Han Ngoc Dinh, D.O.
Psychiatry Physician · Fontana, CA
Han Ngoc Dinh, D.O. is a psychiatry physician with a practice address in Fontana, California, and NPI 1891106464, issued on May 16, 2014. Check the license (California 20A14663, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Han Ngoc Dinh
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 20A14663 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-5603
- Enumerated
- May 16, 2014
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (909) 427-5312
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Adair, MDFamily Medicine Physician1780732651
- Berneva Adams, MDObstetrics & Gynecology Physician1376602987
Verify Han Ngoc Dinh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14663Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average psychiatry physician in 2024
379 Medicare Part D claims for 74 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clozapine39 claims
- Aripiprazole19 claims
- Quetiapine Fumarate19 claims
- Hydroxyzine Hcl18 claims
- Buspirone Hcl17 claims
- Trazodone Hcl15 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.
Han Ngoc Dinh among 8,673 psychiatry physician records in California
Han Ngoc Dinh, D.O. 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 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 26% 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).
38 psychiatry physician records list a practice address in Fontana
They are 38 of the 3,012 NPPES records with a practice address in Fontana, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Fontana → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Karen Baghamian, MDFontana, CA 923351730237660
- Kalika Chander, MDFontana, CA 923351225197882
- Jeffrey Cheng, MDFontana, CA 923351801944822
- Natasha Cortes, D.O.Fontana, CA 923351588074090
- Jeffrey Davis, MDFontana, CA 923351912055849
- Jasvinder Kaur, MDFontana, CA 923351841359403
- Jeong KimFontana, CA 923351326270224
- Harry Lewis, MDFontana, CA 923351386703049
Common questions
What is Han Ngoc Dinh, D.O.'s NPI number?
Han Ngoc Dinh, D.O.'s National Provider Identifier (NPI) is 1891106464, issued on May 16, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Han Ngoc Dinh, D.O. located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-5603. Providers update this record themselves, so call before visiting.
How can I verify Han Ngoc Dinh, D.O.'s license?
NPPES lists California license number 20A14663, 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 Han Ngoc Dinh, D.O. prescribe under Medicare Part D?
In 2024, Han Ngoc Dinh, D.O. had 379 Medicare Part D claims for 74 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.