Dr. Jonathan R. Chan, MD
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 3,881
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- 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. 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. Jonathan R. Chan is a family medicine physician in Bellflower, California
Dr. Chan practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California.
Dr. Chan's NPI, 1043831985, was assigned on May 1, 2020. Dr. Chan holds California license A185515.
- NPI
- 1043831985NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981059060
- NPI enumeration date
- May 1, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan R. Chan practices at Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California
Dr. Chan'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. Jonathan R. Chan is affiliated with 4 sites of care and 1 medical group
Dr. Chan's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dr. Chan is also affiliated with Downey Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chan to 1 more breast imaging center and 1 group practice or clinic, each named with a free account. Dr. Chan's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jonathan R. Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 4 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 |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan R. Chan is one of 15,680 family medicine physicians in California
Family medicine is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Chan is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Chan
Counts of family medicine physicians 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. Jonathan R. Chan treated 11 Medicare patients in 2024, average age 62
CMS counts 11 Medicare patients who saw Dr. Chan in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 52, with 59% women.
Dr. Chan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
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 52
Patient panel by sex, all payers
- Women59%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan R. Chan wrote 3,881 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 3,881 Medicare Part D claims for 1,874 patients. 89% of them were for generic drugs. CMS names the drug for 3,335 of them, across 67 drugs with 11 or more claims each, at $104,378 in total drug cost. In 2023, CMS named 134 claims across 8 drugs.
Dr. Chan's Part D claims by kind of drug, 2024
- Generic3,459 claims89%
- Brand-name339 claims9%
- Other83 claims2%
Dr. Chan'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. Chan's Part D claims, 2024
- Opioids1%53 of 3,881 claims
- Antibiotics3%128 of 3,881 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: 1342024: 3,3352389%
Drugs named by CMS: 67 in 2024, 8 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
How Dr. Jonathan R. 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Jonathan R. 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 Data |
| 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) |
| 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. Jonathan R. 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. Jonathan R. Chan's NPI number?
Dr. Jonathan R. Chan's NPI number is 1043831985. It was assigned on May 1, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan R. Chan?
Dr. Jonathan R. Chan is a family medicine physician in Bellflower, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Jonathan R. Chan practice?
Dr. Chan practices at 9400 Rosecrans Avenue, Bellflower, CA 90706. Dr. Chan's primary practice is Kaiser Permanente Medical Group Bellflower Medical Offices - HOPD in Bellflower, California. Dmand AI also links Dr. Chan to 1 breast imaging center and 1 group practice or clinic.
What is Dr. Jonathan R. Chan's medical license number?
Dr. Chan holds California license A185515.
Which hospitals is Dr. Jonathan R. Chan affiliated with?
Dr. Chan is affiliated with Downey Medical Center.
What medical group is Dr. Jonathan R. Chan part of?
Dr. Chan is linked to Southern California Permanente Medical Group.
Does Dr. Jonathan R. Chan accept Medicare?
Yes. CMS lists Dr. Chan as accepting Medicare assignment.
How many Medicare patients does Dr. Jonathan R. Chan see?
CMS counts 11 Medicare patients who saw Dr. Chan in 2024, with an average age of 62.
What drugs does Dr. Jonathan R. Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
How long has Dr. Jonathan R. Chan been practicing?
Dr. Chan graduated from medical school in 2020, 6 years ago.
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