ALAN B WILLIAMS MD PC – NPI #1811191133
Internal Medicine
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
ALAN B WILLIAMS MD PC is a provider located in KALISPELL, MT. NPPES has assigned the NPI number 1811191133 to ALAN B WILLIAMS MD PC on June 12, 2007. It is a Type-2 NPI, indicating this NPI number is associated with an organization. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RI0011X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Interventional Cardiology
The NPI profile was last updated on Sep 11, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for ALAN B WILLIAMS MD PC below.
NPI Profile for
ALAN B WILLIAMS MD PC
(about 19 years ago)
SUITE 2100
KALISPELL, MT 59901-3158 Phone: (406) 257-8992 Fax: (406) 257-8996
PRESIDENT
Phone: (406) 257-8992
Identifiers for ALAN B WILLIAMS MD PC
Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.
| Description | Issuer | State | Identifier |
|---|---|---|---|
| other | RAILROAD MEDICARE | MT | DA4800 |
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207RI0011X - Internal Medicine / Interventional Cardiology (Primary) |
||
| 207RC0000X - Internal Medicine / Cardiovascular Disease |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.