure on eye for corneal transplant (00144)45 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 pressure68%
  • High cholesterol65%
  • Arthritis40%
  • Diabetes26%
  • Chronic kidney disease25%
  • Ischemic heart disease24%

Hospitals where Robert J. Bettendorf Jr. works

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

Group practices

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

  • Regents of the University of Michigan3,346 clinicians in the group

Specialties

Find other Anesthesiology doctors in Michigan →

Other anesthesiologists in Ann Arbor

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

All anesthesiologists in Ann Arbor →

Other clinicians in Regents of the University of Michigan

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

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043290786
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