Dr. Tan M. Chen, MD
- Part D claims, 2024
- 560
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 2
- State license
- 1
- Practice address
- 7300 North Fresno St, Fresno, CA 93720
- Practice phone
- Call (559) 448-4500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Tan M. Chen is an internist in Fresno, California
Dr. Chen practices at Kaiser Permanente Fresno Medical Center in Fresno, California, part of Kaiser Permanente.
Dr. Chen's NPI, 1477693927, was assigned on February 7, 2007. Dr. Chen graduated from China Medicine University in 1997. Dr. Chen's California license number on file is A96579.
- NPI
- 1477693927NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466558747
- NPI enumeration date
- February 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (559) 448-4500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tan M. Chen practices at Kaiser Permanente Fresno Medical Center in Fresno, California
Dr. Chen's primary practice is Kaiser Permanente Fresno Medical Center, at 7300 North Fresno St, Fresno, CA 93720 in Fresno County. The practice phone is (559) 448-4500.
- Kaiser Permanente Fresno Medical Center7300 North Fresno St, Fresno, CA 93720 · Fresno CountyPhone(559) 448-4500
Source: Dmand AI Affiliation Data
Dr. Tan M. Chen is affiliated with 1 site of care and 1 medical group
Dr. Chen's primary practice is Kaiser Permanente Fresno Medical Center in Fresno, 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. Tan M. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Fresno Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tan M. 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 board certified in internal medicine by the American Board of Internal Medicine. Dr. Chen has a license on file 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. Tan M. Chen's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 53, with 68% women.
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 53
Patient panel by sex, all payers
- Women68%
- Men31%
Source: Dmand AI Patient Panel Data
Dr. Tan M. Chen wrote 560 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 560 Medicare Part D claims for 246 patients. 86% of them were for generic drugs. CMS names the drug for 269 of them, across 14 drugs with 11 or more claims each, at $8,555 in total drug cost. In 2023, CMS named 353 claims across 15 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic482 claims86%
- Brand-name67 claims12%
- Other11 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
- Antibiotics7%37 of 560 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: 3532024: 26924%
Drugs named by CMS: 14 in 2024, 15 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. Tan M. Chen takes part in Medicare
Dr. Chen 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. Tan M. Chen graduated from China Medicine University
Dr. Chen graduated from China Medicine University in 1997.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Tan M. Chen accepts plans from 2 insurance carriers
Dr. Chen 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. Chen accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Tan M. 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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Tan M. 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. Tan M. Chen's NPI number?
Dr. Tan M. Chen's NPI number is 1477693927. It was assigned on February 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Tan M. Chen?
Dr. Tan M. Chen is an internist in Fresno, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Tan M. Chen practice?
Dr. Chen practices at 7300 North Fresno St, Fresno, CA 93720. Dr. Chen's primary practice is Kaiser Permanente Fresno Medical Center in Fresno, California, part of Kaiser Permanente.
What is Dr. Tan M. Chen's office phone number?
The practice phone on file for Dr. Chen is (559) 448-4500.
What is Dr. Tan M. Chen's medical license number?
Dr. Chen's California license number on file is A96579.
Which hospitals is Dr. Tan M. Chen affiliated with?
Dr. Chen practices at Kaiser Permanente Fresno Medical Center in Fresno, California.
What medical group is Dr. Tan M. Chen part of?
Dr. Chen is linked to The Permanente Medical Group, Inc.
Does Dr. Tan M. Chen accept Medicare?
Yes. CMS lists Dr. Chen as accepting Medicare assignment.
Is Dr. Tan M. Chen board certified?
Yes. Dr. Chen is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Tan M. Chen go to medical school?
Dr. Chen graduated from China Medicine University in 1997.
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What drugs does Dr. Tan M. Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Fluticasone Propionate, Prednisone and Montelukast Sodium.
How long has Dr. Tan M. Chen been practicing?
Dr. Chen graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Tan M. Chen accept?
Dr. Chen 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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