Nancy Lewis, MFT
NPI 1518980333 · Mental Health Counselor · San Francisco, CA
Nancy Lewis, MFT is a Mental Health Counselor provider in San Francisco, CA (NPI 1518980333).
Provider details
- NPI number
- 1518980333
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- MFC 21604 (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
- 2006-07-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Nancy Lewis's NPI number?
- Nancy Lewis's National Provider Identifier (NPI) is 1518980333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Lewis's specialty?
- Nancy Lewis is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Nancy Lewis located?
- Nancy Lewis's practice location on file with NPPES is 582 Market St Ste 417, San Francisco, CA 94104-5301.
- What is Nancy Lewis's phone number?
- The practice phone number listed in the NPPES registry for Nancy Lewis is (415) 861-6681.
- Is Nancy Lewis's NPI active?
- Yes — Nancy Lewis's NPI (1518980333) 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.