Ann Van Anh Trong Quan, M.D.
Ophthalmology Physician · Oceanside, CA
Ann Van Anh Trong Quan, M.D. is an ophthalmology physician with a practice address in Oceanside, California, and NPI 1871956581, issued on Mar 30, 2016. Check the license (California A171611, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ann Van Anh Trong Quan
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- A171611 CA
ME144407 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2205 Vista Way # 330, Oceanside, CA 92054
- Phone
- (760) 704-5600
- Enumerated
- Mar 30, 2016
- Record last updated
- Sep 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210811001571); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Ann Van Anh Trong Quan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A171611Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average ophthalmology physician in 2024
4,871 Medicare Part D claims for 770 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Latanoprost1,698 claims
- Dorzolamide-Timolol637 claims
- Timolol Maleate434 claims
- Brimonidine Tartrate333 claims
- Prednisolone Acetate269 claims
- Vyzulta197 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: $3,561.70
93 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
- Scripps HealthSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Van Anh Trong Quan among 2,899 ophthalmology physician records in California
Ann Van Anh Trong Quan, 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 2016, is newer than 86% of them.
- NPI issued2016 · 86% of these records are older, 12% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2016 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 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 Oceanside → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- James Davies, M.D.Oceanside, CA 920541699770511
- Frederick Knapp, D.O.Oceanside, CA 920541972605939
- Peter Krall, M.D.Oceanside, CA 920541780818005
- Alexandria LiOceanside, CA 920541841652864
- Kenneth Brinsko, MDCamp Pendleton, CA 920551831191352
- Stephen O'ConnellCamp Pendleton, CA 920551396835302
- Anthony SkinnerOceanside, CA 920551568733681
- Andrew Ward, M.D.Oceanside, CA 920551992116032
Common questions
What is Ann Van Anh Trong Quan, M.D.'s NPI number?
Ann Van Anh Trong Quan, M.D.'s National Provider Identifier (NPI) is 1871956581, issued on Mar 30, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ann Van Anh Trong Quan, M.D. located?
The NPPES record lists a practice address at 2205 Vista Way # 330, Oceanside, CA, 92054. Phone: (760) 704-5600. Providers update this record themselves, so call before visiting.
How can I verify Ann Van Anh Trong Quan, M.D.'s license?
NPPES lists California license number A171611, 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 Ann Van Anh Trong Quan, M.D. prescribe under Medicare Part D?
In 2024, Ann Van Anh Trong Quan, M.D. had 4,871 Medicare Part D claims for 770 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.