Longhang Nguyen, MD
Internal Medicine Physician · Sunnyvale, CA
Longhang Nguyen, MD is an internal medicine physician with a practice address in Sunnyvale, California, and NPI 1194894550, issued on Nov 7, 2006. Check the license (California A67978, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Longhang Nguyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A67978 CA
Self-reported in NPPES; status is on the state search - Practice location
- 312 W EL Camino Real, Sunnyvale, CA 94087
- Phone
- (888) 663-6331
- Enumerated
- Nov 7, 2006
- Record last updated
- Mar 17, 2025
- Fax
- (415) 252-7176
- Medicaid ID
- 00A679780 CA
- Medicare enrollment
- Enrolled (PECOS I20081226000007); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 312 W EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abigail Brittain, PA-CPhysician Assistant1578852752
- Kevin Fell, MDFamily Medicine Physician1215990494
- Victoria Ho, M.D.Family Medicine Physician1487219523
- Tanya Hoang, MSN, FNP-CNurse Practitioner1053764704
- Rajeshwari Nagaraja, M.DFamily Medicine Physician1932495777
- Subrina Sattar, M.D.Internal Medicine Physician1184074841
Verify Longhang Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A67978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
329 Medicare Part D claims for 36 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium36 claims
- Lisinopril20 claims
- Amlodipine Besylate19 claims
- Eliquis14 claims
- Rosuvastatin Calcium14 claims
- Metformin Hcl13 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
- One Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Longhang Nguyen among 17,696 internal medicine physician records in California
Longhang 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1997 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
48 internal medicine physician records list a practice address in Sunnyvale
They are 48 of the 1,690 NPPES records with a practice address in Sunnyvale, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sunnyvale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Anne Cole, M.D.Sunnyvale, CA 940871922188945
- David Feinstein, MDSunnyvale, CA 940871609810597
- Andrew Lin, MDSunnyvale, CA 940871679635254
- Seema Sangwan, M.D.Sunnyvale, CA 940871952370900
- Subrina Sattar, M.D.Sunnyvale, CA 940871184074841
- Surekha Vetsa, M.DSunnyvale, CA 940871184650871
- Zubia Ahmad, MDSunnyvale, CA 940861265879522
- Syed Salman Ali, MDSunnyvale, CA 940861740621671
Common questions
What is Longhang Nguyen, MD's NPI number?
Longhang Nguyen, MD's National Provider Identifier (NPI) is 1194894550, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Longhang Nguyen, MD located?
The NPPES record lists a practice address at 312 W EL Camino Real, Sunnyvale, CA, 94087. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.
How can I verify Longhang Nguyen, MD's license?
NPPES lists California license number A67978, 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 Longhang Nguyen, MD prescribe under Medicare Part D?
In 2024, Longhang Nguyen, MD had 329 Medicare Part D claims for 36 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.