Pei-Jon Chen, MD, MPH
Internal Medicine Physician · Princeton, NJ
Pei-Jon Chen, MD, MPH is an internal medicine physician with a practice address in Princeton, New Jersey, and NPI 1831223429, issued on Mar 15, 2007. Check the license (New Jersey MA50175, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Pei-Jon Chen
- Credential
- MD, MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MA50175 NJ
A42187 CA
Self-reported in NPPES; status is on the state search - Practice location
- Route 206 & Provinceline Road, Princeton, NJ 08543
- Phone
- (609) 252-4111
- Enumerated
- Mar 15, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (609) 252-6383
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at Route 206 & Provinceline Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Berman, MD, PHDResearch Study Specialist1851729602
Verify Pei-Jon Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license MA50175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
22 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Pei-Jon Chen among 4,632 internal medicine physician records in New Jersey
Pei-Jon Chen, MD, MPH is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 41% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
66 internal medicine physician records list a practice address in Princeton
They are 66 of the 1,622 NPPES records with a practice address in Princeton, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Princeton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Khyati Gokli, M.D.Princeton, NJ 085441790792893
- Emma LundsmithPrinceton, NJ 085421497133318
- Margot Putukian, MDPrinceton, NJ 085441548343601
- Gladys Valdesuso, MDPrinceton, NJ 085441467665554
- Kent Allenby, M.D.Princeton, NJ 085401396016960
- Danielle Coppola, MDPrinceton, NJ 085401033681432
- Jennifer Erskine, MDPrinceton, NJ 085401477796811
- Sharon Henry, M.D.Princeton, NJ 085401164767109
Common questions
What is Pei-Jon Chen, MD, MPH's NPI number?
Pei-Jon Chen, MD, MPH's National Provider Identifier (NPI) is 1831223429, issued on Mar 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Pei-Jon Chen, MD, MPH located?
The NPPES record lists a practice address at Route 206 & Provinceline Road, Princeton, NJ, 08543. Phone: (609) 252-4111. Providers update this record themselves, so call before visiting.
How can I verify Pei-Jon Chen, MD, MPH's license?
NPPES lists New Jersey license number MA50175, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Pei-Jon Chen, MD, MPH prescribe under Medicare Part D?
In 2024, Pei-Jon Chen, MD, MPH had 22 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.