Colette Vassilian, D.O.
NPI 1104222660 · Pediatrics Physician · Alamo, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colette Vassilian, D.O. is a Pediatrics Physician provider in Alamo, CA (NPI 1104222660).
Provider details
- NPI number
- 1104222660
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A14283 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2014-11-11
- Last updated
- 2024-12-19
- Certified
- 2024-12-19
Frequently asked questions
- What is Colette Vassilian's NPI number?
- Colette Vassilian's National Provider Identifier (NPI) is 1104222660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colette Vassilian's specialty?
- Colette Vassilian is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Colette Vassilian located?
- Colette Vassilian's practice location on file with NPPES is 1505 Saint Alphonsus Way, Alamo, CA 94507-1570.
- What is Colette Vassilian's phone number?
- The practice phone number listed in the NPPES registry for Colette Vassilian is (925) 838-4633.
- Does Colette Vassilian accept Medicare?
- Colette Vassilian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colette Vassilian's NPI active?
- Yes — Colette Vassilian's NPI (1104222660) is active in the NPPES registry as of the last update on 2024-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.