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Dr. Alison Anne Nielsen, MD

Anesthesiology Physician in Mather, CA · enumerated 2006.

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

National Provider Identifier

1265536213

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Registry record

Entity type Individual (Type 1)
Name Dr. Alison Anne Nielsen
Credential MD
Sex Female
Practice address 10535 Hospital Way, Nchcs-Anesthesiology- 120/Sac, Mather, CA, 95655
Phone (916) 843-7102
Enumeration date Sep 11, 2006
Last updated in NPPES Feb 15, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 003526 (GA) Secondary
207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A120218 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

Where does Alison Nielsen practice?
The practice location on file with NPPES is in Mather, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alison Nielsen?
The National Provider Identifier (NPI) for Alison Nielsen is 1265536213, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-15.