Michael Ong Nguyen, MD
Dermatology Physician · Encino, CA
Michael Ong Nguyen, MD is a dermatology physician with a practice address in Encino, California, and NPI 1174028138, issued on Mar 29, 2018. Check the license (California A164715, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Ong Nguyen
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A164715 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15503 Ventura Blvd, Encino, CA 91436
- Phone
- (818) 461-8148
- Enumerated
- Mar 29, 2018
- Record last updated
- Aug 29, 2022
- Fax
- (818) 461-8105
- Medicare enrollment
- Enrolled (PECOS I20220721001308); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 15503 Ventura Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Brown, PA-CPhysician Assistant1013249275
- Kristal Madden, PA-CPhysician Assistant1457024762
- Johanna Salazar, MS, RDNStudent in an Organized Health Care Education/Training Program1558009878
- Kelsey Thomas-Boisvert, MDFamily Medicine Physician1780116707
- Justin Whitten, RD RDNRegistered Dietitian1457159568
Verify Michael Ong Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164715Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average dermatology physician in 2024
1,280 Medicare Part D claims for 405 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Ketoconazole215 claims
- Triamcinolone Acetonide97 claims
- Hydrocortisone84 claims
- Mupirocin79 claims
- Ciclopirox63 claims
- Fluocinonide62 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $794.21
21 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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 2 group practices
- The Regents OF The University OF CaliforniaLos Angeles, CA
- The Regents OF The University OF CaliforniaThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Ong Nguyen among 2,083 dermatology physician records in California
Michael Ong Nguyen, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 86% of them.
- NPI issued2018 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2018 · median 2006 among the 1,450 with a school on file
- Record last updated2022 · 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 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Encino → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Norman Brooks, MDEncino, CA 914361508960667
- Alex Eshaghian, MD, PHDEncino, CA 914361154582641
- Michael Farhangian, M.D.Encino, CA 914361346690138
- Carolyn Goh, M.D.Encino, CA 914361346408622
- Leo Indianer, MDEncino, CA 914361710075858
- Ezra Kest, MDEncino, CA 914361013025576
- Catherine Ni, M.D.Encino, CA 914361013371343
- Sophie ShirinEncino, CA 914361114106093
Common questions
What is Michael Ong Nguyen, MD's NPI number?
Michael Ong Nguyen, MD's National Provider Identifier (NPI) is 1174028138, issued on Mar 29, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Michael Ong Nguyen, MD located?
The NPPES record lists a practice address at 15503 Ventura Blvd, Encino, CA, 91436. Phone: (818) 461-8148. Providers update this record themselves, so call before visiting.
How can I verify Michael Ong Nguyen, MD's license?
NPPES lists California license number A164715, 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 Michael Ong Nguyen, MD prescribe under Medicare Part D?
In 2024, Michael Ong Nguyen, MD had 1,280 Medicare Part D claims for 405 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Michael Ong Nguyen, MD's MIPS final score?
The 2023 MIPS final score is 76.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.