Dr. Michael Yee Chen, MD
- Medicare services, 2019
- 17
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 5,393
- Industry payments
- $490
- Affiliated sites
- 3
- Practice address
- 9400 Rosecrans Avenue, Bellflower, CA 90706
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD
Acute Care Hospital outpatient department · Bellflower, California
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Michael Yee Chen is an internist in Bellflower, California
Dr. Chen practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California.
Dr. Chen's NPI, 1629217138, was assigned on February 8, 2009. Dr. Chen holds California license A106243.
- NPI
- 1629217138NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961556196
- NPI enumeration date
- February 8, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Yee Chen practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California
Dr. Chen's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD, at 9400 Rosecrans Avenue, Bellflower, CA 90706.
- Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD9400 Rosecrans Avenue, Bellflower, CA 90706
Source: Dmand AI Affiliation Data
Dr. Michael Yee Chen is affiliated with 3 sites of care and 1 medical group
Dr. Chen's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chen to 1 more breast imaging center and 1 group practice or clinic, each named with a free account. Dr. Chen's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael Yee Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Yee Chen is one of 16,751 internists in California
Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Chen
Counts of internists 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. Michael Yee Chen billed Medicare for 17 services in 2019
CMS data shows 17 Medicare services from Dr. Chen across 1 procedure code in 2019, all of them office visits, for 12 Medicare patients. Medicare paid $614 for them. Every service was in an office.
Dr. Chen compared with the California median for internists, 2019
- Dr. Chen
- California median
- Medicare services
- 17vs 36195% below
- Medicare patients
- 12vs 15192% below
- Part D claims
- 4,970vs 42111.8 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Yee Chen treated 12 Medicare patients in 2024, average age 67
CMS counts 12 Medicare patients who saw Dr. Chen in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 57, with 62% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Yee Chen wrote 5,393 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 5,393 Medicare Part D claims for 598 patients. 88% of them were for generic drugs. CMS names the drug for 4,970 of them, across 89 drugs with 11 or more claims each, at $240,390 in total drug cost. In 2023, CMS named 5,345 claims across 86 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic4,724 claims88%
- Brand-name566 claims10%
- Other103 claims2%
Dr. Chen's most prescribed drugs by claims, 2024
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. Chen's Part D claims, 2024
- Opioids3%163 of 5,393 claims
- Antibiotics2%122 of 5,393 claims
- Antipsychotics, patients 65 and over0%20 of 5,393 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,3452024: 4,9707%
Drugs named by CMS: 89 in 2024, 86 in 2023.
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
Dr. Michael Yee Chen offers telehealth to Medicare patients
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael Yee Chen received $490 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to Dr. Chen from 4 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $387.
General payments to Dr. Chen by program year, 2017 to 2025
Companies that paid Dr. Chen the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Yee Chen'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Michael Yee Chen
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. Michael Yee Chen's NPI number?
Dr. Michael Yee Chen's NPI number is 1629217138. It was assigned on February 8, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Yee Chen?
Dr. Michael Yee Chen is an internist in Bellflower, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Yee Chen practice?
Dr. Chen practices at 9400 Rosecrans Avenue, Bellflower, CA 90706. Dr. Chen's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dmand AI also links Dr. Chen to 1 breast imaging center and 1 group practice or clinic.
What is Dr. Michael Yee Chen's medical license number?
Dr. Chen holds California license A106243.
What medical group is Dr. Michael Yee Chen part of?
Dr. Chen is linked to Southern California Permanente Medical Group.
Does Dr. Michael Yee Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 17 services in 2019, and Dr. Chen accepts Medicare assignment.
Does Dr. Michael Yee Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
How many Medicare patients does Dr. Michael Yee Chen see?
CMS counts 12 Medicare patients who saw Dr. Chen in 2024, with an average age of 67.
What services does Dr. Michael Yee Chen bill to Medicare?
In 2019, Dr. Chen's most billed Medicare services were office visit, established patient (99213).
What drugs does Dr. Michael Yee Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Michael Yee Chen received payments from drug or device companies?
CMS Open Payments shows $490 in general payments to Dr. Chen from 4 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Michael Yee Chen been practicing?
Dr. Chen graduated from medical school in 2007, 19 years ago.
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