NPPES file of Aug 9, 2026

Mark Rydzewski, D.O.

Emergency Medicine Physician · Maspeth, NY

Mark Rydzewski, D.O. is an emergency medicine physician with a practice address in Maspeth, New York, and NPI 1558448571, issued on Nov 1, 2006. Check the license (New York 185061, 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
1558448571
Name
Mark Rydzewski
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
185061 NY
Self-reported in NPPES; status is on the state search
Practice location
5804 61St St, Maspeth, NY 11378
Phone
(718) 894-9156
Enumerated
Nov 1, 2006
Record last updated
Feb 27, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(718) 692-8569
Medicaid ID
01477861 NY
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Mark Rydzewski 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 185061
    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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32% fewer Medicare Part D claims than the average emergency medicine physician in 2024

154 Medicare Part D claims for 41 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Mark Rydzewski154
  2. Specialty average226

Most prescribed

  1. Levothyroxine Sodium12 claims
  2. Vitamin D212 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.

Mark Rydzewski among 5,025 emergency medicine physician records in New York

Mark Rydzewski, D.O. is one of 5,025 emergency medicine physician records with a practice address in New York. 86% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 72% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2009 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in New York

There are 5,025 emergency medicine physician records in New York.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Susan Jacobowitz, M.D.Woodside, NY 113771306812441
  2. Elliot Salenger, MDWoodside, NY 113771831287176
  3. Josef Schenker, M.D.Middle Village, NY 113791225004708
  4. Karen Benabou, M.D., M.P.HForest Hills, NY 113751225492374
  5. Mary Grace CastroForest Hills, NY 113751609338227
  6. Eric Copeli, MDForest Hills, NY 113751215314083
  7. Benjamin Kessler, MDForest Hills, NY 113751164724548
  8. Elizabeth La Rosa, MD, MPHForest Hills, NY 113751588291967

Common questions

What is Mark Rydzewski, D.O.'s NPI number?

Mark Rydzewski, D.O.'s National Provider Identifier (NPI) is 1558448571, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Rydzewski, D.O. located?

The NPPES record lists a practice address at 5804 61St St, Maspeth, NY, 11378. Phone: (718) 894-9156. Providers update this record themselves, so call before visiting.

How can I verify Mark Rydzewski, D.O.'s license?

NPPES lists New York license number 185061, 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 Mark Rydzewski, D.O. prescribe under Medicare Part D?

In 2024, Mark Rydzewski, D.O. had 154 Medicare Part D claims for 41 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.