COUNTY OF FLATHEAD
NPI 1699892091
Public Health or Welfare in Kalispell, MT

Q: What is County Of Flathead's NPI number?

The NPI number for County Of Flathead is 1699892091. It was assigned to this organization in the NPPES registry on March 23, 2007. The provider is doing business as Flathead City-County Health Department.

Q: What is County Of Flathead's specialty?

The primary specialty registered for this NPI is Public Health or Welfare with taxonomy code 251K00000X.

Active since March 23, 2007

1035 1ST AVE W, KALISPELL, MT 59901(406) 751-8100(406) 751-8102 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 8, 2025, Nov 4, 2024 (2 updates tracked since 2024).

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About County Of Flathead NPPES

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

COUNTY OF FLATHEAD (NPI 1699892091), doing business as Flathead City-county Health Department, is a healthcare organization registered as a public health or welfare in Kalispell, Montana and active in the NPI registry since March 2007. The organization lists Jennifer Rankosky, Public Health Officer, as its authorized official.

NPPES Registry Identity

NPI1699892091

Entity TypeOrganization

Primary Taxonomy251K00000X

Legal Business NameCOUNTY OF FLATHEAD

Location Address1035 1ST AVE WKalispell, MT 59901-5607

Mailing Address1035 1st Avenue WestKalispell, MT 59901-5435 · (406) 751-8100 · Fax (406) 751-8102

Phone(406) 751-8100

Fax(406) 751-8102

Organization SubpartNo

Authorized OfficialJennifer RankoskyPublic Health Officer · (406) 751-8128

Enumeration DateMarch 23, 2007

Last NPPES UpdateDecember 8, 20252 updates tracked since enumeration

NPPES CertifiedDecember 8, 2025

✔ NPI 1699892091 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPublic Health or WelfareAgencies

Taxonomy Code251K00000X

License✔ Licensed in MT · 251K00000X

Also ListedCase ManagementTaxonomy 251B00000X

Also ListedCommunity/Behavioral HealthTaxonomy 251S00000X

Also ListedClinic/CenterTaxonomy 261Q00000X

1035 1ST AVE W, Kalispell, MT 59901

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Other Names 1

Doing Business AsFlathead City-county Health Department

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.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

County Of Flathead is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 11 clinicians reassign Medicare billing to County Of Flathead, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Family Practice5

Nurse Practitioner5

Clinical Social Worker1

Clinicians, nearest first (11)

John Tremper, M.D.

Family Practice

NPI 1487663423

1035 1ST AVE WEST FLATHEAD COMMUNITY HEALTH CENTER
Kalispell, MT 59901

(406) 751-8155

✔ PECOS✔ Accepts Medicare0.1 mi

Justin Buls, MD

Family Practice

NPI 1467678623

1035 1ST AVE W
Kalispell, MT 59901

(406) 751-8113

✔ PECOS0.1 mi

Samantha Greenberg, MD

Family Practice

NPI 1174961692

1035 1ST AVE W
Kalispell, MT 59901

(406) 751-8113

✔ PECOS✔ Accepts Medicare0.1 mi

Yvonne Olson, LCSW

Clinical Social Worker

NPI 1770051054

428 1ST AVE W
Kalispell, MT 59901

(406) 813-2082

✔ PECOS✔ Accepts Medicare0.4 mi

Michelle Nail Noftsinger, F.N.P.

Nurse Practitioner

NPI 1962685610

75 CLAREMONT ST STE A
Kalispell, MT 59901

(406) 752-8282

✔ PECOS1.8 mi

Shawn Shanahan, WHCNP

Nurse Practitioner

NPI 1841227303

75 CLAREMONT ST
Kalispell, MT 59901

(406) 752-8282

✔ PECOS✔ Accepts Medicare1.8 mi

Anna Danz, WHNP

Nurse Practitioner

NPI 1386073716

13526 CRESCENT MOON DR
Bigfork, MT 59911

(218) 779-7623

✔ PECOS✔ Accepts Medicare20 mi

Isaac Billings, D.O.

Family Practice

NPI 1437680758

107 RIDGEWATER DR STE A
Polson, MT 59860

(406) 883-3737

✔ PECOS✔ Accepts Medicare36 mi

Christopher Holdhusen, M.D.

Family Practice

NPI 1033177134

1930 9TH AVE
Helena, MT 59601

(406) 457-0000

✔ PECOS✔ Accepts Medicare155 mi

Kristine Brenc, NP-C

Nurse Practitioner

NPI 1518279959

915 NE VALLEY RD
Pullman, WA 99163

(509) 332-3548

✔ PECOS167 mi

Kathleen Rosenthal, ARNP, DNP

Nurse Practitioner

NPI 1558919761

21616 76TH AVE W STE 205
Edmonds, WA 98026

(425) 640-4810

✔ PECOS373 mi

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

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

783 services777 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

40 services40 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

40 services40 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

11 services11 patients

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 County Of Flathead's NPI number?

The NPI number for County Of Flathead is 1699892091. It was assigned to this organization in the NPPES registry on March 23, 2007. The provider is doing business as Flathead City-County Health Department.

Where is County Of Flathead located?

County Of Flathead is located at 1035 1st Ave W, Kalispell, MT 59901. The listed phone number is (406) 751-8100.

What is County Of Flathead's specialty?

The primary specialty registered for this NPI is Public Health or Welfare with taxonomy code 251K00000X.

Is County Of Flathead enrolled in Medicare?

Yes. County Of Flathead is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through County Of Flathead?

According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 3 Medicare specialties reassign their Medicare billing to County Of Flathead. A 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 the clinician's services. The largest specialties are Family Practice (5), Nurse Practitioner (5) and Clinical Social Worker (1). Of these, 6 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does County Of Flathead accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and PacificSource Health Plans list County Of Flathead 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 County Of Flathead was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.