Gerard Guzman, RPA-C
NPI 1790903862 · Physician Assistant · Port Jefferson Station, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerard Guzman, RPA-C is a Physician Assistant provider in Port Jefferson Station, NY (NPI 1790903862).
Provider details
- NPI number
- 1790903862
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RPA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 004010 (NY)
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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 139 | 15 |
| Levothyroxine Sodium | 95 | 15 |
| Mirtazapine | 75 | — |
| Tamsulosin Hcl | 73 | — |
| Atorvastatin Calcium | 73 | — |
| Furosemide | 62 | — |
| Donepezil Hcl | 58 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 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
Additional practice locations (1)
- 101 Hospital RdEast Patchogue, NY 11772-4870Phone: (631) 654-7100
Registry dates
- Enumerated
- 2007-04-23
- Last updated
- 2019-12-16
- Certified
- 2019-12-16
Frequently asked questions
- What is Gerard Guzman's NPI number?
- Gerard Guzman's National Provider Identifier (NPI) is 1790903862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerard Guzman's specialty?
- Gerard Guzman is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gerard Guzman located?
- Gerard Guzman's practice location on file with NPPES is 4724 Nesconset Hwy, Port Jefferson Station, NY 11776-2580.
- What is Gerard Guzman's phone number?
- The practice phone number listed in the NPPES registry for Gerard Guzman is (631) 474-5900.
- Does Gerard Guzman accept Medicare?
- Gerard Guzman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerard Guzman's NPI active?
- Yes — Gerard Guzman's NPI (1790903862) is active in the NPPES registry as of the last update on 2019-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.