NPPES file of Aug 9, 2026

Andrew Wonho Choi, MD

Dermatology Physician · San Diego, CA

Andrew Wonho Choi, MD is a dermatology physician with a practice address in San Diego, California, and NPI 1033500798, issued on Feb 16, 2015. Check the license (California A163912, 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
1033500798
Name
Andrew Wonho Choi
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A163912 CA
Self-reported in NPPES; status is on the state search
Practice location
8899 University Center LN Ste 350, San Diego, CA 92122
Phone
(858) 657-8322
Enumerated
Feb 16, 2015
Record last updated
Sep 21, 2023
Medicare enrollment
Enrolled (PECOS I20221112000136); 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 8899 University Center LN Ste 350

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

  1. Maryam Afshar, M.D.Dermatology Physician1992063036
  2. Pamela Chayavichitsilp, MDDermatology Physician1588898811
  3. Selena Chen, MDDermatology Physician1669222741
  4. Lena Chu, MDStudent in an Organized Health Care Education/Training Program1417625831
  5. Raj Fadadu, MD, MSStudent in an Organized Health Care Education/Training Program1043915028
  6. Sophia Hadsall, MDStudent in an Organized Health Care Education/Training Program1245932524

Verify Andrew Wonho Choi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A163912
    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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82% more Medicare Part D claims than the average dermatology physician in 2024

1,451 Medicare Part D claims for 478 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Andrew Choi1,451
  2. Specialty average797

Most prescribed

  1. Ketoconazole224 claims
  2. Triamcinolone Acetonide211 claims
  3. Clobetasol Propionate115 claims
  4. Fluocinonide98 claims
  5. Fluorouracil92 claims
  6. Hydrocortisone57 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: $22.54

1 payment: food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Choi$22.54
  2. Specialty average$8,544.61

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. Southern California Permanente Medical GroupSan Dimas, CA

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

Andrew Wonho Choi among 2,083 dermatology physician records in California

Andrew Wonho Choi, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 77% of them.

  • NPI issued2015 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2018 · median 2006 among the 1,450 with a school on file
  • Record last updated2023 · 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 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in California

There are 2,083 dermatology physician records in California.

The 8 dermatology physician records with the nearest ZIP codes

  1. Maryam Afshar, M.D.San Diego, CA 921221992063036
  2. Pamela Chayavichitsilp, MDSan Diego, CA 921221588898811
  3. Selena Chen, MDSan Diego, CA 921221669222741
  4. Ogechi Ikediobi, MD, PHDSan Diego, CA 921221639448269
  5. Swati Kannan, M.D.San Diego, CA 921221508155227
  6. Dianne Michelle Lumaquin-Yin, MD, PHDSan Diego, CA 921221649039033
  7. Mona Mofid, M.D.San Diego, CA 921221730167677
  8. Charisse Orme, MD, PHDSan Diego, CA 921221861767097

Common questions

What is Andrew Wonho Choi, MD's NPI number?

Andrew Wonho Choi, MD's National Provider Identifier (NPI) is 1033500798, issued on Feb 16, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Wonho Choi, MD located?

The NPPES record lists a practice address at 8899 University Center LN Ste 350, San Diego, CA, 92122. Phone: (858) 657-8322. Providers update this record themselves, so call before visiting.

How can I verify Andrew Wonho Choi, MD's license?

NPPES lists California license number A163912, 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 Andrew Wonho Choi, MD prescribe under Medicare Part D?

In 2024, Andrew Wonho Choi, MD had 1,451 Medicare Part D claims for 478 beneficiaries; the average among dermatology physician prescribers was 797. 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.