NPPES file of Aug 9, 2026

Douglas G. Farmer, MD

Transplant Surgery Physician · Los Angeles, CA

Douglas G. Farmer, MD is a transplant surgery physician with a practice address in Los Angeles, California, and NPI 1679508923, issued on Jul 12, 2006. Check the license (California A49584, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679508923
Name
Douglas G. Farmer
Credential
MD
Primary taxonomy
Transplant Surgery Physician 204F00000X
License number
A49584 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Ucla Medical Plz Ste 214, Los Angeles, CA 90095
Phone
(310) 267-9612
Enumerated
Jul 12, 2006
Record last updated
Dec 30, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(310) 206-4197
Medicaid ID
00A495840 CA
Medicare enrollment
Enrolled (PECOS I20061213000645); accepts Medicare assignment
Medical or professional school
Duke University School Of Medicine, 1989
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 200 Ucla Medical Plz Ste 214

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

  1. Danica Adkins, NPAcute Care Nurse Practitioner1306243860
  2. Sherona Bau, N.P.Acute Care Nurse Practitioner1902056062
  3. Simon Beaven, MDInternal Medicine Physician1205018967
  4. Ronald Busuttil, MDTransplant Surgery Physician1639103906
  5. Sabrinah ChristieSurgery Physician1154625440
  6. Erin Colantuono, NPAcute Care Nurse Practitioner1922436500

Verify Douglas G. Farmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license A49584
    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
Find the California license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 94.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score61.7
  2. Costout of 100 · 30%87.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $178.61

5 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 524 providers of this specialty with any payment received $3,913.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Douglas Farmer$178.61
  2. Specialty average$3,913.05

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. The Regents OF The University OF CaliforniaLos Angeles, CA

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

Douglas G. Farmer among 71 transplant surgery physician records in California

Douglas G. Farmer, MD is one of 71 transplant surgery physician records with a practice address in California. 85% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 54% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1989 · median 2000 among the 55 with a school on file
  • Record last updated2019 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 204F00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Transplant Surgery Physician providers in California

There are 71 transplant surgery physician records in California.

The 8 transplant surgery physician records with the nearest ZIP codes

  1. Ronald Busuttil, MDLos Angeles, CA 900951639103906
  2. Christopher Chandler, MDLos Angeles, CA 900951538553979
  3. Jonathan Hiatt, MDLos Angeles, CA 900951912929670
  4. Fady Kaldas, M.D.Los Angeles, CA 900951700050598
  5. Gerald Lipshutz, MDLos Angeles, CA 900951649205543
  6. Amy McClune, M.D.Los Angeles, CA 900951265658959
  7. Henrik Petrowsky, MDLos Angeles, CA 900951881886927
  8. Emma Crichton, M.D., M.P.H.West Hollywood, CA 900481225561434

Common questions

What is Douglas G. Farmer, MD's NPI number?

Douglas G. Farmer, MD's National Provider Identifier (NPI) is 1679508923, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Douglas G. Farmer, MD located?

The NPPES record lists a practice address at 200 Ucla Medical Plz Ste 214, Los Angeles, CA, 90095. Phone: (310) 267-9612. Providers update this record themselves, so call before visiting.

How can I verify Douglas G. Farmer, MD's license?

NPPES lists California license number A49584, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Douglas G. Farmer, MD's MIPS final score?

The 2023 MIPS final score is 94.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.