Philip Chaotsai Chien, M.D.
Pediatrics Physician · San Bernardino, CA
Philip Chaotsai Chien, M.D. is a pediatrics physician with a practice address in San Bernardino, California, and NPI 1205885985, issued on May 9, 2006. Check the license (California A37418, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Philip Chaotsai Chien
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A37418 CA
Self-reported in NPPES; status is on the state search - Practice location
- 355 E 21St St, San Bernardino, CA 92404
- Phone
- (909) 882-1721
- Enumerated
- May 9, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (909) 882-1722
- Medicaid ID
- 00A374180 CA
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 355 E 21St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Best, PA-CPhysician Assistant1063969293
- Sheldon Borson, PHARMDPharmacist1427818194
- Emily Bradford-Lewis, FNPFamily Nurse Practitioner1205958840
- Jo FlanaganSpecialist1376541037
- Marvin Fong, PHARM DPharmacist1134583487
- John Vo, M.D.Pediatrics Physician1851473557
Verify Philip Chaotsai Chien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A37418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Philip Chaotsai Chien among 9,272 pediatrics physician records in California
Philip Chaotsai Chien, 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 not. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2007 · 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).
Pediatrics Physician providers in California
There are 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in San Bernardino → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Kofi Adade-Boafo, M.D.San Bernardino, CA 924041003898792
- Roshanda Clemons, MDSan Bernardino, CA 924041922237916
- Roshunda Coleman, M.D.San Bernardino, CA 924041639400708
- Kelly Jeu, MDSan Bernardino, CA 924041497288724
- Swapna Kudtarkar, M.D.San Bernardino, CA 924041104939172
- Ngoc Nguyen, M.D.San Bernardino, CA 924041568691293
- Cynthia OlatunjiSan Bernardino, CA 924041710506084
- John Vo, M.D.San Bernardino, CA 924041851473557
Common questions
What is Philip Chaotsai Chien, M.D.'s NPI number?
Philip Chaotsai Chien, M.D.'s National Provider Identifier (NPI) is 1205885985, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Philip Chaotsai Chien, M.D. located?
The NPPES record lists a practice address at 355 E 21St St, San Bernardino, CA, 92404. Phone: (909) 882-1721. Providers update this record themselves, so call before visiting.
How can I verify Philip Chaotsai Chien, M.D.'s license?
NPPES lists California license number A37418, 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. 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.