Mary Roberts Derfield, MFT
NPI 1780706200 · Marriage & Family Therapist · San Francisco, CA
Mary Roberts Derfield, MFT is a Marriage & Family Therapist provider in San Francisco, CA (NPI 1780706200).
Provider details
- NPI number
- 1780706200
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- Sole proprietor
- No
- License
- LMFT132852 (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
- 2007-04-04
- Last updated
- 2024-02-16
- Certified
- 2024-02-16
Frequently asked questions
- What is Mary Roberts Derfield's NPI number?
- Mary Roberts Derfield's National Provider Identifier (NPI) is 1780706200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Roberts Derfield's specialty?
- Mary Roberts Derfield is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Mary Roberts Derfield located?
- Mary Roberts Derfield's practice location on file with NPPES is 1914 15th St, San Francisco, CA 94114-1711.
- What is Mary Roberts Derfield's phone number?
- The practice phone number listed in the NPPES registry for Mary Roberts Derfield is (415) 596-1327.
- Is Mary Roberts Derfield's NPI active?
- Yes — Mary Roberts Derfield's NPI (1780706200) is active in the NPPES registry as of the last update on 2024-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.