Dina Iwai, M.D.
Pediatric Critical Care Medicine Physician · Orange, CA
Dina Iwai, M.D. is a pediatric critical care medicine physician with a practice address in Orange, California, and NPI 1164516944, issued on Oct 3, 2006. Check the license (California A71762, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dina Iwai
- Credential
- M.D.
- Primary taxonomy
- Pediatric Critical Care Medicine Physician 2080P0203X
- License number
- A71762 CA
Self-reported in NPPES; status is on the state search - Practice location
- 455 S Main St, Orange, CA 92868
- Phone
- (714) 289-4511
- Enumerated
- Oct 3, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 289-4788
- Medicaid ID
- 00A717620 CA
- Medicare enrollment
- Enrolled (PECOS I20040922001083); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest pediatric critical care medicine physician records → All 337 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 Dina Iwai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
Dina Iwai among 337 pediatric critical care medicine physician records in California
Dina Iwai, M.D. is one of 337 pediatric critical care medicine physician records with a practice address in California. 39% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 64% newer
- In a Medicare fileYes · 39% of these records are
- In the CMS Doctors and Clinicians fileYes · 28% of these records are
- Graduated1998 · median 2008 among the 95 with a school on file
- Record last updated2007 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0203X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Critical Care Medicine Physician providers in California
There are 337 pediatric critical care medicine physician records in California.
All 337 in California → Every provider in Orange → Pediatric Critical Care Medicine Physician nationwide →
The 8 pediatric critical care medicine physician records with the nearest ZIP codes
- Sana Al-Jundi, M.D.Orange, CA 928681912090465
- Ronald Bronicki, M.D.Orange, CA 928681548354533
- James Cappon, M.D.Orange, CA 928681336232875
- Anthony Cherin, M.D.Orange, CA 928681831283837
- Jason Cook, MDOrange, CA 928681689775140
- Michele Domico, MDOrange, CA 928681932305000
- Gary Goodman, M.D.Orange, CA 928681588758551
- Mehrdad Jalili, MDOrange, CA 928681811077084
Common questions
What is Dina Iwai, M.D.'s NPI number?
Dina Iwai, M.D.'s National Provider Identifier (NPI) is 1164516944, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dina Iwai, M.D. located?
The NPPES record lists a practice address at 455 S Main St, Orange, CA, 92868. Phone: (714) 289-4511. Providers update this record themselves, so call before visiting.
How can I verify Dina Iwai, M.D.'s license?
NPPES lists California license number A71762, 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.
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.