NPPES file of Aug 9, 2026

Colin Christopher Ryan, MD

Emergency Medicine Physician · White Plains, NY

Colin Christopher Ryan, MD is an emergency medicine physician with a practice address in White Plains, New York, and NPI 1558623421, issued on Jun 15, 2012. Check the license 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558623421
Name
Colin Christopher Ryan
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MT202113 PA
Self-reported in NPPES; status is on the state search
Practice location
41 E Post RD, White Plains, NY 10601
Phone
(914) 681-1174
Enumerated
Jun 15, 2012
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(914) 681-2909
Medicare enrollment
Enrolled (PECOS I20201020000310); accepts Medicare assignment
Medical or professional school
New York Medical College, 2012
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 41 E Post RD

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

  1. Rakesh Abbi, MDAnatomic Pathology & Clinical Pathology Physician1669447009
  2. Zef Abraham, MDAnesthesiology Physician1104836196
  3. Oscar Abramovich, DOInternal Medicine Physician1104569714
  4. Hazeez Adigun, MDAnesthesiology Physician1558733063
  5. John Aidonis, MDAnesthesiology Physician1992875173
  6. Nezar Al-Shaikhly, M.D.Internal Medicine Physician1790040913

Verify Colin Christopher Ryan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Permanente Medical Group IncSacramento, CA

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

Colin Christopher Ryan among 5,025 emergency medicine physician records in New York

Colin Christopher Ryan, MD 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 2012, is newer than 52% of them.

  • NPI issued2012 · 52% of these records are older, 44% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2012 · median 2013 among the 3,232 with a school on file
  • Record last updated2021 · 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. Brenda D'Amico, M.D.White Plains, NY 106011245266121
  2. Sharon Frankel, MDWhite Plains, NY 106011184792343
  3. Kimberly Greene-Liebowitz, MDWhite Plains, NY 106011982884482
  4. Anna Holness, MDWhite Plains, NY 106011891738738
  5. Bakhtiar Ishtiaq, M.D.White Plains, NY 106011790705770
  6. Farrukh Jafri, M.D.White Plains, NY 106011194951921
  7. Alexis Johnson, M.D.White Plains, NY 106011770513079
  8. James Keating, M.D.White Plains, NY 106011053342519

Common questions

What is Colin Christopher Ryan, MD's NPI number?

Colin Christopher Ryan, MD's National Provider Identifier (NPI) is 1558623421, issued on Jun 15, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Colin Christopher Ryan, MD located?

The NPPES record lists a practice address at 41 E Post RD, White Plains, NY, 10601. Phone: (914) 681-1174. Providers update this record themselves, so call before visiting.

How can I verify Colin Christopher Ryan, MD's license?

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.

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.