NPPES file of Aug 9, 2026

Kathryn Elizabeth Frew, M.D.

Dermatology Physician · New York, NY

Kathryn Elizabeth Frew, M.D. is a dermatology physician with a practice address in New York, New York, and NPI 1073696704, issued on Oct 24, 2006. Check the license (New York 224626-1, 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
1073696704
Name
Kathryn Elizabeth Frew
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
224626-1 NY
Self-reported in NPPES; status is on the state search
Practice location
37 E 30TH St, New York, NY 10016
Phone
(212) 379-6477
Enumerated
Oct 24, 2006
Record last updated
Jun 16, 2023
Medicare enrollment
Enrolled (PECOS I20090330000467); accepts Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 1997
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 37 E 30TH St

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

  1. Dong Lee, DC, LACChiropractor1225471592

Verify Kathryn Elizabeth Frew 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 224626-1
    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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70% fewer Medicare Part D claims than the average dermatology physician in 2024

241 Medicare Part D claims for 52 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Kathryn Frew241
  2. Specialty average797

Most prescribed

  1. Ciclopirox52 claims
  2. Clindamycin Phosphate50 claims
  3. Mupirocin37 claims
  4. Ketoconazole26 claims
  5. Triamcinolone Acetonide17 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: $16.07

1 payment: food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathryn Frew$16.07
  2. Specialty average$8,544.61

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. Premier Healthcare IncNew York, NY

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

Kathryn Elizabeth Frew among 1,211 dermatology physician records in New York

Kathryn Elizabeth Frew, M.D. is one of 1,211 dermatology physician records with a practice address in New York. 87% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1997 · median 2004 among the 880 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in New York

There are 1,211 dermatology physician records in New York.

The 8 dermatology physician records with the nearest ZIP codes

  1. Timothy Cardozo, MD-PHDNew York, NY 100161386627891
  2. David Cohen, M.D.New York, NY 100161730179680
  3. Alvin Friedman-Kien, MDNew York, NY 100161679546980
  4. Gervaise Gerstner, MDNew York, NY 100161770584195
  5. Elizabeth Goldberg, MDNew York, NY 100161215918438
  6. Kenneth Howe, MDNew York, NY 100161932100245
  7. Edwin Joe, M.D.New York, NY 100161912980129
  8. Dmitry Khasak, MDNew York, NY 100161649258286

Common questions

What is Kathryn Elizabeth Frew, M.D.'s NPI number?

Kathryn Elizabeth Frew, M.D.'s National Provider Identifier (NPI) is 1073696704, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Elizabeth Frew, M.D. located?

The NPPES record lists a practice address at 37 E 30TH St, New York, NY, 10016. Phone: (212) 379-6477. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Elizabeth Frew, M.D.'s license?

NPPES lists New York license number 224626-1, 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 Kathryn Elizabeth Frew, M.D. prescribe under Medicare Part D?

In 2024, Kathryn Elizabeth Frew, M.D. had 241 Medicare Part D claims for 52 beneficiaries; the average among dermatology physician prescribers was 797. 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.