Linna Duan, MD
Psychiatry Physician · San Jose, CA
Linna Duan, MD is a psychiatry physician with a practice address in San Jose, California, and NPI 1831777481, issued on Apr 1, 2021. Check the license (California PTL6568, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Linna Duan
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- PTL6568 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1922 The Alameda Ste 316, San Jose, CA 95126
- Phone
- (408) 261-7777
- Enumerated
- Apr 1, 2021
- Record last updated
- Oct 12, 2023
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1922 The Alameda Ste 316
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda AllenMental Health Counselor1518335074
- Linda ConnerSocial Worker1316202864
- Lorenzo FosselmanRehabilitation Practitioner1235073321
- Yamadou KeitaRehabilitation Practitioner1518893395
- Kennya Rodriguez, MSWCommunity Health Worker1548148372
- Samuel SalgadoRehabilitation Practitioner1043905276
Verify Linna Duan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license PTL6568Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average psychiatry physician in 2024
483 Medicare Part D claims for 215 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Sertraline Hcl47 claims
- Gabapentin35 claims
- Mirtazapine35 claims
- Lorazepam23 claims
- Olanzapine22 claims
- Trazodone Hcl21 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.
Linna Duan among 8,673 psychiatry physician records in California
Linna Duan, MD 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 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2023 · 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 San Jose → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Hao Duong, M.D.San Jose, CA 951261952446304
- Emanuel Frank, M.D.San Jose, CA 951261982746822
- Justin Grey, MDSan Jose, CA 951261992898753
- Michael Huynh, M.D.San Jose, CA 951261699065342
- Franz Kaiser, M.D.San Jose, CA 951261801075361
- Stuart Krigel, M.D.San Jose, CA 951261437199866
- Rachel Lapidus, M.D., MPHSan Jose, CA 951261093944019
- Elaine Lu, M.D.San Jose, CA 951261649590258
Common questions
What is Linna Duan, MD's NPI number?
Linna Duan, MD's National Provider Identifier (NPI) is 1831777481, issued on Apr 1, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Linna Duan, MD located?
The NPPES record lists a practice address at 1922 The Alameda Ste 316, San Jose, CA, 95126. Phone: (408) 261-7777. Providers update this record themselves, so call before visiting.
How can I verify Linna Duan, MD's license?
NPPES lists California license number PTL6568, 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 Linna Duan, MD prescribe under Medicare Part D?
In 2024, Linna Duan, MD had 483 Medicare Part D claims for 215 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.