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Dr. Michael P. Chen, MD
NPI1306913256
- Part D claims, 2021
- 355
- Publications
- 10
- Industry payments
- $10
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335-6720
- Practice phone
- Call (909) 427-3910
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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Dr. Michael P. Chen is an internist in Fontana, California
Dr. Chen practices in Fontana, California.
Dr. Chen's NPI, 1306913256, was assigned on November 29, 2006. Dr. Chen holds California license A66112.
NPI and contact details
- NPI
- 1306913256NPI Registry (opens in a new tab)
- NPI enumeration date
- November 29, 2006
- NPI status
- Active
- Practice phone
- (909) 427-3910
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Michael P. Chen's practice address is in Fontana, California
Dr. Chen's practice address in the NPI Registry is 9961 Sierra Ave, Fontana, CA 92335-6720. The practice phone is (909) 427-3910.
- NPI Registry address9961 Sierra Ave, Fontana, CA 92335-6720Phone(909) 427-3910
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Michael P. 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 |
|---|---|
| Dr. Chen's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael P. 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 P. Chen wrote 355 Medicare Part D claims in 2021
In 2021, Dr. Chen wrote 355 Medicare Part D claims. They cover 17 drugs, with $13,953 in total drug cost. In 2020, CMS named 515 claims across 28 drugs.
Part D claims, 2021355
Drugs named by CMS17
Total drug cost$13,953
Dr. Chen's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 5152021: 35531%
Drugs named by CMS: 17 in 2021, 28 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Michael P. Chen has 10 publications on record
Dmand AI links 10 papers to Dr. Chen, published from 2012 to 2023. 2012 was the busiest year, with 3. The most frequent topics are Antitubercular Agents, Mycobacterium tuberculosis and Drug Resistance, Multiple, Bacterial. Dr. Chen has published most often in Clin Infect Dis. Dr. Chen's most frequent co-authors are Robert W. Belknap, MD, David Preston Holland, MD, MHS and Charlotte Louise Kvasnovsky, MD, MPH.
Papers10
Years published2012 to 2023
Dr. Chen's papers by year, 2012 to 2023
Topics Dr. Chen writes about most
- Antitubercular Agents
- Mycobacterium tuberculosis
- Drug Resistance, Multiple, Bacterial
- Sputum
- Tuberculosis
- Tuberculosis, Multidrug-Resistant
- Data Interpretation, Statistical
- Isoniazid
Dr. Chen's most frequent co-authors
- Robert W. Belknap, MD2 shared papers
- David Preston Holland, MD, MHS2 shared papers
- Charlotte Louise Kvasnovsky, MD, MPH2 shared papers
Recent publications by Dr. Chen
Antitubercular AgentsDrug Resistance, Multiple, BacterialMycobacterium tuberculosis
Clin Infect Dis
Antitubercular AgentsDrug Resistance, Multiple, BacterialGenotyping Techniques
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael P. Chen received $10 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Chen from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $10.
Companies that paid Dr. Chen the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael P. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| 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 P. 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 P. Chen's NPI number?
Dr. Michael P. Chen's NPI number is 1306913256. It was assigned on November 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael P. Chen?
Dr. Michael P. Chen is an internist in Fontana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael P. Chen practice?
Dr. Chen practices at 9961 Sierra Ave, Fontana, CA 92335-6720.
What is Dr. Michael P. Chen's office phone number?
The practice phone on file for Dr. Chen is (909) 427-3910.
What is Dr. Michael P. Chen's medical license number?
Dr. Chen holds California license A66112.
What drugs does Dr. Michael P. Chen prescribe most?
In 2021 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Quetiapine Fumarate, Trazodone HCl and Divalproex Sodium.
Has Dr. Michael P. Chen received payments from drug or device companies?
CMS Open Payments shows $10 in general payments to Dr. Chen from 1 company from 2017 to 2017. The largest total came from Allergan Inc.
How long has Dr. Michael P. Chen been practicing?
Dr. Chen's NPI was assigned in 2006.
Does Dr. Michael P. Chen do research?
Dmand AI links 10 publications to Dr. Chen, published from 2012 to 2023.
Who does Dr. Michael P. Chen publish with?
Dr. Chen's most frequent co-authors are Robert W. Belknap, MD (2 shared papers), David Preston Holland, MD, MHS (2 shared papers) and Charlotte Louise Kvasnovsky, MD, MPH (2 shared papers).
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