HOSPITAL MEDICINE SERVICES OF MAINE LLC
NPI 1538638432
Hospitalist in Ellsworth, ME
About Hospital Medicine Services Of Maine Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOSPITAL MEDICINE SERVICES OF MAINE LLC (NPI 1538638432) is a healthcare organization registered as a hospitalist in Ellsworth, Maine and active in the NPI registry since November 2018. The organization maintains 3 additional practice locations and lists David J Istvan, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Hospital Medicine Services Of Maine Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
99Medicare enrollment records show 99 clinicians reassign Medicare billing to Hospital Medicine Services Of Maine LLC, which bills Medicare for the services they deliver. Of these, 7 practice at this address and 8 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 9
Nearest to this location (20)
See all 99Ellsworth, ME 04605
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Hospital Medicine Services Of Maine LLC's NPI number?
The NPI number for Hospital Medicine Services Of Maine LLC is 1538638432. It was assigned to this organization in the NPPES registry on November 20, 2018.
Where is Hospital Medicine Services Of Maine LLC located?
Hospital Medicine Services Of Maine LLC is located at 50 Union St, Ellsworth, ME 04605. The listed phone number is (865) 693-1000.
What is Hospital Medicine Services Of Maine LLC's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Hospital Medicine Services Of Maine LLC enrolled in Medicare?
Yes. Hospital Medicine Services Of Maine LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Hospital Medicine Services Of Maine LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 99 clinicians in 9 Medicare specialties reassign their Medicare billing to Hospital Medicine Services Of Maine LLC. A 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 the clinician's services. The largest specialties are Internal Medicine (54), Nurse Practitioner (20) and Family Practice (9). Of these, 7 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Hospital Medicine Services Of Maine LLC accept?
Health plans from Anthem Blue Cross and Blue Shield list Hospital Medicine Services Of Maine LLC 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.
When was this NPI record last updated?
The NPPES record for Hospital Medicine Services Of Maine LLC was last updated on September 16, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.