NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Great Lakes Internal Medicine, PC

Internal Medicine Physician in Muskegon, MI · enumerated 2007 · authorized official Herbert Miller, President.

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

National Provider Identifier

1235311382

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Great Lakes Internal Medicine, PC
Practice address 427 Seminole Rd, Suite 100, Muskegon, MI, 49444
Fax (231) 739-6004
Enumeration date Nov 30, 2007
Last updated in NPPES Nov 30, 2007

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Herbert Miller
Title President

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 is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Great Lakes Internal Medicine, PC?
Great Lakes Internal Medicine, PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-30.