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IAN HOWARD LEWIS MD
NPI 1679591093
Anesthesiology in Ann Arbor, MI

Active since July 17, 2006PECOS Enrolled
1500 EAST MEDICAL CENTER DR, 1H247 UNIVERSITY HOSPITAL, ANN ARBOR, MI 48109(734) 936-4280 Get Directions Write a Review

NPPES record last updated: December 13, 2011. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Ian Howard Lewis Md NPPES

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

IAN HOWARD LEWIS MD (NPI 1679591093) is an individual anesthesiology provider in Ann Arbor, Michigan, licensed in Michigan (4301500044) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1679591093
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameIAN HOWARD LEWISCredential: MD
Location Address1500 EAST MEDICAL CENTER DR, 1H247 UNIVERSITY HOSPITALAnn Arbor, MI 48109-5048
Mailing Address3621 S State St, 700 Kms PlaceAnn Arbor, MI 48108 · (734) 936-2047
Phone(734) 936-4280
Sole ProprietorNo
Enumeration DateJuly 17, 2006
Last NPPES UpdateDecember 13, 2011
✔ NPI 1679591093 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MI · 4301500044
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.
1500 EAST MEDICAL CENTER DR, Ann Arbor, MI 48109
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Other Identifiers 3

Medicare ID-Type Unspecified0H16010331MI
Medicaid4559246MI
Medicare UPINE35350

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ian Howard Lewis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Ian Lewis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of Michigan
Same address
Nephrology
1500 E MEDICAL CENTER DR
Ann Arbor, MI 48109
  • Reassigned Medicare billing, Michigan enrollment
  • 2,377 clinicians in this Medicare group
NPI 1003848144 (734) 936-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

NABIL ALKHOURY FALLOUH MD
Internal Medicine
1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN CTR RECP B
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5582
PAUL DEREK FERNANDES BM
Anesthesiology
1500 EAST MEDICAL CENTER DR, 1H247 UNIVERSITY HOSPITAL
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4280
AUBREY LYNN BOUCHER PA-C
Physician Assistant
1500 EAST MEDICAL CENTER DR, 2ND FLOOR TAUBMAN CENTER RECP F
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5738
DONALD LAWSON JR. NP
Nurse Practitioner
1500 EAST MEDICAL CENTER DR, 3RD FLOOR C.S. MOTT CHILDREN'S HOSPITAL RECP C
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5780
MS. ALEXIS MAE PUNCHES NP
Nurse Practitioner (Critical Care Medicine)
1500 EAST MEDICAL CENTER DR, 12TH FLOOR C.S. MOTT CHILDRENS HOSPITAL RM 525
ANN ARBOR, MI 48109
Washtenaw County (734) 764-5302
PAULA K GLOBERSON CRNA
Nurse Anesthetist, Certified Registered
1500 EAST MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 936-4280
DR. CLINTON LEOPOLD GREENSTONE MD
Internal Medicine
1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN RECP B
ANN ARBOR, MI 48109
Washtenaw County (734) 936-5582
RAYMOND J HUTCHINSON MD
Pediatrics (Pediatric Hematology-Oncology)
1500 EAST MEDICAL CENTER DR, 7TH FLOOR C.S. MOTT CHILDREN'S HOSPITAL
ANN ARBOR, MI 48109
Washtenaw County (734) 936-9814

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 Ian Lewis's NPI number?

The NPI number for Ian Lewis is 1679591093. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Ian Lewis located?

Ian Lewis practices at 1500 East Medical Center Dr 1h247 University Hospital, Ann Arbor, MI 48109. The listed phone number is (734) 936-4280.

What is Ian Lewis's specialty?

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

Is Ian Lewis enrolled in Medicare?

Yes. Ian Lewis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ian Lewis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ian Lewis reassigns Medicare benefits to Regents Of The University Of Michigan (Ann Arbor, MI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ian Lewis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ian Lewis was last updated on December 13, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.