NPPES file of Aug 9, 2026

William Kinney Mallon, MD

Emergency Medical Services (Emergency Medicine) Physician · Stony Brook, NY

William Kinney Mallon, MD is an emergency medical services (emergency medicine) physician with a practice address in Stony Brook, New York, and NPI 1881635811, issued on Jun 9, 2006. Check the license (New York 282233, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881635811
Name
William Kinney Mallon
Credential
MD
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
282233 NY
Self-reported in NPPES; status is on the state search
Practice location
Stony Brook Medicine Dept OF Emergency, Stony Brook, NY 11794
Phone
(631) 444-2478
Enumerated
Jun 9, 2006
Record last updated
Nov 23, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
00G640550 CA
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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Also registered at Stony Brook Medicine Dept OF Emergency

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

  1. Ayse Avcioglu, M.D.Emergency Medicine Physician1811126642
  2. Liza Leung, MDEmergency Medicine Physician1174787154
  3. Rory Spiegel, DPT, MDEmergency Medicine Physician1255509311

Verify William Kinney Mallon 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 282233
    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

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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William Kinney Mallon among 169 emergency medical services (emergency medicine) physician records in New York

William Kinney Mallon, MD is one of 169 emergency medical services (emergency medicine) physician records with a practice address in New York. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 33% newer
  • In a Medicare fileNo · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2015 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X 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 Medical Services (Emergency Medicine) Physician providers in New York

There are 169 emergency medical services (emergency medicine) physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Samuel HoffmanWest Islip, NY 117951700406980
  2. Reine JamesWest Islip, NY 117951124106125
  3. Teresa AndersonSmithtown, NY 117871336212091
  4. Robbin FriedbergSmithtown, NY 117871629143722
  5. Bruce Sanderov, MDSmithtown, NY 117871346254471
  6. Colby Kusinitz, EMTPlainview, NY 118031407668239
  7. Kenneth Hirsch, MDPort Jefferson, NY 117771972618296
  8. Brandon Lee, PA-CPatchogue, NY 117721326523382

Common questions

What is William Kinney Mallon, MD's NPI number?

William Kinney Mallon, MD's National Provider Identifier (NPI) is 1881635811, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Kinney Mallon, MD located?

The NPPES record lists a practice address at Stony Brook Medicine Dept OF Emergency, Stony Brook, NY, 11794. Phone: (631) 444-2478. Providers update this record themselves, so call before visiting.

How can I verify William Kinney Mallon, MD's license?

NPPES lists New York license number 282233, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.