Christopher Duffy, PA
NPI 1649817552 · Medical Physician Assistant · Sarasota, FL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Duffy, PA is a Medical Physician Assistant provider in Sarasota, FL (NPI 1649817552).
Provider details
- NPI number
- 1649817552
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 9112579 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
157 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Replacement of Knee Joint, Both Sides of Knee27447 | 64 | $176 |
| Replacement of Thigh Bone and Hip Joint With Prosthesis27130 | 48 | $176 |
| Treatment of Broken Neck of Thigh Bone With Bone Implant27245 | 17 | $168 |
| Prosthetic Repair of Shoulder Joint, Total Shoulder23472 | 14 | $193 |
| Treatment of Upper End of Broken Thigh Bone With Placement of Stabilizing Device Or Prosthetic Replacement27236 | 14 | $163 |
Typical Medicare-allowed amounts for these services range $163–$193 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$37 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-12-10
- Last updated
- 2020-10-20
- Certified
- 2020-10-20
Frequently asked questions
- What is Christopher Duffy's NPI number?
- Christopher Duffy's National Provider Identifier (NPI) is 1649817552, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Duffy's specialty?
- Christopher Duffy is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christopher Duffy located?
- Christopher Duffy's practice location on file with NPPES is 2123 Grove St, Sarasota, FL 34239-4622.
- What is Christopher Duffy's phone number?
- The practice phone number listed in the NPPES registry for Christopher Duffy is (239) 209-1415.
- Does Christopher Duffy accept Medicare?
- Christopher Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Duffy's NPI active?
- Yes — Christopher Duffy's NPI (1649817552) is active in the NPPES registry as of the last update on 2020-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.