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Dr. Jennifer Winnie Chou, MD
NPI1033439104PAC ID7315189164
- Medicare services, 2024
- 13
- Medicare patients, 2024
- 21
- Part D claims, 2024
- 117
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1600 Eureka Road, Roseville, CA 95661
- Practice phone
- Call (916) 784-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chou'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. Jennifer Winnie Chou is an emergency medicine physician in Roseville, California
Dr. Chou practices at Roseville Medical Center in Roseville, California, part of Kaiser Permanente.
Dr. Chou's NPI, 1033439104, was assigned on June 10, 2010. Dr. Chou graduated from University Of Michigan Medical School in 2010. Dr. Chou holds California license C156775.
NPI and contact details
- NPI
- 1033439104NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315189164
- NPI enumeration date
- June 10, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 784-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Winnie Chou practices at Roseville Medical Center in Roseville, California
Dr. Chou's primary practice is Roseville Medical Center, at 1600 Eureka Road, Roseville, CA 95661 in Placer County. The practice phone is (916) 784-4000.
- Roseville Medical Center1600 Eureka Road, Roseville, CA 95661 · Placer CountyPhone(916) 784-4000
Source: Dmand AI Affiliation Data
Dr. Jennifer Winnie Chou is affiliated with 1 site of care and 1 medical group
Dr. Chou's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jennifer Winnie Chou's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chou practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roseville Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jennifer Winnie Chou is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Chou's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chou is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Chou's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Michigan license
Emergency medicine physicians near Dr. Chou
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
7,423emergency medicine physicians in California106emergency medicine physicians in Roseville54emergency medicine physicians at Roseville Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jennifer Winnie Chou billed Medicare for 13 services in 2024
CMS data shows 13 Medicare services from Dr. Chou across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $1,580 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202413
Medicare patients21
Paid by Medicare$1,580
Procedure codes1
Dr. Chou's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 122024: 138%
Dr. Chou compared with the California median for emergency medicine physicians, 2024
- Dr. Chou
- California median
- Medicare services
- 13vs 26595% below
- Medicare patients
- 21vs 24391% below
- Part D claims
- 20vs 6268% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Chou's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chou?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chou and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer Winnie Chou treated 21 Medicare patients in 2024, average age 67
CMS counts 21 Medicare patients who saw Dr. Chou in 2024. 75% of them have high blood pressure. Their average risk score is 1.68, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chou's median patient age at 36, with 60% women.
Medicare patients, 202421
Average age67
Average risk score1.68
Chronic conditions among Dr. Chou's Medicare patients, 2024
- High blood pressure75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chou's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jennifer Winnie Chou wrote 117 Medicare Part D claims in 2024
In 2024, Dr. Chou wrote 117 Medicare Part D claims for 80 patients. 89% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $124 in total drug cost. In 2022, CMS named 33 claims across 2 drugs.
Part D claims, 2024117
Drugs named by CMS1
Total drug cost$124
Part D patients80
Dr. Chou's Part D claims by kind of drug, 2024
- Generic104 claims89%
- Brand-name13 claims11%
Dr. Chou's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chou's Part D claims, 2024
- Opioids16%19 of 117 claims
- Antibiotics26%31 of 117 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 332023: 2039%
Drugs named by CMS: 1 in 2023, 2 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jennifer Winnie Chou takes part in Medicare
Dr. Chou 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)
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Dr. Jennifer Winnie Chou has 1 publication on record
Dmand AI links 1 paper to Dr. Chou.
Papers1
Recent publications by Dr. Chou
See who Dr. Chou researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chou works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jennifer Winnie Chou graduated from University Of Michigan Medical School
Dr. Chou graduated from University Of Michigan Medical School in 2010.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Jennifer Winnie Chou accepts plans from 2 insurance carriers
Dr. Chou is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chou accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jennifer Winnie Chou'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Jennifer Winnie Chou
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. Jennifer Winnie Chou's NPI number?
Dr. Jennifer Winnie Chou's NPI number is 1033439104. It was assigned on June 10, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Winnie Chou?
Dr. Jennifer Winnie Chou is an emergency medicine physician in Roseville, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jennifer Winnie Chou practice?
Dr. Chou practices at 1600 Eureka Road, Roseville, CA 95661. Dr. Chou's primary practice is Roseville Medical Center in Roseville, California, part of Kaiser Permanente.
What is Dr. Jennifer Winnie Chou's office phone number?
The practice phone on file for Dr. Chou is (916) 784-4000.
What is Dr. Jennifer Winnie Chou's medical license number?
Dr. Chou holds California license C156775, one of the licenses on file in 2 states.
Which states has Dr. Jennifer Winnie Chou been licensed in?
Dmand AI has state licenses on file for Dr. Chou in California (2018 to 2026) and Michigan (2013 to 2020).
Which hospitals is Dr. Jennifer Winnie Chou affiliated with?
Dr. Chou practices at Roseville Medical Center in Roseville, California.
What medical group is Dr. Jennifer Winnie Chou part of?
Dr. Chou is linked to The Permanente Medical Group, Inc.
Does Dr. Jennifer Winnie Chou accept Medicare?
Yes. CMS data shows Dr. Chou billed Medicare for 13 services in 2024, and Dr. Chou accepts Medicare assignment.
How many Medicare patients does Dr. Jennifer Winnie Chou see?
CMS counts 21 Medicare patients who saw Dr. Chou in 2024, with an average age of 67.
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Is Dr. Jennifer Winnie Chou board certified?
Yes. Dr. Chou is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Jennifer Winnie Chou bill to Medicare?
In 2024, Dr. Chou's most billed Medicare services were emergency department visit (99285).
Where did Dr. Jennifer Winnie Chou go to medical school?
Dr. Chou graduated from University Of Michigan Medical School in 2010.
What drugs does Dr. Jennifer Winnie Chou prescribe most?
In 2023 Medicare Part D data, Dr. Chou's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
How long has Dr. Jennifer Winnie Chou been practicing?
Dr. Chou graduated from medical school in 2010, 16 years ago.
Does Dr. Jennifer Winnie Chou do research?
Dmand AI links 1 publication to Dr. Chou.
What insurance does Dr. Jennifer Winnie Chou accept?
Dr. Chou is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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