Long H. Nguyen, M.D.
Emergency Medicine Physician · Del Mar, CA
Long H. Nguyen, M.D. is an emergency medicine physician with a practice address in Del Mar, California, and NPI 1538315981, issued on Aug 15, 2008. Check the license (California A 98451, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Long H. Nguyen
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A 98451 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3043 Racetrack View Dr, Del Mar, CA 92014
- Phone
- (858) 869-5273
- Enumerated
- Aug 15, 2008
- Record last updated
- Sep 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 1538315981 CA
- Medicare enrollment
- Enrolled (PECOS I20180223001683); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2005
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Long H. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A 98451Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average emergency medicine physician in 2024
200 Medicare Part D claims for 117 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Ondansetron Odt20 claims
- Hydrocodone-Acetaminophen13 claims
- Acetaminophen-Codeine11 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.
Bills Medicare through one group practice
- Hospitalist Medicine Physicians OF New Mexico - Clovis LLCHobbs, NM
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Long H. Nguyen among 7,751 emergency medicine physician records in California
Long H. Nguyen, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2011 among the 4,560 with a school on file
- Record last updated2010 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Del Mar → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- William Bowen, M.B.B.S.Del Mar, CA 920141952693467
- William Hinrichs, M.D.Carlsbad, CA 920091053305870
- John Serra, M.D.Carlsbad, CA 920091215111380
- Kelsey Burson, DOCarlsbad, CA 920081609437136
- Tamara Hoover, M.D.El Cajon, CA 920211104836519
- Daniel Huhn, MDEl Cajon, CA 920211285610618
- Jack Wolfe, M.D.El Cajon, CA 920211417055948
- Steven Andree, M.D.Encinitas, CA 920241700886496
Common questions
What is Long H. Nguyen, M.D.'s NPI number?
Long H. Nguyen, M.D.'s National Provider Identifier (NPI) is 1538315981, issued on Aug 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Long H. Nguyen, M.D. located?
The NPPES record lists a practice address at 3043 Racetrack View Dr, Del Mar, CA, 92014. Phone: (858) 869-5273. Providers update this record themselves, so call before visiting.
How can I verify Long H. Nguyen, M.D.'s license?
NPPES lists California license number A 98451, 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 Long H. Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Long H. Nguyen, M.D. had 200 Medicare Part D claims for 117 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.