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DR. KRISTEN E DAY M.D.
NPI 1689826141
Pediatrics in Bozeman, MT

Active since October 15, 2008PECOS Enrolled
875 S COTTONWOOD RD STE 300, BOZEMAN, MT 59718(406) 414-4100(406) 414-4199 Get Directions Write a Review

NPPES record last updated: April 15, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Kristen E Day M.d. NPPES

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

DR. KRISTEN E DAY M.D. (NPI 1689826141) is an individual pediatrics provider in Bozeman, Montana, licensed in Montana (18576) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS and maintains a secondary practice location in Bozeman.

NPPES Registry Identity

NPI1689826141
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. KRISTEN E DAYCredential: M.D.
Location Address875 S COTTONWOOD RD STE 300Bozeman, MT 59718-4208
Mailing Address915 Highland BlvdBozeman, MT 59715-6902 · (406) 414-5000
Phone(406) 414-4100
Fax(406) 414-4199
Sole ProprietorYes
Enumeration DateOctober 15, 2008
Last NPPES UpdateApril 15, 2025
NPPES CertifiedApril 15, 2025
✔ NPI 1689826141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in MT · 18576✔ Licensed in UT · 7152008-1205
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
875 S COTTONWOOD RD STE 300, Bozeman, MT 59718
Open in Google Maps ↗

Secondary Practice Location 1

Location 1915 Highland BlvdBozeman, MT 59715-6902 · Phone (406) 414-5700

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kristen E Day M.d. 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Kristen Day reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bozeman Health Deaconess Hospital
4.1 mi
Emergency Medicine
915 HIGHLAND BLVD
Bozeman, MT 59715
  • Reassigned Medicare billing, Montana enrollment
  • 402 clinicians in this Medicare group
NPI 1437529112 (406) 414-5000
Bozeman Health Big Sky Medical Center, LLC
30 mi
Family Medicine
334 TOWN CENTER AVENUE
Big Sky, MT 59716
  • Reassigned Medicare billing, Montana enrollment
  • 99 clinicians in this Medicare group
NPI 1740659952 (406) 995-6995

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59718 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
$87.97 typical visit price
range $56.81 – $172.26
Typical copayment $21.99 (range $14.20 – $43.06)
Most-billed visit code 99203
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 7

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

BOZEMAN HEALTH DEACONESS HOSPITAL
Family Medicine
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-4100
EILEEN RALICKE NP-C
Nurse Practitioner
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-4100
JOSEPH J SOFIANEK MD
Family Medicine
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-4100
ANGELA MARIE WATSCHKE DPT
Physical Therapist
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-4100
CHRISTINA M JAMIESON PA-C
Physician Assistant (Medical)
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-5336
DR. ZACHARY S MEYERS MD
Family Medicine
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-4100
DR. WILLIAM J. ALLEN JR. M.D.
Pediatrics
875 S COTTONWOOD RD STE 300
BOZEMAN, MT 59718
Gallatin County (406) 414-4100

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 Kristen Day's NPI number?

The NPI number for Kristen Day is 1689826141. It was assigned to this individual provider in the NPPES registry on October 15, 2008.

Where is Kristen Day located?

Kristen Day practices at 875 S Cottonwood Rd Ste 300, Bozeman, MT 59718. The listed phone number is (406) 414-4100.

What is Kristen Day's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Kristen Day enrolled in Medicare?

Yes. Kristen Day is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kristen Day's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Day reassigns Medicare benefits to 2 organizations: Bozeman Health Deaconess Hospital (Bozeman, MT) and Bozeman Health Big Sky Medical Center, LLC (Big Sky, MT). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kristen Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kristen Day accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Kristen Day as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Kristen Day was last updated on April 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.