Johnson Chiu, MD
Hospitalist Physician · Orange, CA
Johnson Chiu, MD is a hospitalist physician with a practice address in Orange, California, and NPI 1356412241, issued on Nov 13, 2006. Check the license (California A87164, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Johnson Chiu
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A87164 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1310 W Stewart Dr, Orange, CA 92868
- Phone
- (714) 639-9401
- Enumerated
- Nov 13, 2006
- Record last updated
- Oct 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (714) 639-4105
- Medicaid ID
- 00A871640 CA
- Medicare enrollment
- Enrolled (PECOS I20050110000674); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 1310 W Stewart Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Allan Akerman, M.D.Obstetrics & Gynecology Physician1396714184
- Quincy Almond, M.D.Hospitalist Physician1578573697
- Afshin Aminian, M.D.Specialist1609805910
- Lars Anker, MDNeurological Surgery Physician1962548537
- Shawn Beck, M.D.Urology Physician1669661849
Verify Johnson Chiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87164Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average hospitalist physician in 2024
388 Medicare Part D claims for 187 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Atorvastatin Calcium17 claims
- Pantoprazole Sodium17 claims
- Furosemide16 claims
- Losartan Potassium16 claims
- Metronidazole15 claims
- Cefuroxime13 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: $75.04
3 payments; by number, the most common kind was food and beverage; the largest payer was Scpharmaceuticals Inc. The 7,324 providers of this specialty with any payment received $494.84 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.
Bills Medicare through one group practice
- Providence Medical FoundationOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johnson Chiu among 3,099 hospitalist physician records in California
Johnson Chiu, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% 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, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2001 · median 2010 among the 2,505 with a school on file
- Record last updated2020 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Orange → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Quincy Almond, M.D.Orange, CA 928681578573697
- Alpesh Amin, MDOrange, CA 928681457394801
- Sean Amos, M.D.Orange, CA 928681992715007
- Andrea Avery, MDOrange, CA 928681144300229
- Amish Dangodara, MDOrange, CA 928681093895195
- Israel De Alba, MDOrange, CA 928681639259732
- Dang Khoa T Duong, MDOrange, CA 928681346320488
- Diego Gonzalez, M.D.Orange, CA 928681326058371
Common questions
What is Johnson Chiu, MD's NPI number?
Johnson Chiu, MD's National Provider Identifier (NPI) is 1356412241, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Johnson Chiu, MD located?
The NPPES record lists a practice address at 1310 W Stewart Dr, Orange, CA, 92868. Phone: (714) 639-9401. Providers update this record themselves, so call before visiting.
How can I verify Johnson Chiu, MD's license?
NPPES lists California license number A87164, 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 Johnson Chiu, MD prescribe under Medicare Part D?
In 2024, Johnson Chiu, MD had 388 Medicare Part D claims for 187 beneficiaries; the average among hospitalist physician prescribers was 521. 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.