NPPES file of Aug 9, 2026

Cindy Chen Jen, M.D.

Family Medicine Physician · Los Alamitos, CA

Cindy Chen Jen, M.D. is a family medicine physician with a practice address in Los Alamitos, California, and NPI 1104123199, issued on Feb 28, 2011. Check the license (California A118356, 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
1104123199
Name
Cindy Chen Jen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A118356 CA
Self-reported in NPPES; status is on the state search
Practice location
10861 Cherry St Ste 105, Los Alamitos, CA 90720
Phone
(562) 259-8881
Enumerated
Feb 28, 2011
Record last updated
Feb 25, 2026
Fax
(562) 259-8887
Medicare enrollment
Enrolled (PECOS I20131127000085); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2010
Telehealth
Offers telehealth (CMS)
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 10861 Cherry St Ste 105

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

  1. Gloria Hu, M.D.Family Medicine Physician1396062279
  2. Richard Lee, D.O.Family Medicine Physician1538454392
  3. Rebecca Schwartz, MDObstetrics & Gynecology Physician1619931599
  4. Danielle Villatoro, NPWomen's Health Nurse Practitioner1023560885

Verify Cindy Chen Jen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A118356
    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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18% more Medicare Part D claims than the average family medicine physician in 2024

4,181 Medicare Part D claims for 425 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 155 claims were for opioids.

  1. Cindy Jen4,181
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium442 claims
  2. Amlodipine Besylate197 claims
  3. Levothyroxine Sodium194 claims
  4. Losartan Potassium149 claims
  5. Lisinopril138 claims
  6. Alendronate Sodium116 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.

Bills Medicare through 3 group practices

  1. Centers For Family Medicine GPCypress, CA
  2. Healthcare Partners Affiliates Medical GroupCypress, CA
  3. Prohealth Partners, A Medical GroupLos Alamitos, CA

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

Cindy Chen Jen among 17,133 family medicine physician records in California

Cindy Chen Jen, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 63% of them.

  • NPI issued2011 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2010 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 family medicine physician records list a practice address in Los Alamitos

They are 18 of the 1,035 NPPES records with a practice address in Los Alamitos, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Andrea Brown, MDLos Alamitos, CA 907201710906706
  2. Daniel Chan, MDLos Alamitos, CA 907201346260908
  3. Jose De Souza, MDLos Alamitos, CA 907201649299637
  4. Sandra Goines, D.O.Los Alamitos, CA 907201790756054
  5. Nancy Helms, PACLos Alamitos, CA 907201407878143
  6. Gloria Hu, M.D.Los Alamitos, CA 907201396062279
  7. Jennifer Kim Loomis, D.O.Los Alamitos, CA 907201215136940
  8. Gregory Kimura, MDLos Alamitos, CA 907201962421958

Common questions

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

Cindy Chen Jen, M.D.'s National Provider Identifier (NPI) is 1104123199, issued on Feb 28, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Cindy Chen Jen, M.D. located?

The NPPES record lists a practice address at 10861 Cherry St Ste 105, Los Alamitos, CA, 90720. Phone: (562) 259-8881. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number A118356, 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 Cindy Chen Jen, M.D. prescribe under Medicare Part D?

In 2024, Cindy Chen Jen, M.D. had 4,181 Medicare Part D claims for 425 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.