Dr. Colette Vassilian, DO
- Industry payments
- $271
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 11
- State license
- 1
- Practice address
- 1505 St Alphonsus Way, Alamo, CA 94507
- Practice phone
- Call (925) 296-9872
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John Muir Physician Network
Alamo, California
Find Dr. Vassilian's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Colette Vassilian is a pediatrician in Alamo, California
Dr. Vassilian practices at John Muir Physician Network in Alamo, California.
Dr. Vassilian's NPI, 1104222660, was assigned on November 11, 2014. Dr. Vassilian graduated from Arizona School of Dentistry and Oral Health - Mesa in 2014. Dr. Vassilian holds California license 20A14283.
- NPI
- 1104222660NPI Registry (opens in a new tab)
- NPI enumeration date
- November 11, 2014
- NPI status
- Active
- Practice phone
- (925) 296-9872
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Colette Vassilian practices at John Muir Physician Network in Alamo, California
Dr. Vassilian's primary practice is John Muir Physician Network, at 1505 St Alphonsus Way, Alamo, CA 94507 in Contra Costa County. The practice phone is (925) 296-9872.
- John Muir Physician Network1505 St Alphonsus Way, Alamo, CA 94507 · Contra Costa CountyPhone(925) 296-9872
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Colette Vassilian is affiliated with 2 sites of care and 1 medical group
Dr. Vassilian's primary practice is John Muir Physician Network in Alamo, California. The medical group on file is John Muir Medical Group. Dmand AI also links Dr. Vassilian to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Colette Vassilian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vassilian practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John Muir Physician Network | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Colette Vassilian is one of 8,236 pediatricians in California
Pediatrics is Dr. Vassilian's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Vassilian is board certified in pediatrics by the American Board of Pediatrics. Dr. Vassilian is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Vassilian
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Colette Vassilian's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Vassilian's median patient age at 10, with 58% women.
Dr. Vassilian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women58%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Colette Vassilian received $271 in industry payments from 2019 to 2025
CMS Open Payments shows 8 general payments to Dr. Vassilian from 5 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $151.
General payments to Dr. Vassilian by program year, 2019 to 2025
Companies that paid Dr. Vassilian the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Colette Vassilian graduated from Arizona School of Dentistry and Oral Health - Mesa
Dr. Vassilian graduated from Arizona School of Dentistry and Oral Health - Mesa in 2014.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Colette Vassilian accepts plans from 11 insurance carriers
Dr. Vassilian is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- +3 more carriersWith a free account
Plan types Dr. Vassilian accepts, by number of carriers
- PPO7
- HMO6
- Medicare5
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Colette Vassilian's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Colette Vassilian
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Colette Vassilian's NPI number?
Dr. Colette Vassilian's NPI number is 1104222660. It was assigned on November 11, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Colette Vassilian?
Dr. Colette Vassilian is a pediatrician in Alamo, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Colette Vassilian practice?
Dr. Vassilian practices at 1505 St Alphonsus Way, Alamo, CA 94507. Dr. Vassilian's primary practice is John Muir Physician Network in Alamo, California. Dmand AI also links Dr. Vassilian to 1 group practice or clinic.
What is Dr. Colette Vassilian's office phone number?
The practice phone on file for Dr. Vassilian is (925) 296-9872.
What is Dr. Colette Vassilian's medical license number?
Dr. Vassilian holds California license 20A14283.
What medical group is Dr. Colette Vassilian part of?
Dr. Vassilian is linked to John Muir Medical Group.
Is Dr. Colette Vassilian board certified?
Yes. Dr. Vassilian is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. Colette Vassilian go to medical school?
Dr. Vassilian graduated from Arizona School of Dentistry and Oral Health - Mesa in 2014.
Has Dr. Colette Vassilian received payments from drug or device companies?
CMS Open Payments shows $271 in general payments to Dr. Vassilian from 5 companies from 2019 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Colette Vassilian been practicing?
Dr. Vassilian graduated from medical school in 2014, 12 years ago.
What insurance does Dr. Colette Vassilian accept?
Dr. Vassilian is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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