NPPES file of Aug 9, 2026

Aki Yen Chang Wen, D.O

Family Medicine Physician · San Diego, CA

Aki Yen Chang Wen, D.O is a family medicine physician with a practice address in San Diego, California, and NPI 1205126505, issued on Apr 8, 2011. Check the license (California 20A12555, 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
1205126505
Name
Aki Yen Chang Wen
Credential
D.O
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A12555 CA
Self-reported in NPPES; status is on the state search
Practice location
6386 Alvarado CT Ste 310, San Diego, CA 92120
Phone
(619) 713-7899
Enumerated
Apr 8, 2011
Record last updated
Mar 17, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140930001807); 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 6386 Alvarado CT Ste 310

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

  1. Sim BeauchampMarriage & Family Therapist1326890286
  2. Mia CaponeClinical Social Worker1558065847
  3. Moriah DavisMental Health Counselor1104684034
  4. Erica DooStudent in an Organized Health Care Education/Training Program1114701588
  5. Lindsey Ferrante-Lacbain, LMFTMarriage & Family Therapist1770906703
  6. Lissa GarciaMental Health Counselor1568196368

Verify Aki Yen Chang Wen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A12555
    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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80% fewer Medicare Part D claims than the average family medicine physician in 2024

700 Medicare Part D claims for 68 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Aki Wen700
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium84 claims
  2. Biktarvy75 claims
  3. Symtuza32 claims
  4. Genvoya29 claims
  5. Lisinopril27 claims
  6. Omeprazole26 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: $339.18

21 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. 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. Aki Wen$339.18
  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. Centro DE Salud DE LA Comunidad DE San Ysidro, Inc.National City, CA

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

Aki Yen Chang Wen among 17,133 family medicine physician records in California

Aki Yen Chang Wen, D.O 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
  • Graduated2011 · median 2005 among the 10,652 with a school on file
  • Record last updated2015 · 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).

780 family medicine physician records list a practice address in San Diego

They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Richard Brown, MDSan Diego, CA 921201528139565
  2. Abigail Buhain, MDSan Diego, CA 921201043252489
  3. Margaret Elizondo, M.D.San Diego, CA 921201386696466
  4. Nancy Green, MDSan Diego, CA 921201861569790
  5. Daniel Hiser, M.D.San Diego, CA 921201376577973
  6. Vincent Kater, M.D.San Diego, CA 921201629057005
  7. Ronald Kerr, MDSan Diego, CA 921201114094067
  8. Christine Ko, MDSan Diego, CA 921201265466551

Common questions

What is Aki Yen Chang Wen, D.O's NPI number?

Aki Yen Chang Wen, D.O's National Provider Identifier (NPI) is 1205126505, issued on Apr 8, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Aki Yen Chang Wen, D.O located?

The NPPES record lists a practice address at 6386 Alvarado CT Ste 310, San Diego, CA, 92120. Phone: (619) 713-7899. Providers update this record themselves, so call before visiting.

How can I verify Aki Yen Chang Wen, D.O's license?

NPPES lists California license number 20A12555, 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 Aki Yen Chang Wen, D.O prescribe under Medicare Part D?

In 2024, Aki Yen Chang Wen, D.O had 700 Medicare Part D claims for 68 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.