Darren Rath, RPA-C
NPI 1558300558 · Medical Physician Assistant · Williamsville, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Rath, RPA-C is a Medical Physician Assistant provider in Williamsville, NY (NPI 1558300558).
Provider details
- NPI number
- 1558300558
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RPA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 005948-1 (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
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,095 | 174 |
| Gabapentin | 575 | 111 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 295 | 45 |
| Pregabalin | 175 | 30 |
| Tramadol Hcl | 146 | 33 |
| Duloxetine Hcl | 131 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,054 across 53 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
- 2006-06-05
- Last updated
- 2012-02-29
Frequently asked questions
- What is Darren Rath's NPI number?
- Darren Rath's National Provider Identifier (NPI) is 1558300558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Rath's specialty?
- Darren Rath is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Darren Rath located?
- Darren Rath's practice location on file with NPPES is 100 College Parkway, Williamsville, NY 14221.
- What is Darren Rath's phone number?
- The practice phone number listed in the NPPES registry for Darren Rath is (716) 626-9900.
- Does Darren Rath accept Medicare?
- Darren Rath is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Rath's NPI active?
- Yes — Darren Rath's NPI (1558300558) is active in the NPPES registry as of the last update on 2012-02-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.