NPPES file of Aug 9, 2026

Frank Xiaoyu Cao, MD

Glaucoma Specialist (Ophthalmology) Physician · Stockton, CA

Frank Xiaoyu Cao, MD is a glaucoma specialist (ophthalmology) physician with a practice address in Stockton, California, and NPI 1366703969, issued on May 31, 2012. Check the license (California C192192, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366703969
Name
Frank Xiaoyu Cao
Credential
MD
Primary taxonomy
Glaucoma Specialist (Ophthalmology) Physician 207WX0009X
License number
C192192 CA
Self-reported in NPPES; status is on the state search
Practice location
7373 West LN, Stockton, CA 95210
Phone
(209) 983-7991
Enumerated
May 31, 2012
Record last updated
May 11, 2026
Fax
(209) 476-3359
Medicare enrollment
Enrolled (PECOS I20240723002124); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest glaucoma specialist (ophthalmology) physician records → All 70 in California → Look up another NPI →

Also registered at 7373 West LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Radha Achalu, MDFamily Medicine Physician1366520942
  2. Brett Adams, MDOtolaryngology Physician1407934227
  3. Maria-Beatina Agagon, PTPhysical Therapist1265502991
  4. Lorna Agoo, MDInternal Medicine Physician1831241637
  5. Erica Aguiar, DPTPhysical Therapist1649785825
  6. Rosario Aguirre, RDRegistered Dietitian1023172988

Verify Frank Xiaoyu Cao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C192192    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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42% fewer Medicare Part D claims than the average glaucoma specialist (ophthalmology) physician in 2024

1,783 Medicare Part D claims for 773 beneficiaries, against an average of 3,060 among the 430 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Frank Cao1,783
  2. Specialty average3,060

Most prescribed

  1. Latanoprost386 claims
  2. Prednisolone Acetate283 claims
  3. Dorzolamide-Timolol223 claims
  4. Timolol Maleate178 claims
  5. Brimonidine Tartrate82 claims
  6. Diclofenac Sodium58 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: $204.96

4 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 391 providers of this specialty with any payment received $5,284.60 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Frank Cao$204.96
  2. Specialty average$5,284.60

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

  1. Permanente Medical Group IncStockton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Frank Xiaoyu Cao among 70 glaucoma specialist (ophthalmology) physician records in California

Frank Xiaoyu Cao, MD is one of 70 glaucoma specialist (ophthalmology) physician records with a practice address in California. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 37% of them.

  • NPI issued2012 · 37% of these records are older, 59% newer
  • In a Medicare fileYes · 97% of these records are
  • In the CMS Doctors and Clinicians fileYes · 93% of these records are
  • Graduated2012 · median 2013 among the 65 with a school on file
  • Record last updated2026 · 30% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0009X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Glaucoma Specialist (Ophthalmology) Physician providers in California

There are 70 glaucoma specialist (ophthalmology) physician records in California.

All 70 in California → Every provider in Stockton → Glaucoma Specialist (Ophthalmology) Physician nationwide →

The 8 glaucoma specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Han Kim, M.D.Stockton, CA 952101760821375
  2. Sina Vahedi, M.D.Stockton, CA 952071679005219
  3. Dipali Apte, MD, PHDSan Jose, CA 951281528145455
  4. Felise May Barte, MDSanta Clara, CA 950511467658062
  5. Ricky Cui, MDSanta Clara, CA 950511821592049
  6. Aimee Chang, MDFreedom, CA 950191730689340
  7. Avni Shah, MDSanta Rosa, CA 954031598007676
  8. Jason Bacharach, MDPetaluma, CA 949541639160112

Common questions

What is Frank Xiaoyu Cao, MD's NPI number?

Frank Xiaoyu Cao, MD's National Provider Identifier (NPI) is 1366703969, issued on May 31, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Frank Xiaoyu Cao, MD located?

The NPPES record lists a practice address at 7373 West LN, Stockton, CA, 95210. Phone: (209) 983-7991. Providers update this record themselves, so call before visiting.

How can I verify Frank Xiaoyu Cao, MD's license?

NPPES lists California license number C192192, 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 Frank Xiaoyu Cao, MD prescribe under Medicare Part D?

In 2024, Frank Xiaoyu Cao, MD had 1,783 Medicare Part D claims for 773 beneficiaries; the average among glaucoma specialist (ophthalmology) physician prescribers was 3,060. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.