Frederick Cook, MD
NPI 1720076045 · Ophthalmology Physician · Rehoboth Beach, DE
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Cook, MD is a Ophthalmology Physician provider in Rehoboth Beach, DE (NPI 1720076045).
Provider details
- NPI number
- 1720076045
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C1-0003870 (DE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,743 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 877 | $123 |
| Imaging of Optic Nerve92133 | 216 | $36 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 165 | $56 |
| Exam of Visual Field With Extended Testing92083 | 162 | $62 |
| New Patient Complete Exam of Visual System92004 | 93 | $146 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 84 | $90 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 525 | 175 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 178 | 55 |
| Timolol Maleate | 141 | 49 |
| Brimonidine Tartrate | 35 | 12 |
| Travoprost | 35 | 11 |
| Dorzolamide Hcl | 32 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 28 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$164 across 8 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
- 2005-10-11
- Last updated
- 2014-09-16
Frequently asked questions
- What is Frederick Cook's NPI number?
- Frederick Cook's National Provider Identifier (NPI) is 1720076045, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Cook's specialty?
- Frederick Cook is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Cook located?
- Frederick Cook's practice location on file with NPPES is 18791 John J Williams Hwy, Rehoboth Beach, DE 19971-4401.
- What is Frederick Cook's phone number?
- The practice phone number listed in the NPPES registry for Frederick Cook is (302) 645-2300.
- Does Frederick Cook accept Medicare?
- Frederick Cook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Cook's NPI active?
- Yes — Frederick Cook's NPI (1720076045) is active in the NPPES registry as of the last update on 2014-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.