Robert Cory Zapotosky, PA-C
Physician Assistant · Glendora, CA
Robert Cory Zapotosky, PA-C is a physician assistant with a practice address in Glendora, California, and NPI 1841648573, issued on Jun 3, 2016. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert Cory Zapotosky
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 210 S Grand Ave, Glendora, CA 91741
- Phone
- (626) 914-3675
- Enumerated
- Jun 3, 2016
- Record last updated
- Mar 14, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170328001424); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 210 S Grand Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Cory Zapotosky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average physician assistant in 2024
404 Medicare Part D claims for 158 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Clobetasol Propionate75 claims
- Triamcinolone Acetonide69 claims
- Fluocinonide62 claims
- Ketoconazole45 claims
- Dupixent Pen25 claims
- Hydrocortisone24 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: $49.66
1 payment: food and beverage; the largest payer was Genzyme Corporation. The 64,719 providers of this specialty with any payment received $841.65 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
- Pacific Dermatology InstituteFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Cory Zapotosky among 14,451 physician assistant records in California
Robert Cory Zapotosky, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% 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 44% of them.
- NPI issued2016 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2016 · median 2018 among the 7,214 with a school on file
- Record last updated2017 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 physician assistant records list a practice address in Glendora
They are 21 of the 921 NPPES records with a practice address in Glendora, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Glendora → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Bernice Chen, PAGlendora, CA 917411669941373
- Kelley LuGlendora, CA 917411285256545
- Amy Ly, PAGlendora, CA 917411356978126
- Kimberly Pham, PA-CGlendora, CA 917411609673623
- Acacia Sutherland, PA-CGlendora, CA 917411720456726
- David Abovian, PAGlendora, CA 917401326349960
- Maggie ChenGlendora, CA 917401700476835
- Gloria Chen, PA-CGlendora, CA 917401760704258
Common questions
What is Robert Cory Zapotosky, PA-C's NPI number?
Robert Cory Zapotosky, PA-C's National Provider Identifier (NPI) is 1841648573, issued on Jun 3, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Robert Cory Zapotosky, PA-C located?
The NPPES record lists a practice address at 210 S Grand Ave, Glendora, CA, 91741. Phone: (626) 914-3675. Providers update this record themselves, so call before visiting.
How can I verify Robert Cory Zapotosky, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Robert Cory Zapotosky, PA-C prescribe under Medicare Part D?
In 2024, Robert Cory Zapotosky, PA-C had 404 Medicare Part D claims for 158 beneficiaries; the average among physician assistant prescribers was 830. 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.