Zachary Giesick
NPI 1871122705 · Physician Assistant · Hamden, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Giesick is a Physician Assistant provider in Hamden, CT (NPI 1871122705).
Provider details
- NPI number
- 1871122705
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
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
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
236 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) |
|---|---|---|
| Drainage of Fluid From Abdominal Cavity Using Imaging Guidance49083 | 114 | $86 |
| Aspiration of Fluid From Chest Cavity Using Imaging Guidance32555 | 47 | $87 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 33 | $41 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 | $107 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 14 | $61 |
| Removal of Spinal Fluid With Lower Back Spinal Tap for Diagnostic Test Using Imaging Guidance62328 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$326 across 3 records (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
- 2020-04-03
- Last updated
- 2022-03-10
- Certified
- 2022-03-10
Frequently asked questions
- What is Zachary Giesick's NPI number?
- Zachary Giesick's National Provider Identifier (NPI) is 1871122705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Giesick's specialty?
- Zachary Giesick is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Zachary Giesick located?
- Zachary Giesick's practice location on file with NPPES is 275 Mount Carmel Ave, Hamden, CT 06518-1961.
- What is Zachary Giesick's phone number?
- The practice phone number listed in the NPPES registry for Zachary Giesick is (203) 896-0132.
- Does Zachary Giesick accept Medicare?
- Zachary Giesick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Giesick's NPI active?
- Yes — Zachary Giesick's NPI (1871122705) is active in the NPPES registry as of the last update on 2022-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.