Tamar-Mattis, D.O., a Professional Organization
NPI 1801605035 · Family Medicine Physician · Sebastopol, CA
Tamar-Mattis, D.O., a Professional Organization is a Family Medicine Physician organization in Sebastopol, CA (NPI 1801605035).
Provider details
- NPI number
- 1801605035
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Anne Tamar-Mattis, Chief Adminsitrative Officer(707) 861-0807
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Ambulatory Health Care Facilities
- Medical Specialty Clinic/Center261QM2500X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
Other names (DBA / former)
- Doing business as
- Liminal Medicine
Registry dates
- Enumerated
- 2025-01-02
- Last updated
- 2025-01-02
- Certified
- 2024-12-23
Frequently asked questions
- What is Tamar-Mattis, D.O., a Professional Organization's NPI number?
- Tamar-Mattis, D.O., a Professional Organization's National Provider Identifier (NPI) is 1801605035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Tamar-Mattis, D.O., a Professional Organization?
- Tamar-Mattis, D.O., a Professional Organization is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tamar-Mattis, D.O., a Professional Organization located?
- Tamar-Mattis, D.O., a Professional Organization's practice location on file with NPPES is 1020 Gravenstein Hwy S Ste 120, Sebastopol, CA 95472-4863.
- What is Tamar-Mattis, D.O., a Professional Organization's phone number?
- The practice phone number listed in the NPPES registry for Tamar-Mattis, D.O., a Professional Organization is (707) 861-0807.
- Who is the authorized official for Tamar-Mattis, D.O., a Professional Organization?
- The authorized official listed on Tamar-Mattis, D.O., a Professional Organization's NPPES record is Anne Tamar-Mattis, Chief Adminsitrative Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Tamar-Mattis, D.O., a Professional Organization's NPI active?
- Yes — Tamar-Mattis, D.O., a Professional Organization's NPI (1801605035) is active in the NPPES registry as of the last update on 2025-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.