Alan B. Williams, M.D.
Interventional Cardiology Physician · Kalispell, MT
Alan B. Williams, M.D. is an interventional cardiology physician with a practice address in Kalispell, Montana, and NPI 1639104037, issued on Jul 12, 2006. Check the license (Montana 6679, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Alan B. Williams
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- 6679 MT
Self-reported in NPPES; status is on the state search - Practice location
- 350 Heritage Way, Kalispell, MT 59901
- Phone
- (406) 257-8992
- Enumerated
- Jul 12, 2006
- Record last updated
- Dec 15, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (406) 257-8996
- Medicaid ID
- 0073559 MT
- Entity
- Type 1 · individual
Also registered at 350 Heritage Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alan B. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 6679Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
19 Medicare Part D claims, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Interventional Cardiology Physician providers in Montana
There are 26 interventional cardiology physician records in Montana.
Other interventional cardiology physician records in Montana
- Shunsuke Aoi, M.D.Billings, MT1447593181
- Jay Bitar, MDButte, MT1396795928
- Edward Dean, MDBillings, MT1659376135
- Michael Eisenhauer, M.D.Great Falls, MT1821064510
- Sarah Fenton, MDHelena, MT1225078793
- Steven Goldberg, M.D.Great Falls, MT1548345374
- Nathaniel Hall, M.D.Kalispell, MT1063695948
- Ronald Henckel, MDBillings, MT1750510624
- William Highfill, MDKalispell, MT1497780845
- William Hull, DOButte, MT1922057389
Common questions
What is Alan B. Williams, M.D.'s NPI number?
Alan B. Williams, M.D.'s National Provider Identifier (NPI) is 1639104037, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alan B. Williams, M.D. located?
The NPPES record lists a practice address at 350 Heritage Way, Kalispell, MT, 59901. Phone: (406) 257-8992. Providers update this record themselves, so call before visiting.
How can I verify Alan B. Williams, M.D.'s license?
NPPES lists Montana license number 6679, 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 Alan B. Williams, M.D. prescribe under Medicare Part D?
In 2024, Alan B. Williams, M.D. had 19 Medicare Part D claims; the average among interventional cardiology physician prescribers was 3,179. 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.