Benjamin Trewyn
NPI 1558977165 · Physician Assistant · Davenport, IA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Trewyn is a Physician Assistant provider in Davenport, IA (NPI 1558977165).
Provider details
- NPI number
- 1558977165
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
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 tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
131 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 67 | $99 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 53 | $141 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 11 | $58 |
Typical Medicare-allowed amounts for these services range $58–$141 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nifedipinebrand: Nifedipine Er | 52 | — |
| Cinacalcet Hcl | 49 | — |
| Lisinopril | 44 | — |
| Prednisone | 15 | 15 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 | 13 |
| Cephalexin | 11 | 11 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-09-18
- Last updated
- 2020-09-18
- Certified
- 2020-09-18
Frequently asked questions
- What is Benjamin Trewyn's NPI number?
- Benjamin Trewyn's National Provider Identifier (NPI) is 1558977165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Trewyn's specialty?
- Benjamin Trewyn is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Benjamin Trewyn located?
- Benjamin Trewyn's practice location on file with NPPES is 518 W Locust St, Davenport, IA 52803-2829.
- What is Benjamin Trewyn's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Trewyn is (563) 320-3169.
- Does Benjamin Trewyn accept Medicare?
- Benjamin Trewyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Trewyn's NPI active?
- Yes — Benjamin Trewyn's NPI (1558977165) is active in the NPPES registry as of the last update on 2020-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.