CATHERINE R FREDRICKS-REHAGEN DO
NPI 1821257650
Internal Medicine in Bath, ME
About Catherine R Fredricks-rehagen Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE R FREDRICKS-REHAGEN DO (NPI 1821257650) is an individual internal medicine provider in Bath, Maine, licensed in Maine (2231) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and is a graduate of University Of New England, College Of Osteo Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Catherine R Fredricks-rehagen Do 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
2Medicare enrollment records show Catherine Fredricks-rehagen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brunswick, ME 04011
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Westbrook, ME 04092
- Reassigned Medicare billing, Maine enrollment
- 206 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 3
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light Health
Acute Care Hospitals · Portland, MEMaine Medical Center
Acute Care Hospitals · Portland, MEMid Coast Hospital
Acute Care Hospitals · Brunswick, MEMaine General Medical Center
Acute Care Hospitals · Augusta, MELincolnhealth
Critical Access Hospitals · Damariscotta, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04530 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Catherine Fredricks-rehagen's NPI number?
The NPI number for Catherine Fredricks-rehagen is 1821257650. It was assigned to this individual provider in the NPPES registry on June 6, 2008.
Where is Catherine Fredricks-rehagen located?
Catherine Fredricks-rehagen practices at 108 Centre St, Bath, ME 04530. The listed phone number is (207) 386-1800.
What is Catherine Fredricks-rehagen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Catherine Fredricks-rehagen enrolled in Medicare?
Yes. Catherine Fredricks-rehagen 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 Catherine Fredricks-rehagen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Fredricks-rehagen reassigns Medicare benefits to 2 organizations: Mainehealth (Brunswick, ME) and Maine Medical Partners (Westbrook, ME). 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 Catherine Fredricks-rehagen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Catherine Fredricks-rehagen accept?
Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Catherine Fredricks-rehagen 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 Catherine Fredricks-rehagen affiliated with any hospitals?
According to CMS data, Catherine Fredricks-rehagen is affiliated with Northern Light Health, Maine Medical Center, Mid Coast Hospital, Maine General Medical Center and Lincolnhealth.
When was this NPI record last updated?
The NPPES record for Catherine Fredricks-rehagen was last updated on February 5, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.
# Catherine R Fredricks-Rehagen, DO · NPI 1821257650
Internal Medicine physician in Bath, Maine. Individual provider, active in the CMS NPPES registry since June 6, 2008.
## Identity
- **NPI:** 1821257650 (Entity type: Individual)
- **Enumerated:** June 6, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 2231 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 108 CENTRE ST, Bath, ME 04530-2550
- **Phone:** (207) 386-1800 · **Fax:** (207) 386-1801
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Mainehealth (NPI 1902422561, Brunswick, ME); Maine Medical Partners (NPI 1790896876, Westbrook, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2008
## Record status
- **NPPES last updated:** February 5, 2016
- **Other identifiers:** Other 12297912; Medicare PIN 2486101
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Source: [NPI Profile](https://npiprofile.com/npi/1821257650) · Data from the CMS NPPES public registry.