DR. HELEN F. RYAN MD
NPI 1477575793
Internal Medicine - Hematology & Oncology in Kennebunk, ME
About Dr. Helen F. Ryan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HELEN F. RYAN MD (NPI 1477575793) is an individual hematology & oncology provider in Kennebunk, Maine, licensed in Maine (017287) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Central Maine Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Helen F. Ryan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Helen Ryan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westbrook, ME 04092
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: Maine Center For Cancer Medicine & Blood Disorders PA
- 71 clinicians in this Medicare group
Lewiston, ME 04240
- Reassigned Medicare billing, Maine enrollment
- 920 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1346433257 (Massachusetts)
- 1,026 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Central Maine Medical Center
Acute Care Hospitals · Lewiston, MEBrigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04043 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KENNEBUNK, ME 04043
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Helen Ryan's NPI number?
The NPI number for Helen Ryan is 1477575793. It was assigned to this individual provider in the NPPES registry on July 24, 2006.
Where is Helen Ryan located?
Helen Ryan practices at 2 Independence Dr, Kennebunk, ME 04043. The listed phone number is (207) 303-3300.
What is Helen Ryan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Helen Ryan enrolled in Medicare?
Yes. Helen Ryan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Helen Ryan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Helen Ryan reassigns Medicare benefits to 3 organizations: Maine Center For Cancer Medicine & Blood Disorders, P.A. (Westbrook, ME), Central Maine Medical Center (Lewiston, ME) and Dana-Farber Cancer Institute, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Helen Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Helen Ryan accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Taro Health and WellSense Health Plan list Helen Ryan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Helen Ryan affiliated with any hospitals?
According to CMS data, Helen Ryan is affiliated with Central Maine Medical Center and Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Helen Ryan was last updated on April 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Helen F. Ryan, MD · NPI 1477575793
Hematology & Oncology physician in Kennebunk, Maine. Individual provider, active in the CMS NPPES registry since July 24, 2006.
## Identity
- **NPI:** 1477575793 (Entity type: Individual)
- **Enumerated:** July 24, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 017287 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 2 INDEPENDENCE DR, Kennebunk, ME 04043-6078
- **Phone:** (207) 303-3300 · **Fax:** (207) 250-2144
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Maine Center For Cancer Medicine & Blood Disorders, P.A. (NPI 1205896107, Westbrook, ME); Central Maine Medical Center (NPI 1689653487, Lewiston, ME); Dana-Farber Cancer Institute, Inc. (NPI 1851333686, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 1998
## Record status
- **NPPES last updated:** April 20, 2026
- **Other identifiers:** Other P00458871 (ME)
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Source: [NPI Profile](https://npiprofile.com/npi/1477575793) · Data from the CMS NPPES public registry.