Helen Ryan, MD
NPI 1477575793 · Hematology & Oncology Physician · Kennebunk, ME
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Ryan, MD is a Hematology & Oncology Physician provider in Kennebunk, ME (NPI 1477575793).
Provider details
- NPI number
- 1477575793
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 13302 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
331 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 111 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 92 | $82 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 43 | $86 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 42 | $136 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 31 | $181 |
| Biopsy and Aspiration of Bone Marrow Sample for Diagnosis38222 | 12 |
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 (4)
- 105 Topsham Fair Mall Rd Unit 1Topsham, ME 04086-1773Phone: (207) 303-3300Fax: (207) 250-2137
- 15 Rock Row Ste 110Westbrook, ME 04092-4877Phone: (207) 303-3300
- 11 Rock Row Ste 120Westbrook, ME 04092-4877Phone: (207) 303-3300Fax: (207) 250-2139
- 11 Rock Row Ste 150Westbrook, ME 04092-4877Phone: (207) 303-3300Fax: (207) 250-2139
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2026-04-20
- Certified
- 2026-04-20
Frequently asked questions
- What is Helen Ryan's NPI number?
- Helen Ryan's National Provider Identifier (NPI) is 1477575793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Ryan's specialty?
- Helen Ryan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Ryan located?
- Helen Ryan's practice location on file with NPPES is 2 Independence Dr, Kennebunk, ME 04043-6078.
- What is Helen Ryan's phone number?
- The practice phone number listed in the NPPES registry for Helen Ryan is (207) 303-3300.
- Does Helen Ryan accept Medicare?
- Helen Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Ryan's NPI active?
- Yes — Helen Ryan's NPI (1477575793) is active in the NPPES registry as of the last update on 2026-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.