Richard A. A. Day, MD
Neurological Surgery Physician · Hamilton, MT
Richard A. A. Day, MD is a neurological surgery physician with a practice address in Hamilton, Montana, and NPI 1447275854, issued on Jul 13, 2006. Check the license (Montana 8014, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Richard A. A. Day
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 8014 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1190 Westwood Dr, Hamilton, MT 59840
- Phone
- (406) 375-4714
- Enumerated
- Jul 13, 2006
- Record last updated
- May 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (406) 375-4709
- Medicaid IDs
- 1447275854 MT
1447275854 ID - Medicare enrollment
- Enrolled (PECOS I20130129000578); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1988
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 39 in Montana → Look up another NPI →
Verify Richard A. A. Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 8014Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average neurological surgery physician in 2024
79 Medicare Part D claims for 53 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 57 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen53 claims
- Methocarbamol11 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.
Industry payments in 2024: $113.48
3 payments; by number, the most common kind was food and beverage; the largest payer was SI-Bone, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Community Hospital OF AnacondaAnaconda, MT · Critical Access Hospitals5 of 5 stars
- Marcus Daly Memorial Hospital CorporationHamilton, MT
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.
Richard A. A. Day among 39 neurological surgery physician records in Montana
Richard A. A. Day, MD is one of 39 neurological surgery physician records with a practice address in Montana. 77% 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, 46% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1988 · median 2002 among the 27 with a school on file
- Record last updated2021 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Montana
There are 39 neurological surgery physician records in Montana.
All 39 in Montana → Every provider in Hamilton → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Anthony Russell, M.D.Missoula, MT 598031487975462
- Carter Beck, MDMissoula, MT 598021225022023
- Kenneth Brewington, MDMissoula, MT 598021154315695
- Henry Gary, M.D.Missoula, MT 598021700870599
- Chriss Mack, MDMissoula, MT 598021578557377
- David Slottje, M.D.Missoula, MT 598021720353873
- Frank Bishop, MDKalispell, MT 599011891982765
- Stephen Campbell, M.D.Kalispell, MT 599011174535132
Common questions
What is Richard A. A. Day, MD's NPI number?
Richard A. A. Day, MD's National Provider Identifier (NPI) is 1447275854, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard A. A. Day, MD located?
The NPPES record lists a practice address at 1190 Westwood Dr, Hamilton, MT, 59840. Phone: (406) 375-4714. Providers update this record themselves, so call before visiting.
How can I verify Richard A. A. Day, MD's license?
NPPES lists Montana license number 8014, 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 Richard A. A. Day, MD prescribe under Medicare Part D?
In 2024, Richard A. A. Day, MD had 79 Medicare Part D claims for 53 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
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.