NPPES file of Aug 9, 2026

Ethan Geoffrey Harris, M.D.

Psychiatry Physician · Vacaville, CA

Ethan Geoffrey Harris, M.D. is a psychiatry physician with a practice address in Vacaville, California, and NPI 1124011689, issued on Aug 30, 2005. Check the license (California G18727, 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
1124011689
Name
Ethan Geoffrey Harris
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G18727 CA
Self-reported in NPPES; status is on the state search
Practice location
1119 E Monte Vista Ave, Vacaville, CA 95688
Phone
(707) 469-4610
Enumerated
Aug 30, 2005
Record last updated
Oct 7, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1119 E Monte Vista Ave

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

  1. Brent Batty, LMFTMarriage & Family Therapist1801906193
  2. Joy Castrejon, LCSWClinical Social Worker1114121308
  3. Julie Cooper, R.N.Registered Nurse1487715710
  4. Hannah Crowl, NPNurse Practitioner1932446598
  5. William Davis, M.D.Psychiatry Physician1124494646
  6. Franklyn DirisuAdult Companion1992416812

Verify Ethan Geoffrey Harris in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G18727
    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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99% fewer Medicare Part D claims than the average psychiatry physician in 2024

14 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ethan Harris14
  2. Specialty average1,000

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.

Ethan Geoffrey Harris among 8,673 psychiatry physician records in California

Ethan Geoffrey Harris, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 psychiatry physician records list a practice address in Vacaville

They are 35 of the 1,903 NPPES records with a practice address in Vacaville, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Sarah Altschuler, M.D., M.P.H.Vacaville, CA 956881134151665
  2. Arlene Brown, MDVacaville, CA 956881326127010
  3. William Davis, M.D.Vacaville, CA 956881124494646
  4. Joel Fine, MDVacaville, CA 956881467556951
  5. Amy FugleiVacaville, CA 956881760625842
  6. Julia Li, MDVacaville, CA 956881669544474
  7. Radu Mischiu, MDVacaville, CA 956881700114048
  8. Thara Nazareth, MDVacaville, CA 956881609360882

Common questions

What is Ethan Geoffrey Harris, M.D.'s NPI number?

Ethan Geoffrey Harris, M.D.'s National Provider Identifier (NPI) is 1124011689, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ethan Geoffrey Harris, M.D. located?

The NPPES record lists a practice address at 1119 E Monte Vista Ave, Vacaville, CA, 95688. Phone: (707) 469-4610. Providers update this record themselves, so call before visiting.

How can I verify Ethan Geoffrey Harris, M.D.'s license?

NPPES lists California license number G18727, 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 Ethan Geoffrey Harris, M.D. prescribe under Medicare Part D?

In 2024, Ethan Geoffrey Harris, M.D. had 14 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.