Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maryann Simpson, N.P.

Nurse Practitioner in Folsom, CA · enumerated 2005.

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

National Provider Identifier

1548246846

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Registry record

Entity type Individual (Type 1)

Name Maryann Simpson

Credential N.P.

Sex Female

Practice address 271 Turn Pike Dr, Folsom, CA, 95630

Phone (916) 985-9200

Enumeration date Dec 19, 2005

Last updated in NPPES Nov 30, 2007

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0006886 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Maryann Simpson?

The National Provider Identifier (NPI) for Maryann Simpson is 1548246846, a Type 1 (individual) record in the CMS NPPES registry.

Where does Maryann Simpson practice?

The practice location on file with NPPES is in Folsom, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Nancy Jaeger Family Medicine Physician · Folsom, CA NPI 1518957992 Martina Randolph Family Medicine Physician · Folsom, CA NPI 1275523664 Amanda Camposagrado Internal Medicine Physician · Folsom, CA NPI 1780669945 Regents of the University of California Multi-Specialty Clinic/Center · Folsom, CA NPI 1003896648 Don Nguyen Internal Medicine Physician · Folsom, CA NPI 1356311427 Kimberly Williams Internal Medicine Physician · Folsom, CA NPI 1376517656 Soe Maw Internal Medicine Physician · Folsom, CA NPI 1215984364 Michele Limoges Nurse Practitioner · Folsom, CA NPI 1932122009

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