1. Home
  2. Directory
  3. Michigan
  4. Ann Arbor
  5. Anesthesiology
  6. NPI Profile

NELSON NWANNUNU MD
NPI 1124605159
Anesthesiology in Ann Arbor, MI

Active since March 25, 2021PECOS EnrolledAccepts Medicare Assignment
1500 E MEDICAL CENTER DR, ANN ARBOR, MI 48109(734) 936-4000 Get Directions Write a Review

NPPES record last updated: August 15, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Aug 15, 2025, Mar 25, 2021 (2 updates tracked since 2021).

About Nelson Nwannunu Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NELSON NWANNUNU MD (NPI 1124605159) is an individual anesthesiology provider in Ann Arbor, Michigan, licensed in Michigan (4301515145) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1124605159
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameNELSON NWANNUNUCredential: MD
Location Address1500 E MEDICAL CENTER DRAnn Arbor, MI 48109-5000
Mailing Address3621 S State StAnn Arbor, MI 48108-1633 · (734) 647-5299
Phone(734) 936-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 25, 2021
Last NPPES UpdateAugust 15, 20252 updates tracked since enumeration
NPPES CertifiedAugust 15, 2025
✔ NPI 1124605159 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MI · 4301515145
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109
Open in Google Maps ↗

Secondary Practice Location 1

Location 11740 W Taylor StChicago, IL 60612-7232 · Phone (866) 600-2273

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Priority Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nelson Nwannunu Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618379546
PECOS Enrollment IDI20251001000540
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Michigan Health System

Acute Care Hospitals · Ann Arbor, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230046
Location1500 E Medical Center Drive, Spc 5474Ann Arbor, MI 48109 · Washtenaw County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LOKMAN SUNG MD
Pathology (Forensic Pathology)
1500 E MEDICAL CENTER DR, 2ND FLOOR UNIVERSITY HOSPITAL RECP PATHOLOGY
ANN ARBOR, MI 48109
Washtenaw County (800) 862-7284
SAMEER DEV SAINI M.D.
Internal Medicine (Gastroenterology)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
KYLE DAVID PERRY MD
Pathology (Cytopathology)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
DR. DAVID ALEXANDER STEWART M.D.
Pediatrics
1500 E MEDICAL CENTER DR, 12TH FLOOR C.S. MOTT CHILDREN'S HOSPITAL ROOM 525
ANN ARBOR, MI 48109
Washtenaw County (734) 763-5302
DR. MICHAEL EDMUND WATSON MD
Pediatrics (Pediatric Infectious Diseases)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
CARRIE KRAEGER PORTER PA-C
Physician Assistant
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-6666
DENISE LYNN BERRY CRNA
Nurse Anesthetist, Certified Registered
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000
KETTI SOPHIA PETERSEN MD
Family Medicine (Hospice and Palliative Medicine)
1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nelson Nwannunu's NPI number?

The NPI number for Nelson Nwannunu is 1124605159. It was assigned to this individual provider in the NPPES registry on March 25, 2021.

Where is Nelson Nwannunu located?

Nelson Nwannunu practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.

What is Nelson Nwannunu's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Nelson Nwannunu enrolled in Medicare?

Yes. Nelson Nwannunu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Nelson Nwannunu accept?

Health plans from Priority Health list Nelson Nwannunu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nelson Nwannunu affiliated with any hospitals?

According to CMS data, Nelson Nwannunu is affiliated with University Of Michigan Health System.

When was this NPI record last updated?

The NPPES record for Nelson Nwannunu was last updated on August 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.