Theresa Ngoc Duong
Hospitalist Physician · Sacramento, CA
Theresa Ngoc Duong is a hospitalist physician with a practice address in Sacramento, California, and NPI 1245506872, issued on Mar 28, 2012. Check the license (California A129630, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Theresa Ngoc Duong
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A129630 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4150 V St, Sacramento, CA 95817
- Phone
- (916) 734-2812
- Enumerated
- Mar 28, 2012
- Record last updated
- Jun 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150630002921); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 4150 V St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Theresa Ngoc Duong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A129630Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average hospitalist physician in 2024
62 Medicare Part D claims for 19 beneficiaries, against an average of 521 among the 21,613 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.
Bills Medicare through one group practice
- Regents OF The Univ OF CASacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa Ngoc Duong among 3,099 hospitalist physician records in California
Theresa Ngoc Duong is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 51% of them.
- NPI issued2012 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2012 · median 2010 among the 2,505 with a school on file
- Record last updated2020 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Sacramento → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Simon Ascher, M.D., M.P.H.Sacramento, CA 958171558604835
- Xiao Cai, M.D.Sacramento, CA 958171205070067
- Gerardo CanedoSacramento, CA 958171588068969
- Wendy Chu, M.D.Sacramento, CA 958171780901231
- Willard Ellis, MDSacramento, CA 958171306824503
- Ranganathan Madhavan, M.D.Sacramento, CA 958171043355019
- Emily Marquet, M.D.Sacramento, CA 958171972869402
- Alison McWilliams, D.O.Sacramento, CA 958171740629476
Common questions
What is Theresa Ngoc Duong's NPI number?
Theresa Ngoc Duong's National Provider Identifier (NPI) is 1245506872, issued on Mar 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Ngoc Duong located?
The NPPES record lists a practice address at 4150 V St, Sacramento, CA, 95817. Phone: (916) 734-2812. Providers update this record themselves, so call before visiting.
How can I verify Theresa Ngoc Duong's license?
NPPES lists California license number A129630, 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 Theresa Ngoc Duong prescribe under Medicare Part D?
In 2024, Theresa Ngoc Duong had 62 Medicare Part D claims for 19 beneficiaries; the average among hospitalist physician prescribers was 521. 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.