Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Marvin Lee Simmons III
Counselor in Richmond, CA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790053098
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mr. Marvin Lee Simmons III
Sex Male
Practice address 4505 Taft Ave, Richmond, CA, 94804
Phone (510) 234-1299
Enumeration date Dec 1, 2011
Last updated in NPPES Dec 1, 2011
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Marvin Simmons?
Marvin Simmons is registered in NPPES with the primary taxonomy of Counselor. 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
Browse all → Gilda Bain-Pew Clinical Social Worker · Richmond, CA NPI 1932307675 R & R Educational Homes Mental Health Counselor · Richmond, CA NPI 1639377088 R & R Educational Homes Clinical Social Worker · Richmond, CA NPI 1770782112 Emiko Avery Community Health Worker · Richmond, CA NPI 1265763221 Michael Lastra Counselor · Richmond, CA NPI 1649571746 Allen Wilson Mental Health Counselor · Richmond, CA NPI 1538463138 R and R Educational Homes Emotionally Disturbed Childrens' Residential Treatment Facility · Richmond, CA NPI 1073805602
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-01.