Elizabeth Arena Arena, DO, MPH - Medicare Internal Medicine in Grand Junction, CO

Elizabeth Arena Arena, DO, MPH is a medicare enrolled "Internal Medicine - Rheumatology" physician in Grand Junction, Colorado. She went to Nova Southeastern College Of Osteo Medicine and graduated in 2006 and has 20 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Intermountain Medical Group Grand Junction, Llc and her current practice location is St Mary's Regional Medical Center 2635 N 7th St, 4th Floor, Grand Junction, Colorado. You can reach out to her office (for appointments etc.) via phone at (970) 298-5910.

Elizabeth Arena Arena is licensed to practice in Montana (license number 113913) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1881878759.

Contact Information

Elizabeth Arena Arena, DO, MPH
St Mary's Regional Medical Center 2635 N 7th St, 4th Floor,
Grand Junction, CO 81501
(970) 298-5910
(970) 298-7761

Map and Direction




Physician's Profile

Full NameElizabeth Arena Arena
GenderFemale
SpecialityInternal Medicine
Experience20 Years
LocationSt Mary's Regional Medical Center 2635 N 7th St, Grand Junction, Colorado
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Elizabeth Arena Arena attended and graduated from Nova Southeastern College Of Osteo Medicine in 2006
  NPI Data:
  • NPI Number: 1881878759
  • Provider Enumeration Date: 12/27/2007
  • Last Update Date: 12/16/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 9234309618
  • Enrollment ID: I20190508002386

Medical Identifiers

Medical identifiers for Elizabeth Arena Arena such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1881878759NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology DR.0061640 (Colorado)Secondary
207RR0500XInternal Medicine - Rheumatology 113913 (Montana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Marys Medical CenterGrand junction, COHospital
Aspen Valley HospitalAspen, COHospital
Community HospitalGrand junction, COHospital
Delta County Memorial HospitalDelta, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Intermountain Medical Group Grand Junction, Llc3779707856245

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Elizabeth Arena Arena allows following entities to bill medicare on her behalf.
Entity NameIntermountain Medical Group Grand Junction, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356765556
PECOS PAC ID: 3779707856
Enrollment ID: O20140611000363

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Elizabeth Arena Arena is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Elizabeth Arena Arena, DO, MPH
1401 25th St S,
Great Falls, MT 59405-5183

Ph: (406) 731-8888
Elizabeth Arena Arena, DO, MPH
St Mary's Regional Medical Center 2635 N 7th St, 4th Floor,
Grand Junction, CO 81501

Ph: (970) 298-5910

Reviews and Comments


Internal Medicine Doctors in Grand Junction, CO

Alexandra E Straight, MD
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 2748 Crossroads Blvd, Grand Junction, CO 81506
Phone: 970-255-0919    Fax: 970-255-0901
Dr. Ellen Ablog Dy, M.D.
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 1035 Wellington Ave, Grand Junction, CO 81501
Phone: 970-242-6600    Fax: 970-241-8443
James W Thompson, M.D.
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 1050 Wellington Ave, Grand Junction, CO 81501
Phone: 970-298-5864    Fax: 970-298-5888
Gary Lee Snyder, MD
Rheumatology
Medicare: Not Enrolled in Medicare
Practice Location: 425 Patterson Rd, Ste 605, Grand Junction, CO 81506
Phone: 970-244-2482    Fax: 970-255-1701
Dr. Brent James Prosser, M.D.
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 1035 Wellington Ave, Grand Junction, CO 81501
Phone: 970-242-6600    Fax: 970-241-8443
Dr. David Russell Scott, M.D.
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 1120 Wellington Ave, Grand Junction, CO 81501
Phone: 970-241-0170    
Mitchell Gershten, M.D.
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 2635 N 7th St, Suite 4205, Grand Junction, CO 81501
Phone: 970-298-1995    Fax: 970-298-1992

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.