NPPES file of Aug 9, 2026

Derjung Tarn

Family Medicine Physician · Santa Monica, CA

Derjung Tarn is a family medicine physician with a practice address in Santa Monica, California, and NPI 1235153040, issued on Jul 26, 2006. Check the license (California A72710, 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
1235153040
Name
Derjung Tarn
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A72710 CA
Self-reported in NPPES; status is on the state search
Practice location
1920 Colorado Ave, Santa Monica, CA 90404
Phone
(310) 319-4700
Enumerated
Jul 26, 2006
Record last updated
Feb 17, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(310) 794-6097
Medicaid ID
00A727100 CA
Medicare enrollment
Enrolled (PECOS I20090707000528); accepts Medicare assignment
Medical or professional school
New York Medical College, 1999
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 1920 Colorado Ave

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

  1. Meron Abreham, MDFamily Medicine Physician1003494253
  2. Anne Arikian, M.D.Family Medicine Physician1144321522
  3. Junun Bae, DOGeriatric Medicine (Family Medicine) Physician1598384901
  4. Michael Baham, MDStudent in an Organized Health Care Education/Training Program1528860038
  5. David BalesStudent in an Organized Health Care Education/Training Program1447953906
  6. Andrea Banuelos Mota, MDStudent in an Organized Health Care Education/Training Program1184201006

Verify Derjung Tarn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A72710
    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

508 Medicare Part D claims for 51 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Derjung Tarn508
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium62 claims
  2. Amlodipine Besylate55 claims
  3. Rosuvastatin Calcium44 claims
  4. Metoprolol Succinate27 claims
  5. Hydrochlorothiazide22 claims
  6. Lisinopril19 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: $78.86

3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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. Derjung Tarn$78.86
  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. UC RegentsSanta Monica, CA

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

Derjung Tarn among 17,133 family medicine physician records in California

Derjung Tarn 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1999 · median 2005 among the 10,652 with a school on file
  • Record last updated2010 · 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).

192 family medicine physician records list a practice address in Santa Monica

They are 192 of the 5,151 NPPES records with a practice address in Santa Monica, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Caroline Close, MDSanta Monica, CA 904041467497024
  2. Lawrence Dardick, MDSanta Monica, CA 904041740200138
  3. Lillian Gelberg, MDSanta Monica, CA 904041639192487
  4. Benjamin GilmoreSanta Monica, CA 904041396770178
  5. Raouf Hallis, MDSanta Monica, CA 904041386688687
  6. Mary Marfisee, M.D.Santa Monica, CA 904041700829934
  7. James Murray, MDSanta Monica, CA 904041659307452
  8. Michael Nagata, MDSanta Monica, CA 904041124054184

Common questions

What is Derjung Tarn's NPI number?

Derjung Tarn's National Provider Identifier (NPI) is 1235153040, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Derjung Tarn located?

The NPPES record lists a practice address at 1920 Colorado Ave, Santa Monica, CA, 90404. Phone: (310) 319-4700. Providers update this record themselves, so call before visiting.

How can I verify Derjung Tarn's license?

NPPES lists California license number A72710, 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 Derjung Tarn prescribe under Medicare Part D?

In 2024, Derjung Tarn had 508 Medicare Part D claims for 51 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.