Jennifer Winnie Chou, M.D.
Emergency Medicine Physician · Roseville, CA
Jennifer Winnie Chou, M.D. is an emergency medicine physician with a practice address in Roseville, California, and NPI 1033439104, issued on Jun 10, 2010. Check the license (California C156775, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Winnie Chou
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- C156775 CA
4301096773 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Eureka RD, Roseville, CA 95661
- Phone
- (916) 784-4000
- Enumerated
- Jun 10, 2010
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200116001616); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2010
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1600 Eureka RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rizwana Abdullah, MDHospitalist Physician1194899401
- Uldis AbelePharmacist1619078706
- Michael AbughazalehPhysical Therapist1982113502
- Mohamad Adada, M.D., PHDHematology & Oncology Physician1528590734
- Scott Adams, MDPediatric Hematology & Oncology Physician1013067818
- Aleisha Anne Aguilar, NPStudent in an Organized Health Care Education/Training Program1053174953
Verify Jennifer Winnie Chou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C156775Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average emergency medicine physician in 2024
117 Medicare Part D claims for 80 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 19 claims were for opioids.
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.
Bills Medicare through one group practice
- Permanente Medical Group IncRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Winnie Chou among 7,751 emergency medicine physician records in California
Jennifer Winnie Chou, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2010 · median 2011 among the 4,560 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 emergency medicine physician records list a practice address in Roseville
They are 54 of the 5,340 NPPES records with a practice address in Roseville, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Roseville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Angela Bell, M.D.Roseville, CA 956611578560389
- Mark Biittner, M.D.Roseville, CA 956611932120235
- Dana Dunlavey, M.DRoseville, CA 956611265454037
- Darilyn Falck, M.D.Roseville, CA 956611275644643
- Keith Fenderson, M.DRoseville, CA 956611902824873
- Dawn Hitchcock, M.DRoseville, CA 956611720006604
- Jon Johnston, D.ORoseville, CA 956611629090220
- Christopher Markus, D.ORoseville, CA 956611891717427
Common questions
What is Jennifer Winnie Chou, M.D.'s NPI number?
Jennifer Winnie Chou, M.D.'s National Provider Identifier (NPI) is 1033439104, issued on Jun 10, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Winnie Chou, M.D. located?
The NPPES record lists a practice address at 1600 Eureka RD, Roseville, CA, 95661. Phone: (916) 784-4000. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Winnie Chou, M.D.'s license?
NPPES lists California license number C156775, 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 Jennifer Winnie Chou, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Winnie Chou, M.D. had 117 Medicare Part D claims for 80 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.