Richard C. Chang, M.D.
Pediatrics Physician · Orange, CA
Richard C. Chang, M.D. is a pediatrics physician with a practice address in Orange, California, and NPI 1043317910, issued on Sep 20, 2006. Check the license (California A82661, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard C. Chang
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A82661 CA
Self-reported in NPPES; status is on the state search - Practice location
- 455 S Main St, Orange, CA 92868
- Phone
- (714) 532-8852
- Enumerated
- Sep 20, 2006
- Record last updated
- Mar 13, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (714) 532-8362
- Medicaid ID
- 00A826610 CA
- Medicare enrollment
- Enrolled (PECOS I20050901000934); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 455 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jose Abdenur, M.D.Clinical Biochemical Genetics Physician1154428027
- Eileen Abejar, PNPPediatric Nurse Practitioner1083865042
- Felice Adler-Shohet, M.D.Pediatric Infectious Diseases Physician1962513051
- Irfan Ahmad, MDNeonatal-Perinatal Medicine Physician1699790139
- Sana Al-Jundi, M.D.Pediatric Critical Care Medicine Physician1912090465
- Ragnar Amlie, M.D.Neonatal-Perinatal Medicine Physician1972696433
Verify Richard C. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A82661Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average pediatrics physician in 2024
62 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Carnitor12 claims
- Levocarnitine12 claims
- Metronidazole11 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: $1,455.94
12 payments; by number, the most common kind was food and beverage; the largest payer was ModernaTX, Inc. The 21,580 providers of this specialty with any payment received $842.05 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
- Childrens Hospital OF Orange CountyOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard C. Chang among 9,272 pediatrics physician records in California
Richard C. Chang, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated2001 · median 2012 among the 754 with a school on file
- Record last updated2012 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
229 pediatrics physician records list a practice address in Orange
They are 229 of the 13,245 NPPES records with a practice address in Orange, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Orange → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Angela Allevato, M.D.Orange, CA 928681588609382
- Katherine Andreeff, M.D.Orange, CA 928681295827939
- Jeffrey Armstrong, M.D.Orange, CA 928681376641548
- Donald Bendig, M.D.Orange, CA 928681952409138
- Sophia Jones, M.D. PH.D.Orange, CA 928681184637308
- James Korb, MDOrange, CA 928681194735076
- Sheldon Nankin, MDOrange, CA 928681235124322
- Thanhtam Nguyen, MDOrange, CA 928681922049527
Common questions
What is Richard C. Chang, M.D.'s NPI number?
Richard C. Chang, M.D.'s National Provider Identifier (NPI) is 1043317910, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard C. Chang, M.D. located?
The NPPES record lists a practice address at 455 S Main St, Orange, CA, 92868. Phone: (714) 532-8852. Providers update this record themselves, so call before visiting.
How can I verify Richard C. Chang, M.D.'s license?
NPPES lists California license number A82661, 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 Richard C. Chang, M.D. prescribe under Medicare Part D?
In 2024, Richard C. Chang, M.D. had 62 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.