Doctor profile · Federal record

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

Medical Oncology Physician (CMS: Medical Oncology) · Medical Oncology Physician · Waterbury, CT

  • NPI 1962764209
  • Accepts Medicare
  • MIPS 71.7 / 100 · 2023
  • 14 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1075 Chase Pkwy Ste B
Waterbury, CT 067082948
(203) 755-6311
Additional location
333 Cedar Street, Www 205
New Haven, CT 06510
(203) 785-4095
fax (203) 785-4116
Mailing address
333 Cedar Street, Www 205
New Haven, CT 06510

Credentials & registration

NPPES · NUCC
NPI registered
June 2012 — 14 yrs on file
Profile last updated
November 1, 2022
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State licenses (2)
Connecticut #72810 · Florida #ME141021

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1962764209. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
110
Distinct HCPCS
4
Medicare allowed
$11,817
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 58 36 $103
99213 Established patient office or other outpatient visit, 20-29 minutes 24 21 $69
99205 New patient office or other outpatient visit, 60-74 minutes 17 17 $191
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 11 11 $88

In context: peer comparison

Among 1 peers in this city , average services per provider: 27. This provider delivers 4.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
124
Patients
48
Total drug cost
$8,704
Drug Type Claims Patients Total cost
Anastrozole Generic 73 37 $2,095
Tamoxifen Citrate Generic 24 11 $740
Exemestane Generic 16 0 $5,273
Dexamethasone Generic 11 0 $596

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel O'Neil's medical specialty?
Dr. Daniel O'Neil practices Medical Oncology Physician in Waterbury, CT.
Where does Dr. Daniel O'Neil practice?
Dr. Daniel O'Neil practices at 1075 Chase Pkwy Ste B, Waterbury, CT 067082948. Office phone: 2037556311.
What is Dr. Daniel O'Neil's NPI?
Dr. Daniel O'Neil's National Provider Identifier (NPI) is 1962764209, issued by NPPES.
Does Dr. Daniel O'Neil accept Medicare assignment?
Yes. Dr. Daniel O'Neil accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel O'Neil commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.