NPPES file of Aug 9, 2026

Daniel Mayer, M.D.

Pediatric Allergy/Immunology Physician · Smithtown, NY

Daniel Mayer, M.D. is a pediatric allergy/immunology physician with a practice address in Smithtown, New York, and NPI 1245273135, issued on Jun 14, 2006. Check the license (New York 140045, 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
1245273135
Name
Daniel Mayer
Credential
M.D.
Primary taxonomy
Pediatric Allergy/Immunology Physician 2080P0201X
License number
140045 NY
Self-reported in NPPES; status is on the state search
Practice location
263 East Main Street, Smithtown, NY 11787
Phone
(631) 366-5252
Enumerated
Jun 14, 2006
Record last updated
Oct 29, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00603338 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 Daniel Mayer 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 140045
    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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20% more Medicare Part D claims than the average pediatric allergy/immunology physician in 2024

312 Medicare Part D claims for 74 beneficiaries, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Daniel Mayer312
  2. Specialty average259

Most prescribed

  1. Fluticasone Propionate39 claims
  2. Albuterol Sulfate Hfa33 claims
  3. Prednisone31 claims
  4. Xolair18 claims
  5. Azelastine Hcl17 claims
  6. Montelukast Sodium17 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: $610.55

31 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 289 providers of this specialty with any payment received $7,101.54 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daniel Mayer$610.55
  2. Specialty average$7,101.54

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

Daniel Mayer among 57 pediatric allergy/immunology physician records in New York

Daniel Mayer, M.D. is one of 57 pediatric allergy/immunology physician records with a practice address in New York. 65% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 51% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 28% of these records are
  • Record last updated2007 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0201X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Allergy/Immunology Physician providers in New York

There are 57 pediatric allergy/immunology physician records in New York.

The 8 pediatric allergy/immunology physician records with the nearest ZIP codes

  1. Susan Schuval, MDEast Setauket, NY 117331568517217
  2. Alyssa EdwardsBay Shore, NY 117061487591699
  3. Kalpana Patel, M.D.Bayport, NY 117051225070303
  4. Sheila Natbony, DONorth Babylon, NY 117031033163969
  5. Kylie Jungles, MDAlbany, NY 122111528681947
  6. Won Baik-Han, M.D.Flushing, NY 113551538230099
  7. Michael Marcus, MDBrooklyn, NY 112191134114192
  8. Irina KatayevaBrooklyn, NY 112091184941213

Common questions

What is Daniel Mayer, M.D.'s NPI number?

Daniel Mayer, M.D.'s National Provider Identifier (NPI) is 1245273135, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Mayer, M.D. located?

The NPPES record lists a practice address at 263 East Main Street, Smithtown, NY, 11787. Phone: (631) 366-5252. Providers update this record themselves, so call before visiting.

How can I verify Daniel Mayer, M.D.'s license?

NPPES lists New York license number 140045, 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 Daniel Mayer, M.D. prescribe under Medicare Part D?

In 2024, Daniel Mayer, M.D. had 312 Medicare Part D claims for 74 beneficiaries; the average among pediatric allergy/immunology physician prescribers was 259. 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.