NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Ryan Nikkel, DO

Orthopaedic Surgery Physician in South Haven, MI · enumerated 2005.

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

National Provider Identifier

1699762336

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Mark Ryan Nikkel
Credential DO
Sex Male
Practice address 955 S Bailey Ave, South Haven, MI, 49090
Phone (269) 637-5271
Fax (269) 639-2818
Enumeration date Sep 27, 2005
Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 36100980 (IL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
1023138633 Other IL GROUP NPI NUMBER
31622992 Other IL BCBS
036-100980 Other IL STATE LICENSE NUMBER
036100980 Medicaid IL -

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 the NPI number for Mark Nikkel?
The National Provider Identifier (NPI) for Mark Nikkel is 1699762336, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Nikkel practice?
The practice location on file with NPPES is in South Haven, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.