NPI Portal NPI Lookup & Verification

Mr. Peter Vaughn Sullivan

Mr. Peter Vaughn Sullivan is a Counselor provider (Counselor) practicing in San Rafael, CA, registered in the NPPES registry with NPI 1871895870 since 2010. Practices at The Housing Authority of the County of Marin (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1871895870
Entity type Individual (Type 1)
Name Mr. Peter Vaughn Sullivan
Sex Male
Practice address San Rafael, CA, 94903
Phone 4154912566
Fax 4154722186
Enumeration date 2010-11-23
Last updated in NPPES 2015-08-25

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101Y00000X Counselor Primary
Copy-ready billing details
Provider: Peter Sullivan
NPI: 1871895870
Taxonomy: 101Y00000X (Counselor)
Address: San Rafael, CA, 94903

Other providers at this practice address

NPI Name Type Specialty Location
1902910342 Gail Mosconi Individual Clinical Social Worker San Rafael, CA
1306954110 Reed Wilson Individual Case Manager/Care Coordinator San Rafael, CA
1275642001 Hasan Aly Individual Mental Health Counselor San Rafael, CA
1770667552 Laura Wilson Individual Counselor San Rafael, CA
1306923966 Angela Struckmann Individual Mental Health Counselor San Rafael, CA
1386787588 The Housing Authority of the County of Marin Organization Case Management Agency San Rafael, CA
1598049082 Robert Smith Individual Case Manager/Care Coordinator San Rafael, CA
1184040669 Jessica Bailey Individual Counselor San Rafael, CA

Verify this record

Cross-check NPI 1871895870 against the authoritative CMS record: view Mr. Peter Vaughn Sullivan on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Peter Sullivan?
The National Provider Identifier (NPI) for Peter Sullivan is 1871895870, a Type 1 (individual) record in the CMS NPPES registry.
Where does Peter Sullivan practice?
The practice location on file with NPPES is in San Rafael, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-08-25.