Mitchell Leslie Cassel, D.O
Optometrist · New York, NY
Mitchell Leslie Cassel, D.O is an optometrist with a practice address in New York, New York, and NPI 1336217827, issued on Dec 1, 2006. Check the license (New York UT004231-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mitchell Leslie Cassel
- Credential
- D.O
- Primary taxonomy
- Optometrist 152W00000X
- License number
- UT004231-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 63 West 49TH Street, New York, NY 10112
- Phone
- (212) 765-4444
- Enumerated
- Dec 1, 2006
- Record last updated
- Aug 4, 2025
- Fax
- (212) 765-4459
- Medicare enrollment
- Enrolled (PECOS I20090504000008); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 1982
- Entity
- Type 1 · individual
8 nearest optometrist records → All 3,535 in New York → Look up another NPI →
Verify Mitchell Leslie Cassel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license UT004231-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average optometrist in 2024
28 Medicare Part D claims for 14 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% of 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: $887.24
23 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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.
Mitchell Leslie Cassel among 3,535 optometrist records in New York
Mitchell Leslie Cassel, D.O is one of 3,535 optometrist records with a practice address in New York. 65% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1982 · median 2008 among the 1,667 with a school on file
- Record last updated2025 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in New York
There are 3,535 optometrist records in New York.
All 3,535 in New York → Every provider in New York → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Sarah Klibanoff, ODNew York, NY 101121043466725
- Crystal Guo, ODNew York, NY 101221962136002
- Kimberly MatsuoNew York, NY 101221972816007
- Noelle Sun, ODNew York, NY 101221902288202
- Matthew Horowitz, O.DNew York, NY 101231851466569
- Kathy Tung, O.D.New York, NY 101231760770416
- Andrew Berger, ODNew York, NY 101281679631584
- Anne Reuter, O.D.New York, NY 101281841433620
Common questions
What is Mitchell Leslie Cassel, D.O's NPI number?
Mitchell Leslie Cassel, D.O's National Provider Identifier (NPI) is 1336217827, issued on Dec 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell Leslie Cassel, D.O located?
The NPPES record lists a practice address at 63 West 49TH Street, New York, NY, 10112. Phone: (212) 765-4444. Providers update this record themselves, so call before visiting.
How can I verify Mitchell Leslie Cassel, D.O's license?
NPPES lists New York license number UT004231-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Mitchell Leslie Cassel, D.O prescribe under Medicare Part D?
In 2024, Mitchell Leslie Cassel, D.O had 28 Medicare Part D claims for 14 beneficiaries; the average among optometrist prescribers was 277. 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.