RUTH JAHN
NPI 1821484858
Nurse Anesthetist, Certified Registered in Calais, ME
About Ruth Jahn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUTH JAHN (NPI 1821484858) is an individual nurse anesthetist, certified registered in Calais, Maine, licensed in Maine (RNA153016) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with Penobscot Bay Medical Center, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
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
Ruth Jahn 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 Ruth Jahn reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Calais, ME 04619
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: Calais Regional Hospital
- 24 clinicians in this Medicare group
Belfast, ME 04915
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Rockport, ME 04856
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: Penobscot Bay Medical Center
- 59 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Penobscot Bay Medical Center
Acute Care Hospitals · Rockport, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04619 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 20
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 Ruth Jahn's NPI number?
The NPI number for Ruth Jahn is 1821484858. It was assigned to this individual provider in the NPPES registry on April 7, 2015.
Where is Ruth Jahn located?
Ruth Jahn practices at 24 Hospital Ln, Calais, ME 04619. The listed phone number is (207) 454-7521.
What is Ruth Jahn's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Ruth Jahn enrolled in Medicare?
Yes. Ruth Jahn 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 Ruth Jahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Jahn reassigns Medicare benefits to 3 organizations: Calais Community Hospital (Calais, ME), Mainehealth (Belfast, ME) and Mainehealth (Rockport, 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 Ruth Jahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ruth Jahn affiliated with any hospitals?
According to CMS data, Ruth Jahn is affiliated with Penobscot Bay Medical Center.
When was this NPI record last updated?
The NPPES record for Ruth Jahn was last updated on February 16, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Ruth Jahn · NPI 1821484858
Nurse Anesthetist, Certified Registered physician in Calais, Maine. Individual provider, active in the CMS NPPES registry since April 7, 2015.
## Identity
- **NPI:** 1821484858 (Entity type: Individual)
- **Enumerated:** April 7, 2015
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RNA153016 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 24 HOSPITAL LN, Calais, ME 04619-1329
- **Phone:** (207) 454-7521 · **Fax:** (207) 795-2766
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Calais Community Hospital (NPI 1922001049, Calais, ME); Mainehealth (NPI 1265912075, Belfast, ME); Mainehealth (NPI 1982645305, Rockport, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** February 16, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1821484858) · Data from the CMS NPPES public registry.