Benjamin Chang
Psychiatry Physician · Fontana, CA
Benjamin Chang is a psychiatry physician with a practice address in Fontana, California, and NPI 1184251365, issued on Mar 26, 2020. Check the license (California A177776, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Benjamin Chang
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A177776 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17234 Valley Blvd., Bldg. A, Fontana, CA 92335
- Phone
- (866) 205-3595
- Enumerated
- Mar 26, 2020
- Record last updated
- Oct 23, 2025
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 17234 Valley Blvd., Bldg. A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Hernandez, MDStudent in an Organized Health Care Education/Training Program1730029729
- Rahul Maini, MDChild & Adolescent Psychiatry Physician1831891803
Verify Benjamin Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A177776Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average psychiatry physician in 2024
110 Medicare Part D claims for 19 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl28 claims
- Hydroxyzine Hcl16 claims
- Mirtazapine13 claims
- Sertraline Hcl13 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.
Industry payments in 2024: $109.62
1 payment: food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Benjamin Chang among 8,673 psychiatry physician records in California
Benjamin Chang 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 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2025 · 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 Benjamin Chang's NPI number?
Benjamin Chang's National Provider Identifier (NPI) is 1184251365, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Chang located?
The NPPES record lists a practice address at 17234 Valley Blvd., Bldg. A, Fontana, CA, 92335. Phone: (866) 205-3595. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Chang's license?
NPPES lists California license number A177776, 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 Benjamin Chang prescribe under Medicare Part D?
In 2024, Benjamin Chang had 110 Medicare Part D claims for 19 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.