Karen Ahlstrom, MD - Medicare Otolaryngology in Missoula, MT

Karen Ahlstrom, MD is a medicare enrolled "Otolaryngology" physician in Missoula, Montana. She went to University Of Arizona College Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Otolaryngology. She is a member of the group practice Rocky Mountain Ear Nose And Throat Center Pc, Marcus Daly Memorial Hospital Corporation and her current practice location is 700 W Kent Ave, Missoula, Montana. You can reach out to her office (for appointments etc.) via phone at (406) 541-3277.

Karen Ahlstrom is licensed to practice in Montana (license number 129134) 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 1922058031.

Contact Information

Karen Ahlstrom, MD
700 W Kent Ave,
Missoula, MT 59801-6772
(406) 541-3277
(406) 541-3811

Map and Direction




Physician's Profile

Full NameKaren Ahlstrom
GenderFemale
SpecialityOtolaryngology
Experience28 Years
Location700 W Kent Ave, Missoula, Montana
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:
  • Karen Ahlstrom attended and graduated from University Of Arizona College Of Medicine in 1996
  NPI Data:
  • NPI Number: 1922058031
  • Provider Enumeration Date: 05/11/2006
  • Last Update Date: 09/26/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8224164264
  • Enrollment ID: I20230825003329

Medical Identifiers

Medical identifiers for Karen Ahlstrom such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922058031NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology MD00039605 (Washington)Secondary
207Y00000XOtolaryngology 129134 (Montana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Marcus Daly Memorial Hospital - CahHamilton, MTHospital
Community Medical CenterMissoula, MTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Rocky Mountain Ear Nose And Throat Center Pc367847209917
Marcus Daly Memorial Hospital Corporation559766447478

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. Karen Ahlstrom allows following entities to bill medicare on her behalf.
Entity NameRocky Mountain Ear Nose & Throat
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306857917
PECOS PAC ID: 3678472099
Enrollment ID: O20040105000867
Entity NameMarcus Daly Memorial Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659475846
PECOS PAC ID: 5597664474
Enrollment ID: O20040202001033
Entity NameMarcus Daly Memorial Hospital Corporation
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1659475846
PECOS PAC ID: 5597664474
Enrollment ID: O20061104000439

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. Karen Ahlstrom 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
Karen Ahlstrom, MD
700 W Kent Ave,
Missoula, MT 59801-6772

Ph: (406) 541-3277
Karen Ahlstrom, MD
700 W Kent Ave,
Missoula, MT 59801-6772

Ph: (406) 541-3277

Reviews and Comments


Otolaryngology Doctors in Missoula, MT

Phillip A Gardner, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 700 W Kent Ave, Missoula, MT 59801
Phone: 406-541-3277    Fax: 406-541-3811
Bradley Morris, MD
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 535 Evan Kelly Rd, Missoula, MT 59802
Phone: 406-728-3855    
Jeffrey Haller, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 700 W Kent Ave, Missoula, MT 59801
Phone: 406-541-3277    Fax: 406-541-3950
Dr. Thomas Clark Hoshaw, M.D.
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 700 W Kent Ave, Missoula, MT 59801
Phone: 406-541-3277    
David Mark Hayes, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 700 W Kent Ave, Missoula, MT 59801
Phone: 406-541-3804    Fax: 406-541-3950
Daniel Edward Braby, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 700 W Kent Ave, Missoula, MT 59801
Phone: 406-541-3277    Fax: 406-541-3950
Peter Gordon Vondoersten, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 700 W Kent Ave, Missoula, MT 59801
Phone: 406-541-3277    Fax: 406-541-3950

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.