NPPES file of Aug 9, 2026

Ronit Kahanowicz, M.D.

Ophthalmology Physician · New York, NY

Ronit Kahanowicz, M.D. is an ophthalmology physician with a practice address in New York, New York, and NPI 1801830864, issued on Jun 16, 2006. Check the license (New York 214418, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1801830864
Name
Ronit Kahanowicz
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
214418 NY
Self-reported in NPPES; status is on the state search
Practice location
550 Park Ave, New York, NY 10021
Phone
(212) 935-0888
Enumerated
Jun 16, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(212) 759-1676
Medicare enrollment
Enrolled (PECOS I20040116000949); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 1998
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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Also registered at 550 Park Ave

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

  1. Susan Fromer, M.D.Ophthalmology Physician1508949603

Verify Ronit Kahanowicz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 214418
    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 New York license search

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68% fewer Medicare Part D claims than the average ophthalmology physician in 2024

493 Medicare Part D claims for 92 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.

  1. Ronit Kahanowicz493
  2. Specialty average1,518

Most prescribed

  1. Latanoprost103 claims
  2. Lumigan41 claims
  3. Prednisolone Acetate38 claims
  4. Dorzolamide-Timolol37 claims
  5. Ketorolac Tromethamine35 claims
  6. Moxifloxacin33 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: $119.07

5 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.

  1. Ronit Kahanowicz$119.07
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Ronit Kahanowicz among 1,822 ophthalmology physician records in New York

Ronit Kahanowicz, M.D. is one of 1,822 ophthalmology physician records with a practice address in New York. 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1998 · median 1995 among the 1,215 with a school on file
  • Record last updated2007 · 71% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in New York

There are 1,822 ophthalmology physician records in New York.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. David H Abramson, MDNew York, NY 100211235114026
  2. Norman Charles, M.D.New York, NY 100211356335525
  3. Elisabeth Cohen, MDNew York, NY 100211538167283
  4. Nancy Coles, MDNew York, NY 100211609868074
  5. Robin Hayworth, M.D.New York, NY 100211174521876
  6. Brian Herschorn, M.D.New York, NY 100211578552550
  7. Irene Magramm, M.D.New York, NY 100211962400747
  8. Michael Nissen, M.D.New York, NY 100211609875442

Common questions

What is Ronit Kahanowicz, M.D.'s NPI number?

Ronit Kahanowicz, M.D.'s National Provider Identifier (NPI) is 1801830864, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronit Kahanowicz, M.D. located?

The NPPES record lists a practice address at 550 Park Ave, New York, NY, 10021. Phone: (212) 935-0888. Providers update this record themselves, so call before visiting.

How can I verify Ronit Kahanowicz, M.D.'s license?

NPPES lists New York license number 214418, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ronit Kahanowicz, M.D. prescribe under Medicare Part D?

In 2024, Ronit Kahanowicz, M.D. had 493 Medicare Part D claims for 92 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.