Garrisson Duvivier
NPI 1023715638 · Physician Assistant · New York, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1023715638
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA9324 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
536 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) |
|---|---|---|
| Fluoroscopic Guidance for Insertion Or Removal of Central Vein Access Device77001 | 140 | $16 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 129 | $11 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 119 | $12 |
| Insertion of Central Venous Tube With Port (5 Years Or Older)36561 | 76 | $293 |
| Insertion of Tunneled Central Venous Tube for Infusion (5 Years Or Older)36558 | 35 | $231 |
| Removal of Central Venous Tube With Port Or Pump36590 | 20 | $163 |
Practice location
Mailing address
Additional practice locations (1)
- 75 Francis StBoston, MA 02115-6106Phone: (617) 732-6248
Registry dates
- Enumerated
- 2023-02-14
- Last updated
- 2025-03-15
- Certified
- 2025-03-15
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.