Chrystene A. Nguyen, M.D.
Family Medicine Physician · Costa Mesa, CA
Chrystene A. Nguyen, M.D. is a family medicine physician with a practice address in Costa Mesa, California, and NPI 1710123609, issued on Dec 23, 2008. Check the license (California A101855, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chrystene A. Nguyen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A101855 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1170 Baker St Ste H1, Costa Mesa, CA 92626
- Phone
- (949) 791-3250
- Enumerated
- Dec 23, 2008
- Record last updated
- Nov 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090729000868); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1170 Baker St Ste H1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Ng, M.DFamily Medicine Physician1285830737
- Thao Phan, M.D.Family Medicine Physician1619113503
- Shayan Senaati, DOFamily Medicine Physician1083288625
Verify Chrystene A. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
161 Medicare Part D claims for 107 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
- Albuterol Sulfate Hfa12 claims
- Sulfamethoxazole-Trimethoprim12 claims
- Atorvastatin Calcium11 claims
- Cephalexin11 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: $935.23
21 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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
- Hmts IncCosta Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chrystene A. Nguyen among 17,133 family medicine physician records in California
Chrystene A. Nguyen, 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 fileYes · 62% of these records are
- Graduated2006 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 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).
56 family medicine physician records list a practice address in Costa Mesa
They are 56 of the 4,286 NPPES records with a practice address in Costa Mesa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Costa Mesa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ronald Bangsil, MDCosta Mesa, CA 926261043261654
- David Chun, MDCosta Mesa, CA 926261932199213
- James Ferguson, DOCosta Mesa, CA 926261689625212
- Sienna Go, M.D.Costa Mesa, CA 926261295759298
- Guy Gottschalk, M.D.Costa Mesa, CA 926261235228750
- Joseph Horejsi, MDCosta Mesa, CA 926261295726347
- Michael Kao, M.D.Costa Mesa, CA 926261316953805
- Ena Kariya, MDCosta Mesa, CA 926261588655658
Common questions
What is Chrystene A. Nguyen, M.D.'s NPI number?
Chrystene A. Nguyen, M.D.'s National Provider Identifier (NPI) is 1710123609, issued on Dec 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Chrystene A. Nguyen, M.D. located?
The NPPES record lists a practice address at 1170 Baker St Ste H1, Costa Mesa, CA, 92626. Phone: (949) 791-3250. Providers update this record themselves, so call before visiting.
How can I verify Chrystene A. Nguyen, M.D.'s license?
NPPES lists California license number A101855, 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 Chrystene A. Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Chrystene A. Nguyen, M.D. had 161 Medicare Part D claims for 107 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.