Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ryan Nelson Parker
Counselor in San Francisco, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598915852
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ryan Nelson Parker
Sex Female
Practice address 250 Executive Park Blvd, Suite 4900, San Francisco, CA, 94134
Phone (415) 656-0116
Fax (415) 656-0117
Enumeration date Sep 23, 2008
Last updated in NPPES Apr 14, 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 is the NPI number for Ryan Parker?
The National Provider Identifier (NPI) for Ryan Parker is 1598915852, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ryan Parker practice?
The practice location on file with NPPES is in San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Doris Naik Marriage & Family Therapist · San Francisco, CA NPI 1629146592 Todd Mangini Marriage & Family Therapist · San Francisco, CA NPI 1225195985 Alex Dillard Marriage & Family Therapist · San Francisco, CA NPI 1962530154 Sangini Sood Clinical Child & Adolescent Psychologist · San Francisco, CA NPI 1992838478 Kellee Cathey Marriage & Family Therapist · San Francisco, CA NPI 1467637355 Denise Roberson Marriage & Family Therapist · San Francisco, CA NPI 1508031584 Danielle Evans Clinical Social Worker · San Francisco, CA NPI 1326208299 Alternative Family Services, Inc. Community/Behavioral Health Agency · San Francisco, CA NPI 1356591606
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-14.