Duc Marcel Nguyen, MD
Specialist · Redwood City, CA
Duc Marcel Nguyen, MD is a specialist with a practice address in Redwood City, California, and NPI 1013013416, issued on Sep 15, 2006. Check the license (California G56493, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Duc Marcel Nguyen
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- G56493 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Whipple Ave, Redwood City, CA 94062
- Phone
- (650) 365-5996
- Enumerated
- Sep 15, 2006
- Record last updated
- Jun 30, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (650) 365-0655
- Medicare enrollment
- Enrolled (PECOS I20100304000820); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 2900 Whipple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Duc Marcel Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G56493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average specialist in 2024
296 Medicare Part D claims for 125 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 79 claims were for opioids.
Most prescribed
- Naproxen76 claims
- Meloxicam39 claims
- Methylprednisolone36 claims
- Hydrocodone-Acetaminophen34 claims
- Ibuprofen30 claims
- Oxycodone-Acetaminophen22 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $77.78
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- County OF San MateoSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Duc Marcel Nguyen among 5,749 specialist records in California
Duc Marcel Nguyen, MD is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1982 · median 1989 among the 1,075 with a school on file
- Record last updated2016 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Redwood City → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Lewis Feiler, M.D.Redwood City, CA 940621457368649
- Melissa Lim, M.D.Redwood City, CA 940621013910777
- Angela Lindsay, R.N.C., N.P.Redwood City, CA 940621972555654
- Sherna Madan, MDRedwood City, CA 940621134242753
- Anthony Nicoletti, P.T.Redwood City, CA 940621043258965
- Nasiha RahmanRedwood City, CA 940621467776971
- Ann Vu-Nguyen, F.N.P.Redwood City, CA 940621962454637
- Anthony BautistaRedwood City, CA 940631801059746
Common questions
What is Duc Marcel Nguyen, MD's NPI number?
Duc Marcel Nguyen, MD's National Provider Identifier (NPI) is 1013013416, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Duc Marcel Nguyen, MD located?
The NPPES record lists a practice address at 2900 Whipple Ave, Redwood City, CA, 94062. Phone: (650) 365-5996. Providers update this record themselves, so call before visiting.
How can I verify Duc Marcel Nguyen, MD's license?
NPPES lists California license number G56493, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Duc Marcel Nguyen, MD prescribe under Medicare Part D?
In 2024, Duc Marcel Nguyen, MD had 296 Medicare Part D claims for 125 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Duc Marcel Nguyen, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.