Doctor Profile

Neurology · Neurology

Walter A. Lajara-Nanson

MD · Neurology
1401 25TH ST S
Great Falls, MT 59405
✓ Accepts Medicare 🎓 35+ Years Practicing
768
Medicare Patients / yr
15
Procedures Billed
35
Years Practicing
1
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Walter A. Lajara-Nanson's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Lajara-Nanson

See which plans Dr. Lajara-Nanson accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Montana, the fastest way to find a Medicare plan that covers Dr. Lajara-Nanson is to compare every Medicare Advantage and Part D plan available near 59405, MT — the Neurology's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 59405, MT →

Or call the office at (406) 455-5000 to confirm acceptance directly.

What Dr. Lajara-Nanson Does

Dr. Lajara-Nanson served 768 Medicare patients across 1,016 services in the latest CMS reporting year. That's 93% above the average Neurology in Montana (398 patients across 40 doctors).

ProcedureServicesMedicare Patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)303149
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)156148
Established patient office or other outpatient visit, 20-29 minutes (99213)10285
Established patient office or other outpatient visit, 40-54 minutes (99215)9668
Established patient office or other outpatient visit, 30-39 minutes (99214)7863

How to read this: "Services" are the total times Dr. Lajara-Nanson billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Lajara-Nanson is affiliated with 1 hospital in the CMS Physician Compare database. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Benefis Hospitals Inc

Great Falls, MT
★★☆☆☆ 2/5 CMS Rating

Practice Location & Telehealth Readiness

Dr. Lajara-Nanson practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Lajara-Nanson offers telehealth — broadband availability at your home matters for virtual visits.

Address: 1401 25TH ST S, Great Falls, MT 59405
Phone: (406) 455-5000

Area Safety Grade

D-

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

19 min

Average commute time in this zip · 90% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

27.4709

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Neurology Doctors near 59405, MT

If Dr. Lajara-Nanson isn't accepting new patients or isn't in your plan's network, these are the closest neurology doctors near 59405, MT:

DoctorSpecialtyMedicare Patients / yrDistance
Eliad T. CulceaNeurology958<1 mi
Deborah D. DoverNeurology343<1 mi
Cody SandersNeurology<1 mi
William E. HenningNeurology561<1 mi
Liliya YaushevaNeurology423.5 mi

View all neurology doctors near 59405, MT →

How to Use This Information

Choosing a Medicare plan that covers Dr. Lajara-Nanson takes three steps:

Compare Medicare Plans near 59405, MT → All Doctors near 59405, MT

Walter A. Lajara-Nanson: Common Questions

Does Dr. Lajara-Nanson accept Medicare?
Yes. Dr. Lajara-Nanson is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Lajara-Nanson depends on that plan's provider network. Compare Medicare plans near 59405, MT →
Where is Dr. Lajara-Nanson's office?
Dr. Lajara-Nanson practices at 1401 25TH ST S, Great Falls, MT 59405. Phone: (406) 455-5000.
What Medicare plans does Dr. Lajara-Nanson accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (406) 455-5000 to confirm your specific plan is accepted, or compare all Medicare plans near 59405, MT to see available options.
Does Dr. Lajara-Nanson offer telehealth visits?
CMS does not currently list Dr. Lajara-Nanson as offering telehealth. Call the office at (406) 455-5000 to confirm whether virtual visits are available.
How experienced is Dr. Lajara-Nanson?
Dr. Lajara-Nanson graduated in 1991 and has been practicing for approximately 35 years. In the latest CMS reporting year, Dr. Lajara-Nanson treated 768 Medicare patients across 15 distinct procedure types.
How do I know if Dr. Lajara-Nanson is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (406) 455-5000 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile →LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology →Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

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