Guillaume Marriage and Family Counseling of California, P.C.
NPI 1609453828 · Marriage & Family Therapist · Sacramento, CA
Guillaume Marriage and Family Counseling of California, P.C. is a Marriage & Family Therapist organization in Sacramento, CA (NPI 1609453828).
Provider details
- NPI number
- 1609453828
- Entity type
- Organization
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Nahomie Guillaume, President(916) 992-2602
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Professional Counselor101YP2500X
Behavioral Health & Social Service Providers
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Guillaume Counseling
- Doing business as
- Guillaume Marriage and Family Counseling
Additional practice locations (1)
- 1750 Howe Ave Ste 240Sacramento, CA 95825-3359Phone: (916) 992-2620Fax: (971) 352-4229
Registry dates
- Enumerated
- 2021-03-25
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Guillaume Marriage and Family Counseling of California, P.C.'s NPI number?
- Guillaume Marriage and Family Counseling of California, P.C.'s National Provider Identifier (NPI) is 1609453828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Guillaume Marriage and Family Counseling of California, P.C.?
- Guillaume Marriage and Family Counseling of California, P.C. is classified in the NPPES registry as Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Guillaume Marriage and Family Counseling of California, P.C. located?
- Guillaume Marriage and Family Counseling of California, P.C.'s practice location on file with NPPES is 1750 Howe Ave Ste 300, Sacramento, CA 95825-3369.
- What is Guillaume Marriage and Family Counseling of California, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Guillaume Marriage and Family Counseling of California, P.C. is (916) 992-2620.
- Who is the authorized official for Guillaume Marriage and Family Counseling of California, P.C.?
- The authorized official listed on Guillaume Marriage and Family Counseling of California, P.C.'s NPPES record is Nahomie Guillaume, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Guillaume Marriage and Family Counseling of California, P.C.'s NPI active?
- Yes — Guillaume Marriage and Family Counseling of California, P.C.'s NPI (1609453828) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.