NPPES file of Aug 9, 2026

Irwin Marvin Dannis, M.D.

Internal Medicine Physician · Hartsdale, NY

Irwin Marvin Dannis, M.D. is an internal medicine physician with a practice address in Hartsdale, New York, and NPI 1245587005, issued on Aug 12, 2012. Check the license (New York 086265-1, 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
1245587005
Name
Irwin Marvin Dannis
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
086265-1 NY
Self-reported in NPPES; status is on the state search
Practice location
31 Club Way, Hartsdale, NY 10530
Phone
(914) 725-5809
Enumerated
Aug 12, 2012
Record last updated
Aug 12, 2012 (not updated in 14 years: call before relying on the address or phone)
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 Irwin Marvin Dannis 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 086265-1
    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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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

63 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Irwin Dannis63
  2. Specialty average3,176

Most prescribed

  1. Xarelto24 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.

Irwin Marvin Dannis among 12,067 internal medicine physician records in New York

Irwin Marvin Dannis, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% 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 68% of them.

  • NPI issued2012 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2012 · 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 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 internal medicine physician records list a practice address in Hartsdale

They are 7 of the 598 NPPES records with a practice address in Hartsdale, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Carol Allen, M.D.Hartsdale, NY 105301164440772
  2. Hirokazu Ban, MDHartsdale, NY 105301700140498
  3. Maki Kano-Lueckerath, MDHartsdale, NY 105301306813043
  4. Changqing Li, MDHartsdale, NY 105301902480023
  5. Avner Reggev, M.D.Hartsdale, NY 105301972611614
  6. Kiran Saraf, M.DHartsdale, NY 105301033213426
  7. Amanda Benza, FNP-CHarrison, NY 105281326668583
  8. Maria Capparelli, MDHawthorne, NY 105321245463983

Common questions

What is Irwin Marvin Dannis, M.D.'s NPI number?

Irwin Marvin Dannis, M.D.'s National Provider Identifier (NPI) is 1245587005, issued on Aug 12, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Irwin Marvin Dannis, M.D. located?

The NPPES record lists a practice address at 31 Club Way, Hartsdale, NY, 10530. Phone: (914) 725-5809. Providers update this record themselves, so call before visiting.

How can I verify Irwin Marvin Dannis, M.D.'s license?

NPPES lists New York license number 086265-1, 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 Irwin Marvin Dannis, M.D. prescribe under Medicare Part D?

In 2024, Irwin Marvin Dannis, M.D. had 63 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.