NPPES file of Aug 9, 2026

James Lin Chen, M.D.

Medical Oncology Physician · Columbus, OH

James Lin Chen, M.D. is a medical oncology physician with a practice address in Columbus, Ohio, and NPI 1558520502, issued on Jun 5, 2008. Check the license (Ohio 35.120224, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558520502
Name
James Lin Chen
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
35.120224 OH
036120524 IL
Self-reported in NPPES; status is on the state search
Practice location
460 W 10TH Ave, Columbus, OH 43210
Phone
(614) 293-5066
Enumerated
Jun 5, 2008
Record last updated
Dec 17, 2025
Fax
(614) 293-9449
Medicare enrollment
Enrolled (PECOS I20130109000781); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 460 W 10TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amina Abdule, APRN-CNPFamily Nurse Practitioner1316346786
  2. Megan Adelman, PA-CPhysician Assistant1437355492
  3. Hailey AdlerPhysician Assistant1740024843
  4. Taimoor Adnan, M.D.Internal Medicine Physician1225481088
  5. Laura Adorni, C.N.P.Nurse Practitioner1295181832
  6. Mariam Ahmed, APRN-CNPAcute Care Nurse Practitioner1609612035

Verify James Lin Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35.120224
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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73% fewer Medicare Part D claims than the average medical oncology physician in 2024

188 Medicare Part D claims for 20 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 27 claims were for opioids.

  1. James Chen188
  2. Specialty average703

Most prescribed

  1. Imatinib Mesylate24 claims
  2. Oxycodone Hcl14 claims
  3. Abiraterone Acetate12 claims
  4. Gleevec12 claims
  5. Morphine Sulfate Er12 claims
  6. Ibrance11 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.

The MIPS final score for 2023 (Medicare payment program): 95.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Osu Internal Medicine LLCColumbus, OH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James Lin Chen among 169 medical oncology physician records in Ohio

James Lin Chen, M.D. is one of 169 medical oncology physician records with a practice address in Ohio. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 51% of them.

  • NPI issued2008 · 51% of these records are older, 41% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2005 · median 2006 among the 132 with a school on file
  • Record last updated2025 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Ohio

There are 169 medical oncology physician records in Ohio.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Timothy Burns, M.D. PH.D.Columbus, OH 432101639225519
  2. David Carbone, MD, PHDColumbus, OH 432101558453977
  3. Steven Clinton, MD, PHDColumbus, OH 432101790792968
  4. Edmund Folefac, M.D.Columbus, OH 432101174540538
  5. David Hayes, MDColumbus, OH 432101558436337
  6. Zihai Li, M.D.Columbus, OH 432101306833934
  7. J. Monk, MDColumbus, OH 432101881601359
  8. Amir Mortazavi, MDColumbus, OH 432101124036181

Common questions

What is James Lin Chen, M.D.'s NPI number?

James Lin Chen, M.D.'s National Provider Identifier (NPI) is 1558520502, issued on Jun 5, 2008. An NPI identifies a provider in billing; it is not a license.

Where is James Lin Chen, M.D. located?

The NPPES record lists a practice address at 460 W 10TH Ave, Columbus, OH, 43210. Phone: (614) 293-5066. Providers update this record themselves, so call before visiting.

How can I verify James Lin Chen, M.D.'s license?

NPPES lists Ohio license number 35.120224, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does James Lin Chen, M.D. prescribe under Medicare Part D?

In 2024, James Lin Chen, M.D. had 188 Medicare Part D claims for 20 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is James Lin Chen, M.D.'s MIPS final score?

The 2023 MIPS final score is 95.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.