NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles H. May III, PH.D.

Marriage & Family Therapist in Roseville, CA · enumerated 2013.

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

National Provider Identifier

1477991222

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Charles H. May III
Credential PH.D.
Sex Male
Practice address 2140 Professional Dr, Suite 205, Roseville, CA, 95661
Phone (916) 787-8717
Fax (916) 787-5616
Enumeration date Jun 13, 2013
Last updated in NPPES Jun 13, 2013

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 9406 (CA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 Charles May?
The National Provider Identifier (NPI) for Charles May is 1477991222, a Type 1 (individual) record in the CMS NPPES registry.
Where does Charles May practice?
The practice location on file with NPPES is in Roseville, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-13.