Mary Gillis, MFT
NPI 1548485642 · Marriage & Family Therapist · Petaluma, CA
Mary Gillis, MFT is a Marriage & Family Therapist provider in Petaluma, CA (NPI 1548485642).
Provider details
- NPI number
- 1548485642
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- Sole proprietor
- No
- License
- MFT29225 (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
- 2007-04-16
- Last updated
- 2019-08-05
Frequently asked questions
- What is Mary Gillis's NPI number?
- Mary Gillis's National Provider Identifier (NPI) is 1548485642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Gillis's specialty?
- Mary Gillis is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Mary Gillis located?
- Mary Gillis's practice location on file with NPPES is 115 Liberty St Ste 1, Petaluma, CA 94952-2320.
- What is Mary Gillis's phone number?
- The practice phone number listed in the NPPES registry for Mary Gillis is (707) 765-9021.
- Is Mary Gillis's NPI active?
- Yes — Mary Gillis's NPI (1548485642) is active in the NPPES registry as of the last update on 2019-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.