Sean Ryan, M.D.
NPI 1891991402 · Vascular Surgery Physician · Lewes, DE
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Ryan, M.D. is a Vascular Surgery Physician provider in Lewes, DE (NPI 1891991402).
Provider details
- NPI number
- 1891991402
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1891991402 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,276 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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 516 | $126 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 199 | $20 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 177 | $186 |
| Ultrasound Study of Arm and Leg Arteries93922 | 140 | $69 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 133 | $117 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 117 | $32 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 103 | 45 |
| Apixabanbrand: Eliquis | 35 | — |
| Cilostazol | 26 | — |
| Oxycodone Hcl | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11,447 across 38 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
Additional practice locations (2)
- 424 Savannah RdLewes, DE 19958-1462Phone: (302) 644-4954Fax: (302) 645-5481
- 19161 Healthy WayRehoboth Beach, DE 19971-4491Phone: (302) 644-4954Fax: (302) 645-5481
Registry dates
- Enumerated
- 2007-06-21
- Last updated
- 2025-09-02
- Certified
- 2025-09-02
Frequently asked questions
- What is Sean Ryan's NPI number?
- Sean Ryan's National Provider Identifier (NPI) is 1891991402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Ryan's specialty?
- Sean Ryan is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Ryan located?
- Sean Ryan's practice location on file with NPPES is 701 Savannah Rd Ste B, Lewes, DE 19958-1550.
- What is Sean Ryan's phone number?
- The practice phone number listed in the NPPES registry for Sean Ryan is (302) 644-4954.
- Does Sean Ryan accept Medicare?
- Sean Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Ryan's NPI active?
- Yes — Sean Ryan's NPI (1891991402) is active in the NPPES registry as of the last update on 2025-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.