NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael R Wollin, MD

Urology Physician in Worcester, MA · enumerated 2005 · practices at Worcester Urological Associates Inc.

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

National Provider Identifier

1750381836

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michael R Wollin
Credential MD
Sex Male
Practice address 25 Oak Avenue, Worcester, MA, 01605
Phone (508) 756-6293
Fax (508) 756-9404
Enumeration date Jul 29, 2005
Last updated in NPPES Mar 31, 2010

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 70704 (MA) 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
20211512 Medicaid MA -
3045111 Medicaid MA -

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 Michael Wollin?
Michael Wollin is registered in NPPES with the primary taxonomy of Urology 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 2010-03-31.