DANIEL WILLIAM O'NEILL (M.D.) – Internal Medicine Physician, NPI 1972578508
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
822 FAMILY PRACTICE in CT
Provider Addresses for DANIEL WILLIAM O'NEILL (M.D.)
330 Pomfret St
Putnam, CT 062603803
Phone: (860) 928-7704
Fax: (860) 928-4092
Type: Location
7, Kennedy Drive, Putnam, Northeastern Connecticut Planning Region, Connecticut, 06260, United States
PUTNAM, CT 062601939
Phone: (860) 928-7704
Fax: (860) 928-4092
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 85 Open Payments records for all available years, with a total value of $1,699.
Total Amount is formed as General ($1,699) + Research ($0) + Ownership ($0) = $1,699.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: PFIZER INC. ($285).
Total Amount
$1,699
General + Research + Ownership
Payments
85
Total payment records
General Amount
$1,699
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $285 |
| Novo Nordisk Inc | $258 |
| AstraZeneca Pharmaceuticals LP | $170 |
| Axsome Therapeutics, Inc. | $125 |
| Lilly USA, LLC | $108 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-01-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090122000005 | I | Family Practice | CT | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 382 | 191 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 145 | 101 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 54 | 13 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 36 | 36 | $0 |
| 99496 | Transitional care management services for problem of high complexity | 27 | 25 | $0 |
Insurance plans in this area (ZIP 06260)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | CT | |
| Pediatric Medicine | CT | |
| Nurse Practitioner | MA | |
| - | CT | |
| - | CT | |
| D E R M A T O L O G Y | CT | |
| Hospitalist, Internal Medicine, Internal Medicine | NY | |
| P O D I A T R Y | CT | |
| Family Practice | IN | |
| Internal Medicine | CT |
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