Sylvia Whitlock, PH.D. M.A.
NPI 1679795850 · Marriage & Family Therapist · Upland, CA
Sylvia Whitlock, PH.D. M.A. is a Marriage & Family Therapist provider in Upland, CA (NPI 1679795850).
Provider details
- NPI number
- 1679795850
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- PH.D. M.A.
- Sex
- Female
- Sole proprietor
- No
- License
- MFC37262 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2007-05-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sylvia Whitlock's NPI number?
- Sylvia Whitlock's National Provider Identifier (NPI) is 1679795850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylvia Whitlock's specialty?
- Sylvia Whitlock is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sylvia Whitlock located?
- Sylvia Whitlock's practice location on file with NPPES is 600 N Mountain Ave, Upland, CA 91786-4359.
- What is Sylvia Whitlock's phone number?
- The practice phone number listed in the NPPES registry for Sylvia Whitlock is (909) 982-6800.
- Is Sylvia Whitlock's NPI active?
- Yes — Sylvia Whitlock's NPI (1679795850) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.