Hoanglong Tien Nguyen, MD
Internal Medicine Physician · Sylmar, CA
Hoanglong Tien Nguyen, MD is an internal medicine physician with a practice address in Sylmar, California, and NPI 1164715736, issued on May 16, 2011. Check the license (California A130677, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hoanglong Tien Nguyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A130677 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14445 Olive View Dr, Sylmar, CA 91342
- Phone
- (818) 364-3205
- Enumerated
- May 16, 2011
- Record last updated
- Dec 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 14445 Olive View Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gezman Abdullahi, M.D.Internal Medicine Physician1225394380
- Moyosore Abere, NPNurse Practitioner1225667314
- Ammini Abraham, MDAnesthesiology Physician1467531541
- Margarita Acosta, RN, AGACNPAcute Care Nurse Practitioner1609202415
- Fredric Adler, MDInternal Medicine Physician1356376735
Verify Hoanglong Tien Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A130677Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
67 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 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.
Hoanglong Tien Nguyen among 17,696 internal medicine physician records in California
Hoanglong Tien Nguyen, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
102 internal medicine physician records list a practice address in Sylmar
They are 102 of the 1,454 NPPES records with a practice address in Sylmar, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sylmar → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fredric Adler, MDSylmar, CA 913421356376735
- Janet Au, MDSylmar, CA 913421932126570
- Peter Balingit, MDSylmar, CA 913421114952264
- Andrea Cooperman, MDSylmar, CA 913421326134560
- Basem Fanous, MDSylmar, CA 913421619072600
- Emil Heinze, MDSylmar, CA 913421720175052
- Miles Jakl, M.D.Sylmar, CA 913421992738306
- Luis Lovato, M.D.Sylmar, CA 913421407945678
Common questions
What is Hoanglong Tien Nguyen, MD's NPI number?
Hoanglong Tien Nguyen, MD's National Provider Identifier (NPI) is 1164715736, issued on May 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Hoanglong Tien Nguyen, MD located?
The NPPES record lists a practice address at 14445 Olive View Dr, Sylmar, CA, 91342. Phone: (818) 364-3205. Providers update this record themselves, so call before visiting.
How can I verify Hoanglong Tien Nguyen, MD's license?
NPPES lists California license number A130677, 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 Hoanglong Tien Nguyen, MD prescribe under Medicare Part D?
In 2024, Hoanglong Tien Nguyen, MD had 67 Medicare Part D claims for 24 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.