Dr. Vanessa S. Chan, MD
- Hospital affiliations
- 1
- Industry payments
- $703
- Medical groups
- 2
- Insurance carriers
- 7
- State license
- 1
- Practice address
- 250 Bon Air Road, Greenbrae, CA 94904
- Practice phone
- Call (415) 925-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chan'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. Vanessa S. Chan is an OB-GYN in Greenbrae, California
Dr. Chan practices at MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.
Dr. Chan's NPI, 1114960747, was assigned on June 13, 2006. Dr. Chan graduated from UC San Diego School of Medicine in 2002. Dr. Chan holds California license A95098.
- NPI
- 1114960747NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739188145
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 925-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vanessa S. Chan practices at MarinHealth Medical Center in Greenbrae, California
Dr. Chan's primary practice is MarinHealth Medical Center, at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County. The practice phone is (415) 925-7900.
- MarinHealth Medical Center250 Bon Air Road, Greenbrae, CA 94904 · Marin CountyPhone(415) 925-7900
Source: Dmand AI Affiliation Data
Dr. Vanessa S. Chan is affiliated with 2 sites of care and 2 medical groups
Dr. Chan's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. The medical group on file is Asian Health Services. Dmand AI also links Dr. Chan to 1 more community health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Vanessa S. Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MarinHealth Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Marin Healthcare District and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Vanessa S. Chan is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Chan is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Chan is licensed in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
OB-GYNs near Dr. Chan
Counts of OB-GYNs 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. Vanessa S. Chan's patients have a median age of 42
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 42, with 96% women.
Dr. Chan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women96%
- Men2%
Source: Dmand AI Patient Panel Data
How Dr. Vanessa S. Chan takes part in Medicare
Dr. Chan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Vanessa S. Chan received $703 in industry payments from 2016 to 2024
CMS Open Payments shows 10 general payments to Dr. Chan from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 96% of the total. Amarin Pharma Inc. paid the most, $272.
General payments to Dr. Chan by program year, 2016 to 2024
General payments to Dr. Chan by kind, 2016 to 2024
- Food and beverage$67796%
- Education$254%
Companies that paid Dr. Chan the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Vanessa S. Chan graduated from UC San Diego School of Medicine
Dr. Chan graduated from UC San Diego School of Medicine in 2002.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Vanessa S. Chan accepts plans from 7 insurance carriers
Dr. Chan is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Chan accepts, by number of carriers
- Medicare6
- PPO6
- HMO3
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Vanessa S. Chan'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Vanessa S. Chan
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. Vanessa S. Chan's NPI number?
Dr. Vanessa S. Chan's NPI number is 1114960747. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Vanessa S. Chan?
Dr. Vanessa S. Chan is an OB-GYN in Greenbrae, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Vanessa S. Chan practice?
Dr. Chan practices at 250 Bon Air Road, Greenbrae, CA 94904. Dr. Chan's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dmand AI also links Dr. Chan to 1 community health center and 1 medical group.
What is Dr. Vanessa S. Chan's office phone number?
The practice phone on file for Dr. Chan is (415) 925-7900.
What is Dr. Vanessa S. Chan's medical license number?
Dr. Chan holds California license A95098.
Which hospitals is Dr. Vanessa S. Chan affiliated with?
Dr. Chan practices at MarinHealth Medical Center in Greenbrae, California.
What medical group is Dr. Vanessa S. Chan part of?
Dr. Chan is linked to Asian Health Services. Dmand AI links Dr. Chan to 1 more medical group.
Does Dr. Vanessa S. Chan accept Medicare?
Yes. CMS lists Dr. Chan as accepting Medicare assignment.
Is Dr. Vanessa S. Chan board certified?
Yes. Dr. Chan is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Where did Dr. Vanessa S. Chan go to medical school?
Dr. Chan graduated from UC San Diego School of Medicine in 2002.
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Has Dr. Vanessa S. Chan received payments from drug or device companies?
CMS Open Payments shows $703 in general payments to Dr. Chan from 7 companies from 2016 to 2024. The largest total came from Amarin Pharma Inc.
How long has Dr. Vanessa S. Chan been practicing?
Dr. Chan graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Vanessa S. Chan accept?
Dr. Chan is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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