Graham Ellis, DO
NPI 1215556667 · Psychiatry Physician · Ventura, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Graham Ellis, DO is a Psychiatry Physician provider in Ventura, CA (NPI 1215556667).
Provider details
- NPI number
- 1215556667
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A24149 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 200 Hillmont AveVentura, CA 93003-1647Phone: (805) 652-6729
- 7400 Barlite BlvdSan Antonio, TX 78224-1308Phone: (210) 921-2000
Registry dates
- Enumerated
- 2020-04-15
- Last updated
- 2025-10-30
- Certified
- 2025-10-30
Frequently asked questions
- What is Graham Ellis's NPI number?
- Graham Ellis's National Provider Identifier (NPI) is 1215556667, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Graham Ellis's specialty?
- Graham Ellis is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Graham Ellis located?
- Graham Ellis's practice location on file with NPPES is 300 Hillmont Ave, Ventura, CA 93003-1651.
- What is Graham Ellis's phone number?
- The practice phone number listed in the NPPES registry for Graham Ellis is (310) 924-1413.
- Does Graham Ellis accept Medicare?
- Graham Ellis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Graham Ellis's NPI active?
- Yes — Graham Ellis's NPI (1215556667) is active in the NPPES registry as of the last update on 2025-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.