Francis Oconnor, MD
NPI 1306819867 · Surgery Physician · Nantucket, MA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Francis Oconnor, MD is a Surgery Physician provider in Nantucket, MA (NPI 1306819867).
Provider details
- NPI number
- 1306819867
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 70941 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
83 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 53 | $147 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 17 | $248 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 13 | $126 |
Typical Medicare-allowed amounts for these services range $126–$248 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-07
- Last updated
- 2023-09-01
- Certified
- 2023-09-01
Frequently asked questions
- What is Francis Oconnor's NPI number?
- Francis Oconnor's National Provider Identifier (NPI) is 1306819867, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Francis Oconnor's specialty?
- Francis Oconnor is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Francis Oconnor located?
- Francis Oconnor's practice location on file with NPPES is 57 Prospect St, Nantucket, MA 02554-2799.
- What is Francis Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Francis Oconnor is (508) 825-8100.
- Does Francis Oconnor accept Medicare?
- Francis Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Francis Oconnor's NPI active?
- Yes — Francis Oconnor's NPI (1306819867) is active in the NPPES registry as of the last update on 2023-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.