Sophia Huimin Chan, MD
Obstetrics & Gynecology Physician · Santa Rosa, CA
Sophia Huimin Chan, MD is an obstetrics & gynecology physician with a practice address in Santa Rosa, California, and NPI 1649854704, issued on May 5, 2021. Check the license (California A200705, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sophia Huimin Chan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A200705 CA
Self-reported in NPPES; status is on the state search - Practice location
- 34 Mark West Springs RD FL 2, Santa Rosa, CA 95403
- Phone
- (707) 541-7900
- Enumerated
- May 5, 2021
- Record last updated
- Jun 12, 2025
- Fax
- (707) 573-5413
- Medicare enrollment
- Enrolled (PECOS I20250930002690); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 34 Mark West Springs RD FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Anderson, MDGastroenterology Physician1487691192
- Tara Bartlett, DOObstetrics & Gynecology Physician1588000863
- Harry Carr, M.D.Internal Medicine Physician1770694044
- Susan Dehnad, MDObstetrics & Gynecology Physician1922294834
- Afsoon Foorohar, D.O.Family Medicine Physician1962897645
- Hillary Garrison, FNP-CNurse Practitioner1316620297
Verify Sophia Huimin Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A200705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
30 Medicare Part D claims for 15 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $119.73
2 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sophia Huimin Chan among 5,088 obstetrics & gynecology physician records in California
Sophia Huimin Chan, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 96% of them.
- NPI issued2021 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2021 · median 2004 among the 2,700 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Santa Rosa → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- David Bennett, MDSanta Rosa, CA 954031770667743
- Lauren Bower, MDSanta Rosa, CA 954031588748586
- Jean Cool, MDSanta Rosa, CA 954031992889968
- Susan Dehnad, MDSanta Rosa, CA 954031922294834
- Brad Golditch, MDSanta Rosa, CA 954031962586966
- Madeline Huber, MDSanta Rosa, CA 954031467536458
- Richard Klekman, MDSanta Rosa, CA 954031497839468
- Richard Lederman, MDSanta Rosa, CA 954031679657746
Common questions
What is Sophia Huimin Chan, MD's NPI number?
Sophia Huimin Chan, MD's National Provider Identifier (NPI) is 1649854704, issued on May 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Sophia Huimin Chan, MD located?
The NPPES record lists a practice address at 34 Mark West Springs RD FL 2, Santa Rosa, CA, 95403. Phone: (707) 541-7900. Providers update this record themselves, so call before visiting.
How can I verify Sophia Huimin Chan, MD's license?
NPPES lists California license number A200705, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sophia Huimin Chan, MD prescribe under Medicare Part D?
In 2024, Sophia Huimin Chan, MD had 30 Medicare Part D claims for 15 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.