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BIG SKY INTERNAL MEDICINE
NPI 1023100732
Internal Medicine in Lewistown, MT

Active since September 29, 2006
310 WENDELL AVE STE 101, LEWISTOWN, MT 59457(406) 535-1490(406) 535-1491 Get Directions Write a Review

NPPES record last updated: October 20, 2009. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Big Sky Internal Medicine NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BIG SKY INTERNAL MEDICINE (NPI 1023100732) is a healthcare organization registered as an internal medicine in Lewistown, Montana and active in the NPI registry since September 2006. The organization lists Janet L Grensten, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1023100732
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameBIG SKY INTERNAL MEDICINE
Location Address310 WENDELL AVE STE 101Lewistown, MT 59457-2267
Mailing Address310 Wendell Ave Ste 101Lewistown, MT 59457-2267 · (406) 535-1490 · Fax (406) 535-1491
Phone(406) 535-1490
Fax(406) 535-1491
Organization SubpartNo
Authorized OfficialJanet L GrenstenOffice Manager · (406) 535-1490
Enumeration DateSeptember 29, 2006
Last NPPES UpdateOctober 20, 2009
✔ NPI 1023100732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
310 WENDELL AVE STE 101, Lewistown, MT 59457
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Other Identifiers 1

Medicare ID-Type Unspecified000008992MT

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Big Sky Internal Medicine's NPI number?

The NPI number for Big Sky Internal Medicine is 1023100732. It was assigned to this organization in the NPPES registry on September 29, 2006.

Where is Big Sky Internal Medicine located?

Big Sky Internal Medicine is located at 310 Wendell Ave Ste 101, Lewistown, MT 59457. The listed phone number is (406) 535-1490.

What is Big Sky Internal Medicine's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Big Sky Internal Medicine was last updated on October 20, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.