Phillip S Key, MD - Medicare Otolaryngology in Billings, MT

Phillip S Key, MD is a medicare enrolled "Otolaryngology" physician in Billings, Montana. He went to Harvard Medical School and graduated in 1988 and has 36 years of diverse experience with area of expertise as Otolaryngology. He is a member of the group practice Billings Clinic and his current practice location is 801 N 29th St, Billings, Montana. You can reach out to his office (for appointments etc.) via phone at (406) 238-2500.

Phillip S Key is licensed to practice in Montana (license number 7887) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1780784355.

Contact Information

Phillip S Key, MD
801 N 29th St,
Billings, MT 59101-0905
(406) 238-2500
Not Available

Map and Direction




Physician's Profile

Full NamePhillip S Key
GenderMale
SpecialityOtolaryngology
Experience36 Years
Location801 N 29th St, Billings, Montana
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Phillip S Key attended and graduated from Harvard Medical School in 1988
  NPI Data:
  • NPI Number: 1780784355
  • Provider Enumeration Date: 09/24/2006
  • Last Update Date: 02/22/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9234271131
  • Enrollment ID: I20100114000658

Medical Identifiers

Medical identifiers for Phillip S Key such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780784355NPI-NPPES
0109499OtherMTMDCD PIN
112611300OtherWYMDCD PIN
000010441OtherMTBCBS PIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology 7887 (Montana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Billings ClinicBillings, MTHospital
St Vincent HealthcareBillings, MTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Billings Clinic6002993516659

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. Phillip S Key allows following entities to bill medicare on his behalf.
Entity NameBillings Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326104845
PECOS PAC ID: 6002993516
Enrollment ID: O20080430000212

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. Phillip S Key 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
Phillip S Key, MD
Po Box 35100,
Billings, MT 59107-5100

Ph: (406) 238-2500
Phillip S Key, MD
801 N 29th St,
Billings, MT 59101-0905

Ph: (406) 238-2500

Reviews and Comments


Otolaryngology Doctors in Billings, MT

Valerie A. Caton, FNP
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 2223 Mission Way, Billings, MT 59102
Phone: 406-237-8282    
Maria Cecilia Buniel, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 801 N 29th St, Billings, MT 59101
Phone: 406-238-2500    
Stephen A. Kramer, MD
Otolaryngology
Medicare: Not Enrolled in Medicare
Practice Location: 801 N 29th St, Billings, MT 59101
Phone: 406-238-2500    
Jennifer Gail Andrus, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 801 N 29th St, Billings, MT 59101
Phone: 406-238-2500    
Robin S. Horrell, MD
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 801 N 29th St, Billings, MT 59101
Phone: 406-238-2500    
Dr. Brian T Pelczar, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 2900 12th Ave N, Suite 350w, Billings, MT 59101
Phone: 406-238-6161    Fax: 406-238-6171
David Paul Larson,
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 801 N 29th St, Billings, MT 59101
Phone: 406-238-2500    

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.