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DR. EILEEN MARIA FRELIER MD
NPI 1275639833
Internal Medicine in Bozeman, MT

Active since September 14, 2006PECOS Enrolled
300 N WILLSON AVE STE 703G, BOZEMAN, MT 59715(406) 522-8923(406) 582-7599 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Eileen Maria Frelier Md NPPES

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

DR. EILEEN MARIA FRELIER MD (NPI 1275639833) is an individual internal medicine provider in Bozeman, Montana, licensed in Idaho (M7570) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275639833
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. EILEEN MARIA FRELIERCredential: MD
Location Address300 N WILLSON AVE STE 703GBozeman, MT 59715-3551
Mailing Address300 N Willson Ave Ste 703gBozeman, MT 59715-3551 · (406) 522-8923 · Fax (406) 582-7599
Phone(406) 522-8923
Fax(406) 582-7599
Sole ProprietorNo
Enumeration DateSeptember 14, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1275639833 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in ID · M7570
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.
300 N WILLSON AVE STE 703G, Bozeman, MT 59715
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Eileen Maria Frelier Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59715 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.52 typical visit price
range $56.81 – $172.26
Typical copayment $32.63 (range $14.20 – $43.06)
Most-billed visit code 99204
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HANNAH ELLEN BERGMAN PHD
Psychologist (Clinical)
300 N WILLSON AVE STE 703G
BOZEMAN, MT 59715
Gallatin County (406) 582-5312
MS. SHAUNNA LYNETTE KERSTEN N.P.
Nurse Practitioner (Adult Health)
300 N WILLSON AVE STE 703G
BOZEMAN, MT 59715
Gallatin County (406) 522-8923
MEGAN HUNSAKER PH.D.
Psychologist
300 N WILLSON AVE STE 703G
BOZEMAN, MT 59715
Gallatin County (406) 582-5313

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 Eileen Frelier's NPI number?

The NPI number for Eileen Frelier is 1275639833. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is Eileen Frelier located?

Eileen Frelier practices at 300 N Willson Ave Ste 703G, Bozeman, MT 59715. The listed phone number is (406) 522-8923.

What is Eileen Frelier's specialty?

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

Is Eileen Frelier enrolled in Medicare?

Yes. Eileen Frelier is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Eileen Frelier was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.