Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. M Ann Spillan, DO
Psychiatry Physician in Caro, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083769459
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Registry record
Entity type Individual (Type 1)
Name Dr. M Ann Spillan
Credential DO
Sex Female
Practice address 830 Allen St, Caro, MI, 48723
Phone (231) 510-3645
Enumeration date Jan 24, 2007
Last updated in NPPES Mar 12, 2020
Taxonomy & licenses
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 510101324 (MI) Secondary
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
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.
Frequently asked questions
Where does M Ann Spillan practice?
The practice location on file with NPPES is in Caro, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for M Ann Spillan?
The National Provider Identifier (NPI) for M Ann Spillan is 1083769459, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-12.