Phu Thien Nguyen, D.O.
General Practice Physician · Garden Grove, CA
Phu Thien Nguyen, D.O. is a general practice physician with a practice address in Garden Grove, California, and NPI 1386642866, issued on Jul 8, 2005. Check the license (California 20A7161, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Phu Thien Nguyen
- Credential
- D.O.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 20A7161 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12555 Garden Grove Blvd, Garden Grove, CA 92843
- Phone
- (714) 741-0501
- Enumerated
- Jul 8, 2005
- Record last updated
- Jun 18, 2026
- Fax
- (714) 741-0095
- Medicaid ID
- 00AX71610 CA
- Medicare enrollment
- Enrolled (PECOS I20040810000524); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 1,956 in California → Look up another NPI →
Also registered at 12555 Garden Grove Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Raman Chopra, MDPediatrics Physician1093816738
- Michael Finney, M.D.Infectious Disease Physician1144323361
- Julie Hwynn, M.D.Internal Medicine Physician1780682401
- Hong-An Jan, M.D.Specialist1255332979
Verify Phu Thien Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7161Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average general practice physician in 2024
340 Medicare Part D claims for 131 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Estradiol86 claims
- Fluconazole45 claims
- Metronidazole37 claims
- Myrbetriq24 claims
- Clotrimazole-Betamethasone19 claims
- Sulfamethoxazole-Trimethoprim19 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: $402.81
16 payments; by number, the most common kind was food and beverage; the largest payer was Coloplast Corp. The 4,259 providers of this specialty with any payment received $1,273.40 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.
Phu Thien Nguyen among 1,956 general practice physician records in California
Phu Thien Nguyen, D.O. is one of 1,956 general practice physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated1992 · median 1994 among the 520 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
All 1,956 in California → Every provider in Garden Grove → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Minh Dang, MDGarden Grove, CA 928431235231333
- Luis Garcia-Nique, M.D.Garden Grove, CA 928431003955519
- Dat Hoang, MDGarden Grove, CA 928431407141211
- George Magallon, M.D.Garden Grove, CA 928431427284405
- Du Tran, MDGarden Grove, CA 928431841216801
- Kwang Kim, M.D.Garden Grove, CA 928441285725051
- Theodore Kwon, MDGarden Grove, CA 928441760408470
- Dinh Nguyen, MDGarden Grove, CA 928441922259159
Common questions
What is Phu Thien Nguyen, D.O.'s NPI number?
Phu Thien Nguyen, D.O.'s National Provider Identifier (NPI) is 1386642866, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Phu Thien Nguyen, D.O. located?
The NPPES record lists a practice address at 12555 Garden Grove Blvd, Garden Grove, CA, 92843. Phone: (714) 741-0501. Providers update this record themselves, so call before visiting.
How can I verify Phu Thien Nguyen, D.O.'s license?
NPPES lists California license number 20A7161, 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 Phu Thien Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Phu Thien Nguyen, D.O. had 340 Medicare Part D claims for 131 beneficiaries; the average among general practice physician prescribers was 3,030. 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.