NPPES file of Aug 9, 2026

Jian Chen, M.D.

Family Medicine Physician · Loma Linda, CA

Jian Chen, M.D. is a family medicine physician with a practice address in Loma Linda, California, and NPI 1841633617, issued on Apr 11, 2013. Check the license (California A138143, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1841633617
Name
Jian Chen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A138143 CA
Self-reported in NPPES; status is on the state search
Practice location
25455 Barton RD, Loma Linda, CA 92354
Phone
(909) 558-6526
Enumerated
Apr 11, 2013
Record last updated
Sep 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160805002428); 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 25455 Barton RD

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

  1. Dawn Banks, P.A.Physician Assistant1699705574
  2. Ahmed Bata, MDOrthopaedic Surgery Physician1184864423
  3. Gary Botimer, MDOrthopaedic Surgery Physician1124018114
  4. Emerald Caruso, M.D.Obstetrics & Gynecology Physician1811015209
  5. Zachary Cash, P.A.Physician Assistant1275717316
  6. Heidi Choi, MDFamily Medicine Physician1679707962

Verify Jian Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A138143
    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 California 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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86% fewer Medicare Part D claims than the average family medicine physician in 2024

486 Medicare Part D claims for 286 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Jian Chen486
  2. Specialty average3,544

Most prescribed

  1. Azithromycin87 claims
  2. Albuterol Sulfate Hfa59 claims
  3. Methylprednisolone49 claims
  4. Amoxicillin-Clavulanate Potass44 claims
  5. Ciprofloxacin Hcl35 claims
  6. Ibuprofen31 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.

Industry payments in 2024: $44.47

2 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jian Chen$44.47
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Providence Medical FoundationFullerton, CA

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

62 family medicine physician records list a practice address in Loma Linda

They are 62 of the 4,863 NPPES records with a practice address in Loma Linda, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

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

Jian Chen, M.D.'s National Provider Identifier (NPI) is 1841633617, issued on Apr 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Jian Chen, M.D. located?

The NPPES record lists a practice address at 25455 Barton RD, Loma Linda, CA, 92354. Phone: (909) 558-6526. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number A138143, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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

In 2024, Jian Chen, M.D. had 486 Medicare Part D claims for 286 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.