Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Cheryl Negrin, NP

Family Nurse Practitioner in Petaluma, CA · enumerated 2007.

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

National Provider Identifier

1558577692

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Registry record

Entity type Individual (Type 1)

Name Cheryl Negrin

Credential NP

Sex Female

Practice address Petaluma, CA, 94954

Phone (707) 293-1110

Enumeration date May 15, 2007

Last updated in NPPES Jul 29, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 08618 (CA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP8618 (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

Other identifiers

Identifier	Type	State	Issuer
CMM70116G	Medicaid	CA	-
CMM70370F	Medicaid	CA	-
CMM70268F	Medicaid	CA	-
ZZR11629F	Medicaid	CA	-

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

What specialty is Cheryl Negrin?

Cheryl Negrin is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Veronique Au Emergency Medicine Physician · Petaluma, CA NPI 1255399531 Jodi Adams Emergency Medicine Physician · Petaluma, CA NPI 1962511766 Erick Miranda Emergency Medicine Physician · Petaluma, CA NPI 1669597167 Benjamin Dudley Urology Physician · Petaluma, CA NPI 1669682811 Tania Sadoun Emergency Medical Services (Emergency Medicine) Physician · Petaluma, CA NPI 1639405640 Tamar Segev Obstetrics & Gynecology Physician · Petaluma, CA NPI 1972902971 Samantha Spinner Physician Assistant · Petaluma, CA NPI 1902407679 Kelley Liao Family Medicine Physician · Petaluma, CA NPI 1053053694

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-29.