Helen Eve Duncan, M.D.
Psychiatry Physician · Arcadia, CA
Helen Eve Duncan, M.D. is a psychiatry physician with a practice address in Arcadia, California, and NPI 1194807347, issued on Oct 19, 2006. Check the license (California G067723, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Helen Eve Duncan
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G067723 CA
Self-reported in NPPES; status is on the state search - Practice location
- 301 W. Huntington Dr., Arcadia, CA 91007
- Phone
- (626) 445-7430
- Enumerated
- Oct 19, 2006
- Record last updated
- Feb 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (626) 445-7436
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Helen Eve Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G067723Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
37 Medicare Part D claims for 21 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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.
Helen Eve Duncan among 8,673 psychiatry physician records in California
Helen Eve Duncan, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2020 · 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).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Arcadia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Siqing Li, M.D.Arcadia, CA 910071942243910
- Jesse Li, MDArcadia, CA 910071912468802
- Gayane Aghakhanyan, M.DArcadia, CA 910061063793255
- Marita CristobalArcadia, CA 910061073688628
- Edgar Drew, M.D.Arcadia, CA 910061841351475
- David Gavel, M.D.Arcadia, CA 910061457549693
- Gregory Gorski, M.D.Arcadia, CA 910061780753400
- Jae Kim, M.D.Arcadia, CA 910061487073607
Common questions
What is Helen Eve Duncan, M.D.'s NPI number?
Helen Eve Duncan, M.D.'s National Provider Identifier (NPI) is 1194807347, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Helen Eve Duncan, M.D. located?
The NPPES record lists a practice address at 301 W. Huntington Dr., Arcadia, CA, 91007. Phone: (626) 445-7430. Providers update this record themselves, so call before visiting.
How can I verify Helen Eve Duncan, M.D.'s license?
NPPES lists California license number G067723, 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 Helen Eve Duncan, M.D. prescribe under Medicare Part D?
In 2024, Helen Eve Duncan, M.D. had 37 Medicare Part D claims for 21 beneficiaries; 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.