NPPES file of Aug 9, 2026

Daniel York Reuben, MD

Hematology & Oncology Physician · Fairfield, CT

Daniel York Reuben, MD is a hematology & oncology physician with a practice address in Fairfield, Connecticut, and NPI 1619979416, issued on Aug 11, 2005. Check the license (Connecticut 39627, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1619979416
Name
Daniel York Reuben
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
39627 CT
37540 SC
Self-reported in NPPES; status is on the state search
Practice location
425 Post RD Ste 204, Fairfield, CT 06824
Phone
(203) 255-4545
Enumerated
Aug 11, 2005
Record last updated
Jul 3, 2024
Medicaid ID
001396276 CT
Medicare enrollment
Enrolled (PECOS I20040625000509); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 1998
Telehealth
Offers telehealth (CMS)
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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Verify Daniel York Reuben in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 39627
    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 Connecticut license search

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70% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

265 Medicare Part D claims for 47 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 31 claims were for opioids.

  1. Daniel Reuben265
  2. Specialty average877

Most prescribed

  1. Braftovi24 claims
  2. Mektovi24 claims
  3. Oxycodone Hcl24 claims
  4. Prochlorperazine Maleate24 claims
  5. Levothyroxine Sodium23 claims
  6. Dexamethasone12 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: $450.13

19 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daniel Reuben$450.13
  2. Specialty average$7,481.41

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

Bills Medicare through 2 group practices

  1. Hartford Healthcare Medical Group Specialists PLLCStorrs, CT
  2. Svmc Holdings, IncFairfield, CT

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

Daniel York Reuben among 198 hematology & oncology physician records in Connecticut

Daniel York Reuben, MD is one of 198 hematology & oncology physician records with a practice address in Connecticut. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1998 · median 2003 among the 139 with a school on file
  • Record last updated2024 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Connecticut

There are 198 hematology & oncology physician records in Connecticut.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Paul Berard, MDFairfield, CT 068241699773804
  2. Sandhya Dhanjal, MDFairfield, CT 068241093924417
  3. Edward Duda, MDFairfield, CT 068241669469292
  4. Glen Reznikoff, M.D.Fairfield, CT 068241457348088
  5. Hervey Weitzman, MDFairfield, CT 068251124026406
  6. Julie Gold, M.D.Greenwich, CT 068301992739742
  7. Donald Boyd, M.D.Greenwich, CT 068311396826376
  8. Martin Abrams, M.D.Danbury, CT 068101073507851

Common questions

What is Daniel York Reuben, MD's NPI number?

Daniel York Reuben, MD's National Provider Identifier (NPI) is 1619979416, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Daniel York Reuben, MD located?

The NPPES record lists a practice address at 425 Post RD Ste 204, Fairfield, CT, 06824. Phone: (203) 255-4545. Providers update this record themselves, so call before visiting.

How can I verify Daniel York Reuben, MD's license?

NPPES lists Connecticut license number 39627, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Daniel York Reuben, MD prescribe under Medicare Part D?

In 2024, Daniel York Reuben, MD had 265 Medicare Part D claims for 47 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.