Nam Si Dong, M.D.
Pediatrics Physician · Westminster, CA
Nam Si Dong, M.D. is a pediatrics physician with a practice address in Westminster, California, and NPI 1508968223, issued on Sep 2, 2006. Check the license (California A36978, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nam Si Dong
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A36978 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14082 Magnolia St Ste 111, Westminster, CA 92683
- Phone
- (714) 898-0424
- Enumerated
- Sep 2, 2006
- Record last updated
- Mar 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (714) 459-7325
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Verify Nam Si Dong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A36978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average pediatrics physician in 2024
21 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
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.
Nam Si Dong among 9,272 pediatrics physician records in California
Nam Si Dong, 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 fileNo · 8% of these records are
- Record last updated2013 · 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).
13 pediatrics physician records list a practice address in Westminster
They are 13 of the 1,306 NPPES records with a practice address in Westminster, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Westminster → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Bup Dao, M.D.Westminster, CA 926831801984596
- Minh Hoang, MDWestminster, CA 926831316974561
- Cam Le, M.D.Westminster, CA 926831396831210
- Michelle Le-Pugeda, M.D.Westminster, CA 926831275821332
- Marianne Nguyen, MDWestminster, CA 926831700863644
- Loc Nguyen, MDWestminster, CA 926831568499630
- Thao Nguyen, MDWestminster, CA 926831831126036
- Huy Nguyen, MDWestminster, CA 926831144378050
Common questions
What is Nam Si Dong, M.D.'s NPI number?
Nam Si Dong, M.D.'s National Provider Identifier (NPI) is 1508968223, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nam Si Dong, M.D. located?
The NPPES record lists a practice address at 14082 Magnolia St Ste 111, Westminster, CA, 92683. Phone: (714) 898-0424. Providers update this record themselves, so call before visiting.
How can I verify Nam Si Dong, M.D.'s license?
NPPES lists California license number A36978, 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 Nam Si Dong, M.D. prescribe under Medicare Part D?
In 2024, Nam Si Dong, M.D. had 21 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.