Marilyn Sponza, M.F.T.
NPI 1700923380 · Mental Health Counselor · Palo Alto, CA
Marilyn Sponza, M.F.T. is a Mental Health Counselor provider in Palo Alto, CA (NPI 1700923380).
Provider details
- NPI number
- 1700923380
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- M.F.T.
- Sex
- Female
- Sole proprietor
- Yes
- License
- M14958 (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
- 2007-01-31
- Last updated
- 2017-03-06
Frequently asked questions
- What is Marilyn Sponza's NPI number?
- Marilyn Sponza's National Provider Identifier (NPI) is 1700923380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Sponza's specialty?
- Marilyn Sponza is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Marilyn Sponza located?
- Marilyn Sponza's practice location on file with NPPES is 630 University Ave, Palo Alto, CA 94301-2019.
- What is Marilyn Sponza's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Sponza is (650) 365-2502.
- Is Marilyn Sponza's NPI active?
- Yes — Marilyn Sponza's NPI (1700923380) is active in the NPPES registry as of the last update on 2017-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.