JEAN M LARSON MD
NPI 1033206941
Internal Medicine - Gastroenterology in Bangor, ME
About Jean M Larson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JEAN M LARSON MD (NPI 1033206941) is an individual gastroenterology provider in Bangor, Maine, licensed in Maine (018950) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of University Of Wisconsin School Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
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
Jean M Larson 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 Reassignment
Medicare enrollment records show Jean Larson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bangor, ME 04401
- Reassigned Medicare billing, Maine enrollment
- 259 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 7
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Hospital
Acute Care Hospitals · Bangor, MECary Medical Center
Acute Care Hospitals · Caribou, MENorthern Light Eastern Maine Medical Center
Acute Care Hospitals · Bangor, MENorthern Light Mayo Hospital
Critical Access Hospitals · Dover Foxcroft, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04401 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 4
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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BANGOR, ME 04401
BANGOR, ME 04401
BANGOR, ME 04401
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 Jean Larson's NPI number?
The NPI number for Jean Larson is 1033206941. It was assigned to this individual provider in the NPPES registry on October 10, 2006.
Where is Jean Larson located?
Jean Larson practices at 417 State St Ste 121, Bangor, ME 04401. The listed phone number is (207) 973-4266.
What is Jean Larson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Jean Larson enrolled in Medicare?
Yes. Jean Larson 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 organization bills Medicare for Jean Larson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jean Larson reassigns Medicare benefits to St. Joseph Hospital (Bangor, ME). The 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 Jean Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jean Larson affiliated with any hospitals?
According to CMS data, Jean Larson is affiliated with St Joseph Hospital, Cary Medical Center, Northern Light Eastern Maine Medical Center and Northern Light Mayo Hospital.
When was this NPI record last updated?
The NPPES record for Jean Larson was last updated on February 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Jean M Larson, MD · NPI 1033206941
Gastroenterology physician in Bangor, Maine. Individual provider, active in the CMS NPPES registry since October 10, 2006.
## Identity
- **NPI:** 1033206941 (Entity type: Individual)
- **Enumerated:** October 10, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 018950 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 417 STATE ST STE 121, Bangor, ME 04401-6630
- **Phone:** (207) 973-4266 · **Fax:** (207) 973-5151
## 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:** St. Joseph Hospital (NPI 1154321545, Bangor, ME), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** February 28, 2012
- **Other identifiers:** Medicaid 1033206941 (ME); Medicare UPIN RES000 (FL); Medicare PIN AJ288Z; and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1033206941) · Data from the CMS NPPES public registry.