NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John L. Mixer, D.D.S.

Oral and Maxillofacial Surgery (Dentist) in Muskegon, MI · enumerated 2006.

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

National Provider Identifier

1689643777

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. John L. Mixer
Credential D.D.S.
Sex Male
Practice address 1150 E Sherman Blvd, Suite 1600, Muskegon, MI, 49444
Fax (231) 733-5228
Enumeration date Mar 14, 2006
Last updated in NPPES Jan 26, 2010

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 2901011411 (MI) Primary
204E00000X Oral & Maxillofacial Surgery (D.M.D.) Allopathic & Osteopathic Physicians · License 2901011411 (MI) Secondary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
4193792 Medicaid MI -
4204519 Medicaid MI -
97 0 F1 1036 0 Other MI BLUE CROSS MEDICAL
D800376 Other MI BLUE CROSS DENTAL

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

Where does John Mixer practice?
The practice location on file with NPPES is in Muskegon, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Mixer?
The National Provider Identifier (NPI) for John Mixer is 1689643777, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-26.