Phillip S. Key, MD
Otolaryngology Physician · Billings, MT
Phillip S. Key, MD is an otolaryngology physician with a practice address in Billings, Montana, and NPI 1780784355, issued on Sep 24, 2006. Check the license (Montana 7887, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Phillip S. Key
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 7887 MT
Self-reported in NPPES; status is on the state search - Practice location
- 801 N 29TH St, Billings, MT 59101
- Phone
- (406) 238-2500
- Enumerated
- Sep 24, 2006
- Record last updated
- Feb 22, 2022
- Medicare enrollment
- Enrolled (PECOS I20100114000658); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1988
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 39 in Montana → Look up another NPI →
Also registered at 801 N 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bijan Andrade, DPMFoot & Ankle Surgery Podiatrist1891059556
Verify Phillip S. Key in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 7887Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average otolaryngology physician in 2024
348 Medicare Part D claims for 132 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate91 claims
- Ipratropium Bromide30 claims
- Amoxicillin-Clavulanate Potass27 claims
- Prednisone26 claims
- Neomycin-Polymyxin-Hc20 claims
- Esomeprazole Magnesium17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Billings ClinicBillings, MT · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Phillip S. Key among 39 otolaryngology physician records in Montana
Phillip S. Key, MD is one of 39 otolaryngology physician records with a practice address in Montana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 41% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1988 · median 2000 among the 30 with a school on file
- Record last updated2022 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Montana
There are 39 otolaryngology physician records in Montana.
All 39 in Montana → Every provider in Billings → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Jennifer Andrus, M.D.Billings, MT 591011265651137
- Maria Buniel, M.D.Billings, MT 591011215253232
- Paul Byorth, M.D.Billings, MT 591011891868485
- Robin Horrell, MDBillings, MT 591011497778302
- Cynthia Kennedy, M.D.Billings, MT 591011831135029
- David LarsonBillings, MT 591011639525298
- Brian Pelczar, M.D.Billings, MT 591011528004520
- Brett Bennion, MDSidney, MT 592701275616104
Common questions
What is Phillip S. Key, MD's NPI number?
Phillip S. Key, MD's National Provider Identifier (NPI) is 1780784355, issued on Sep 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Phillip S. Key, MD located?
The NPPES record lists a practice address at 801 N 29TH St, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.
How can I verify Phillip S. Key, MD's license?
NPPES lists Montana license number 7887, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Phillip S. Key, MD prescribe under Medicare Part D?
In 2024, Phillip S. Key, MD had 348 Medicare Part D claims for 132 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Phillip S. Key, MD's MIPS final score?
The 2023 MIPS final score is 94.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.