Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Nasso, MD

Internal Medicine Physician in Ann Arbor, MI · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1811947146

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name William Nasso

Credential MD

Sex Male

Practice address 2755 Carpenter Rd, Suite 1s, Ann Arbor, MI, 48108

Phone (734) 975-5000

Fax (734) 975-0376

Enumeration date May 10, 2006

Last updated in NPPES Oct 23, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301041162 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
3142304	Medicaid	MI	-
700F374320	Other	MI	BCBS OF MI

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is William Nasso?

William Nasso is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-23.