Madeline Nguyen, D.O.
Adult Medicine Physician · Sacramento, CA
Madeline Nguyen, D.O. is an adult medicine physician with a practice address in Sacramento, California, and NPI 1316333453, issued on Apr 15, 2015. Check the license (California 20A15108, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Madeline Nguyen
- Credential
- D.O.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- 20A15108 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1900 T St, Sacramento, CA 95811
- Phone
- (530) 749-3242
- Enumerated
- Apr 15, 2015
- Record last updated
- Sep 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (530) 749-3248
- Medicare enrollment
- Enrolled (PECOS I20180914002253); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 1900 T St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kamisha Dillard, MSN, NP-CAdult Health Nurse Practitioner1376953216
- Beatrice DubeObstetrics & Gynecology Nurse Practitioner1235465501
- Maria Isabel Rivera, MSN, FNPNurse Practitioner1588977201
Verify Madeline Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A15108Check 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% more Medicare Part D claims than the average adult medicine physician in 2024
5,947 Medicare Part D claims for 323 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 180 claims were for opioids.
Most prescribed
- Atorvastatin Calcium344 claims
- Amlodipine Besylate299 claims
- Albuterol Sulfate Hfa214 claims
- Lisinopril206 claims
- Losartan Potassium182 claims
- Metformin Hcl178 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.
Industry payments in 2024: $972.10
43 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 664 providers of this specialty with any payment received $1,405.95 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
- Peach Tree HealthcareSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Madeline Nguyen among 386 adult medicine physician records in California
Madeline Nguyen, D.O. is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 72% of them.
- NPI issued2015 · 72% of these records are older, 27% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2015 · median 2005 among the 187 with a school on file
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Sacramento → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Breanna Bui, NPSacramento, CA 958111003555889
- David Hubbard, MDSacramento, CA 958111689237174
- David Foos, DOSacramento, CA 958151336264290
- Mark Murray, MDSacramento, CA 958161841959863
- Champak Venkitachalam, MD, MPHSacramento, CA 958161649589052
- Julie Jacobs, MDSacramento, CA 958171376819433
- Rebecca Lewis, FNPSacramento, CA 958211366206237
- Kiranbir Dhillon Thiara, M.D.Sacramento, CA 958231083860787
Common questions
What is Madeline Nguyen, D.O.'s NPI number?
Madeline Nguyen, D.O.'s National Provider Identifier (NPI) is 1316333453, issued on Apr 15, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Madeline Nguyen, D.O. located?
The NPPES record lists a practice address at 1900 T St, Sacramento, CA, 95811. Phone: (530) 749-3242. Providers update this record themselves, so call before visiting.
How can I verify Madeline Nguyen, D.O.'s license?
NPPES lists California license number 20A15108, 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 Madeline Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Madeline Nguyen, D.O. had 5,947 Medicare Part D claims for 323 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.