Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marian Sue Diamond, FNP

Family Nurse Practitioner in Sedona, AZ · enumerated 2006.

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

National Provider Identifier

1437139474

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Registry record

Entity type Individual (Type 1)

Name Marian Sue Diamond

Credential FNP

Sex Female

Practice address 61 Bell Rock Plz, Sedona, AZ, 86351

Phone (928) 204-4999

Fax (928) 204-4990

Enumeration date Jan 17, 2006

Last updated in NPPES Mar 25, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP1345 (AZ) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
585474	Medicaid	AZ	-

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 Marian Diamond?

The National Provider Identifier (NPI) for Marian Diamond is 1437139474, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marian Diamond practice?

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

Other providers at this practice address

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John Rooney Family Medicine Physician · Sedona, AZ NPI 1972573533 Debbie Kelley Audiologist · Sedona, AZ NPI 1013136753 Terrence Montgomery Family Nurse Practitioner · Sedona, AZ NPI 1053528760 Big Park Family Practice PC Family Nurse Practitioner · Sedona, AZ NPI 1902000763 The Hearing Professionals, Inc. Hearing Aid Equipment · Sedona, AZ NPI 1417396821 Hear in Arizona LLC Audiologist-Hearing Aid Fitter · Sedona, AZ NPI 1528487014

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-25.