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JEFFREY ALLEN TJADEN M.D. M.P.H.
NPI 1164583373
Internal Medicine - Infectious Disease in Bozeman, MT

Active since December 12, 2006PECOS EnrolledAccepts Medicare Assignment
937 HIGHLAND BLVD STE 5120, BOZEMAN, MT 59715(406) 414-4210 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 9, 2025, Apr 4, 2025, Oct 20, 2022 and 3 more (6 updates tracked since 2017).

About Jeffrey Allen Tjaden M.d. M.p.h. NPPES

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

JEFFREY ALLEN TJADEN M.D. M.P.H. (NPI 1164583373) is an individual infectious disease provider in Bozeman, Montana, licensed in Montana (8294) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with St Peters Health, and maintains a secondary practice location in Kalispell.

NPPES Registry Identity

NPI1164583373
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameJEFFREY ALLEN TJADENCredential: M.D. M.P.H.
Location Address937 HIGHLAND BLVD STE 5120Bozeman, MT 59715-6916
Mailing Address915 Highland BlvdBozeman, MT 59715-6902 · (406) 414-5000
Phone(406) 414-4210
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateDecember 12, 2006
Last NPPES UpdateApril 9, 20256 updates tracked since enumeration
NPPES CertifiedApril 9, 2025
✔ NPI 1164583373 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in MT · 8294
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
937 HIGHLAND BLVD STE 5120, Bozeman, MT 59715
Open in Google Maps ↗

Secondary Practice Location 1

Location 1430 Windward Way Ste 100Kalispell, MT 59901-2619 · Phone (406) 751-5364 · Fax (406) 751-5367

Other Identifiers 2

Medicaid1164583373MT
Other1164583373MT · Bcbs

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jeffrey Allen Tjaden M.d. M.p.h. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294915286
PECOS Enrollment IDI20110208000797
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.

Areas of Expertise CMS Part B claims 7

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
153 services63 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
142 services31 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
58 services37 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
32 services32 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
30 services20 patients
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
15 services15 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Peters Health

Acute Care Hospitals · Helena, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270003
Location2475 BroadwayHelena, MT 59601 · Lewis And Clark County
Emergency services Birthing friendly

St James Healthcare

Acute Care Hospitals · Butte, MT
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270017
Location400 S Clark StButte, MT 59701 · Silver Bow County
Emergency services Birthing friendly

Bozeman Health Deaconess Hospital

Acute Care Hospitals · Bozeman, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270057
Location915 Highland Blvd Suite 3310Bozeman, MT 59715 · Gallatin County
Emergency services Birthing friendly

Livingston Healthcare

Critical Access Hospitals · Livingston, MT
3/5 CMS rating
OwnershipPhysician
CMS Certification Number271317
Location320 Alpenglow LaneLivingston, MT 59047 · Park County
Emergency services

Madison Valley Medical Center

Critical Access Hospitals · Ennis, MT
OwnershipVoluntary non-profit - Private
CMS Certification Number271329
Location305 N MainEnnis, MT 59729 · Madison County
Emergency services

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 4

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

SUSAN MEYER PA-C
Physician Assistant
937 HIGHLAND BLVD STE 5120
BOZEMAN, MT 59715
Gallatin County (406) 414-4210
BENEDICT F PAINTER MD
Internal Medicine (Infectious Disease)
937 HIGHLAND BLVD STE 5120
BOZEMAN, MT 59715
Gallatin County (406) 414-4210
PETER KURT BULGER MD
Internal Medicine (Infectious Disease)
937 HIGHLAND BLVD STE 5120
BOZEMAN, MT 59715
Gallatin County (406) 414-4210
JESSIKA HINZ DO
Internal Medicine (Infectious Disease)
937 HIGHLAND BLVD STE 5120
BOZEMAN, MT 59715
Gallatin County (406) 414-4210

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 Jeffrey Tjaden's NPI number?

The NPI number for Jeffrey Tjaden is 1164583373. It was assigned to this individual provider in the NPPES registry on December 12, 2006.

Where is Jeffrey Tjaden located?

Jeffrey Tjaden practices at 937 Highland Blvd Ste 5120, Bozeman, MT 59715. The listed phone number is (406) 414-4210.

What is Jeffrey Tjaden's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Jeffrey Tjaden enrolled in Medicare?

Yes. Jeffrey Tjaden is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Jeffrey Tjaden accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Jeffrey Tjaden 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.

Is Jeffrey Tjaden affiliated with any hospitals?

According to CMS data, Jeffrey Tjaden is affiliated with St Peters Health, St James Healthcare, Bozeman Health Deaconess Hospital, Livingston Healthcare and Madison Valley Medical Center.

When was this NPI record last updated?

The NPPES record for Jeffrey Tjaden was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.