Bao-Thu Thi Nguyen, M.D.
Ophthalmology Physician · Long Beach, CA
Bao-Thu Thi Nguyen, M.D. is an ophthalmology physician with a practice address in Long Beach, California, and NPI 1538137666, issued on Mar 14, 2006. Check the license (California A62609, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bao-Thu Thi Nguyen
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A62609 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Long Beach Blvd Ste 400, Long Beach, CA 90807
- Phone
- (562) 591-7700
- Enumerated
- Mar 14, 2006
- Record last updated
- Feb 27, 2024
- Fax
- (562) 591-7700
- Medicaid ID
- 00A626090 CA
- Medicare enrollment
- Enrolled (PECOS I20070209000653); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 4300 Long Beach Blvd Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cory Brame, M.D.Ophthalmology Physician1821093311
- Brandon Chuang, ODOptometrist1992209373
- Tu Doan, O.D.Optometrist1861557712
- Michael Markowitz, ODOptometrist1538937701
- Ashley Owyang, O.D.Optometrist1245513571
- Dan Tran, M.D.Specialist1487767190
Verify Bao-Thu Thi Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A62609Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average ophthalmology physician in 2024
6,060 Medicare Part D claims for 901 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Latanoprost897 claims
- Dorzolamide-Timolol620 claims
- Lumigan507 claims
- Vyzulta478 claims
- Simbrinza324 claims
- Moxifloxacin280 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): 78.4 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: $3,567.43
129 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Dan B Tran Medical CorporationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bao-Thu Thi Nguyen among 2,899 ophthalmology physician records in California
Bao-Thu Thi Nguyen, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1995 · median 2001 among the 1,907 with a school on file
- Record last updated2024 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Long Beach → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Fox Boswell, MDLong Beach, CA 908071467453910
- Cory Brame, M.D.Long Beach, CA 908071821093311
- Michael Brenner, M.D.Long Beach, CA 908071841222023
- Andrew Choy, MD.Long Beach, CA 908071871513168
- Robert Clark, M.DLong Beach, CA 908071043232325
- Julie Gasperini, M.D.Long Beach, CA 908071104022045
- Shalu Gupta, M.D.Long Beach, CA 908071518187202
- John McBeath, MDLong Beach, CA 908071124020888
Common questions
What is Bao-Thu Thi Nguyen, M.D.'s NPI number?
Bao-Thu Thi Nguyen, M.D.'s National Provider Identifier (NPI) is 1538137666, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bao-Thu Thi Nguyen, M.D. located?
The NPPES record lists a practice address at 4300 Long Beach Blvd Ste 400, Long Beach, CA, 90807. Phone: (562) 591-7700. Providers update this record themselves, so call before visiting.
How can I verify Bao-Thu Thi Nguyen, M.D.'s license?
NPPES lists California license number A62609, 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 Bao-Thu Thi Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Bao-Thu Thi Nguyen, M.D. had 6,060 Medicare Part D claims for 901 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Bao-Thu Thi Nguyen, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.4 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.