Uyen Dang, M.D.
Family Medicine Physician · Mission Viejo, CA
Uyen Dang, M.D. is a family medicine physician with a practice address in Mission Viejo, California, and NPI 1275707598, issued on Apr 17, 2008. Check the license (California A103358, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Uyen Dang
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A103358 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23512 Madero, Mission Viejo, CA 92691
- Phone
- (949) 583-1600
- Enumerated
- Apr 17, 2008
- Record last updated
- Aug 23, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 23512 Madero
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jasbir Kaur, MDFamily Medicine Physician1568624948
- Scott Lee, MDFamily Medicine Physician1417948621
- Maria Felicia Marcos, MSN, FNPFamily Nurse Practitioner1194043448
Verify Uyen Dang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 61% of the cost of the top drugs
3,229 Medicare Part D claims for 260 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Atorvastatin Calcium239 claims
- Metformin Hcl182 claims
- Lisinopril121 claims
- Amlodipine Besylate118 claims
- Losartan Potassium95 claims
- Alendronate Sodium93 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.
Uyen Dang among 17,133 family medicine physician records in California
Uyen Dang, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.
- NPI issued2008 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 family medicine physician records list a practice address in Mission Viejo
They are 37 of the 2,156 NPPES records with a practice address in Mission Viejo, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Mission Viejo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Todd Armbruster, D.O.Mission Viejo, CA 926911487670824
- Marcela Dominguez, M.D.Mission Viejo, CA 926911225039050
- Stefanie Fightlin, DOMission Viejo, CA 926911386640746
- Jon Mark Galbraith, M.D.Mission Viejo, CA 926911780619916
- Karl Gebhard, M.D.Mission Viejo, CA 926911548266018
- Jeffrey Globus, M.D.Mission Viejo, CA 926911730271321
- David Gonzalez, MDMission Viejo, CA 926911508860016
- Scott Lee, MDMission Viejo, CA 926911417948621
Common questions
What is Uyen Dang, M.D.'s NPI number?
Uyen Dang, M.D.'s National Provider Identifier (NPI) is 1275707598, issued on Apr 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Uyen Dang, M.D. located?
The NPPES record lists a practice address at 23512 Madero, Mission Viejo, CA, 92691. Phone: (949) 583-1600. Providers update this record themselves, so call before visiting.
How can I verify Uyen Dang, M.D.'s license?
NPPES lists California license number A103358, 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 Uyen Dang, M.D. prescribe under Medicare Part D?
In 2024, Uyen Dang, M.D. had 3,229 Medicare Part D claims for 260 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.