Tiffany Y. Sui
Psychiatry Physician · Fremont, CA
Tiffany Y. Sui is a psychiatry physician with a practice address in Fremont, California, and NPI 1912466723, issued on Mar 19, 2019. Check the license (California 177612, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tiffany Y. Sui
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 177612 CA
Self-reported in NPPES; status is on the state search - Practice location
- 39350 Civic Center Dr, Fremont, CA 94538
- Phone
- (510) 494-4000
- Enumerated
- Mar 19, 2019
- Record last updated
- Feb 1, 2024
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 39350 Civic Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Trinh Bui DuCounselor1164088746
- Maureen Gatt, PH.D.Clinical Psychologist1255531034
- Aldrin Geronga, F.N.P.Nurse Practitioner1285062257
- Lindsey HodosMental Health Counselor1205339835
- Rodney HonradaMarriage & Family Therapist1861297210
- Hannah JoharchiPsychologist1043866494
Verify Tiffany Y. Sui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 177612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average psychiatry physician in 2024
207 Medicare Part D claims for 73 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Trazodone Hcl24 claims
- Quetiapine Fumarate18 claims
- Olanzapine17 claims
- Bupropion Xl15 claims
- Gabapentin11 claims
- Sertraline Hcl11 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.
Tiffany Y. Sui among 8,673 psychiatry physician records in California
Tiffany Y. Sui 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2024 · 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 Fremont → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Harmohinder Athwal, MDFremont, CA 945381740298256
- Charles Barton, M.D.Fremont, CA 945381881688505
- Harpreet Duggal, M.D.Fremont, CA 945381194776021
- John Engers, M.D.Fremont, CA 945381083641864
- Shareh Ghani, MDFremont, CA 945381366520488
- Evelyn Hazlett, MDFremont, CA 945381437234119
- Naureen Khan, MDFremont, CA 945381023180841
- Pradeep Kumar, MDFremont, CA 945381023188935
Common questions
What is Tiffany Y. Sui's NPI number?
Tiffany Y. Sui's National Provider Identifier (NPI) is 1912466723, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Y. Sui located?
The NPPES record lists a practice address at 39350 Civic Center Dr, Fremont, CA, 94538. Phone: (510) 494-4000. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Y. Sui's license?
NPPES lists California license number 177612, 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 Tiffany Y. Sui prescribe under Medicare Part D?
In 2024, Tiffany Y. Sui had 207 Medicare Part D claims for 73 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.