NPPES file of Aug 9, 2026

Daniel Shipley O'Neil, M.D., M.P.H.

Medical Oncology Physician · Waterbury, CT

Daniel Shipley O'Neil, M.D., M.P.H. is a medical oncology physician with a practice address in Waterbury, Connecticut, and NPI 1962764209, issued on Jun 12, 2012. Check the license (Connecticut 72810, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962764209
Name
Daniel Shipley O'Neil
Credential
M.D., M.P.H.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
72810 CT
ME141021 FL
Self-reported in NPPES; status is on the state search
Practice location
1075 Chase Pkwy Ste B, Waterbury, CT 06708
Phone
(203) 755-6311
Enumerated
Jun 12, 2012
Record last updated
Nov 1, 2022
Medicare enrollment
Enrolled (PECOS I20230119002782); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2012
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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Also registered at 1075 Chase Pkwy Ste B

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

  1. Sharynn Hall, M.D.Hematology & Oncology Physician1538276118

Verify Daniel Shipley O'Neil in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 72810
    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

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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29% fewer Medicare Part D claims than the average medical oncology physician in 2024

498 Medicare Part D claims for 107 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Daniel O'Neil498
  2. Specialty average703

Most prescribed

  1. Anastrozole164 claims
  2. Tamoxifen Citrate65 claims
  3. Exemestane28 claims
  4. Gabapentin16 claims
  5. Alendronate Sodium14 claims
  6. Ondansetron Odt14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Yale UniversityNew Haven, CT

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

Daniel Shipley O'Neil among 99 medical oncology physician records in Connecticut

Daniel Shipley O'Neil, M.D., M.P.H. is one of 99 medical oncology physician records with a practice address in Connecticut. 73% 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 69% of them.

  • NPI issued2012 · 69% of these records are older, 28% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2012 · median 2005 among the 66 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Connecticut

There are 99 medical oncology physician records in Connecticut.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Jedd Levine, M.D.Torrington, CT 067901376578054
  2. Ashita Talsania, M.D.Torrington, CT 067901942464276
  3. Robert Folman, MDTrumboll, CT 066111023102258
  4. Rosemary Mazanet, MDCos Cob, CT 068071477988764
  5. Tara Sanft, M.D.Fairfield, CT 068241730374562
  6. Beverly Drucker, MDGreenwich, CT 068301104834704
  7. Dickerman Hollister, MDGreenwich, CT 068301063420669
  8. Merlin Lee, MDGreenwich, CT 068301730292608

Common questions

What is Daniel Shipley O'Neil, M.D., M.P.H.'s NPI number?

Daniel Shipley O'Neil, M.D., M.P.H.'s National Provider Identifier (NPI) is 1962764209, issued on Jun 12, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Shipley O'Neil, M.D., M.P.H. located?

The NPPES record lists a practice address at 1075 Chase Pkwy Ste B, Waterbury, CT, 06708. Phone: (203) 755-6311. Providers update this record themselves, so call before visiting.

How can I verify Daniel Shipley O'Neil, M.D., M.P.H.'s license?

NPPES lists Connecticut license number 72810, 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 Shipley O'Neil, M.D., M.P.H. prescribe under Medicare Part D?

In 2024, Daniel Shipley O'Neil, M.D., M.P.H. had 498 Medicare Part D claims for 107 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Daniel Shipley O'Neil, M.D., M.P.H.'s MIPS final score?

The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.