STEVEN ALLEN LARSEN (MD) – Diagnostic Radiology Physician, NPI 1508953555

STEVEN ALLEN LARSEN (MD) is a healthcare provider. based in Idaho falls, Idaho. specializing in INTERVENTIONAL RADIOLOGY, DIAGNOSTIC RADIOLOGY. They hold the professional credentials MD. They hold a License No. DR.0076559 (CO). The NPI Number for STEVEN ALLEN LARSEN (MD) is 1508953555

Main info

Male
25 Years Of Experience
Accepts Medicare Assignment
Name
STEVEN ALLEN LARSEN (MD)
NPI
1508953555
Phone
(208) 542-5000
Address
2265 E SUNNYSIDE RD BLDG B
Enumeration Date
9 October 2006
Last Update Date
5 June 2026

Doctor Profile

Medical School Name
UNIVERSITY OF UTAH SCHOOL OF MEDICINE
Secondary Phone
4357532842
Graduation Year
2001 (25 years ago)
PAC ID
7517965064
Group Practice PAC ID
5294069563
Professional Enrollment ID
I20080219000846
Address ID
ID832012745PO444XXWAYX301
Data current as of
10 June 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience84
Completeness85
Years active:19State licenses:4Digital endpointsOther names

47 INTERVENTIONAL RADIOLOGY in ID

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Provider Addresses for STEVEN ALLEN LARSEN (MD)

  • 2265 E SUNNYSIDE RD BLDG B

    IDAHO FALLS, ID 834047598

    Phone: (208) 542-5000

    Type: Mailing

  • Portneuf Medical Center, 777, Hospital Way, Pocatello, Bannock County, Idaho, 83201, United States

    BLDG B

    POCATELLO, ID 832015175

    Phone: (208) 239-1000

    Type: Location

  • 1460 G St

    Springfield, OR 974774112

    Phone: (816) 800-9020

    Type: Location

  • 1501 E 3rd St

    Delta, CO 814162815

    Phone: (970) 874-7681

    Type: Location

  • 1110 N Sarah DeWitt Dr

    Gonzales, TX 786293311

    Phone: (816) 800-9020

    Type: Location

  • 2265, East Sunnyside Road, Idaho Falls, Bonneville County, Idaho, 83404, United States

    BLDG B

    IDAHO FALLS, ID 834047598

    Phone: (208) 542-5000

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 8 Open Payments records for all available years, with a total value of $290.

Total Amount is formed as General ($290) + Research ($0) + Ownership ($0) = $290.

Last reported payment date: 2024-11-06 • Largest payer in this snapshot: MML US, Inc. ($176).

Total Amount

$290

General + Research + Ownership

Payments

8

Total payment records

General Amount

$290

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-06

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
MML US, Inc.$176
Lundbeck LLC$98
Dexcom, Inc.$17
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2024-09-24

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 8 Medicare enrollment records; no due dates published yet.

Enrollment records

8

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20061117000300IDiagnostic RadiologyORTBD
I20080219000846IDiagnostic RadiologyIDTBD
I20150717001188IDiagnostic RadiologyWYTBD
I20160127000469IDiagnostic RadiologyMTTBD
I20220510001680IDiagnostic RadiologyUTTBD
I20240802002629IDiagnostic RadiologyFLTBD
I20240904003139IDiagnostic RadiologyKSTBD
I20240924001442IDiagnostic RadiologyTXTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
Q9967Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml2,65025$0
71045X-ray of chest, 1 view710661$0
74177Ct scan of abdomen and pelvis with contrast376369$0
70450Ct scan head or brain without contrast334326$0
77063Screening 3d breast mammography253253$0
View full utilization report →

Insurance plans in this area (ZIP 83404)

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Provider's Procedures

STEVEN ALLEN LARSEN (MD) performs procedures in INTERVENTIONAL RADIOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
DIAGNOSTIC RADIOLOGYID73562X-ray of knee, 3 views4742
DIAGNOSTIC RADIOLOGYID74177CT scan of abdomen and pelvis with contrast2020
DIAGNOSTIC RADIOLOGYID76830Ultrasound pelvis through vagina1414
DIAGNOSTIC RADIOLOGYID78815Nuclear medicine study with CT imaging skull base to mid-thigh3534

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 5294069563View full group profile
NameSpecialtyState
DR. JAMES W TAYLOR (D.O.)
Diagnostic RadiologyID
ARTUR NARKIEWICZ-JODKO (MD)
Diagnostic Radiology, Interventional RadiologyID
DANIEL SPENCER MADSEN (MD)
Interventional RadiologyID
DR. MICHAEL SEAN ENSLOW (M.D.)
Diagnostic RadiologyID
MR. NICHOLAS S PIERSON (MD)
Diagnostic Radiology, Interventional RadiologyID
DR. RODERICK JACK WILLMORE (M.D.)
Diagnostic RadiologyID
BRETT SCOTT TALBOT (M.D.)
Diagnostic RadiologyID
JUSTIN A LAMB (D.O.)
Diagnostic RadiologyID
DR. DIRK E. BIGLER (D.O.)
Diagnostic RadiologyID
JOHN J STROBEL (MD)
Diagnostic RadiologyID

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Frequently asked questions

What is the standard ID for STEVEN ALLEN LARSEN (MD) in the U.S.?
In the U.S., STEVEN ALLEN LARSEN (MD) is identified by NPI 1508953555.
Quick check: is STEVEN ALLEN LARSEN (MD) active?
Public NPPES data shows STEVEN ALLEN LARSEN (MD) with an active NPI status right now.
What type of care does STEVEN ALLEN LARSEN (MD) provide?
STEVEN ALLEN LARSEN (MD)'s profile centers on Diagnostic Radiology Physician. Clinical services aligned with this taxonomy classification.
Can patients visit STEVEN ALLEN LARSEN (MD) in Idaho Falls, Idaho?
For routing, start with Idaho Falls, Idaho for STEVEN ALLEN LARSEN (MD), then verify phone and hours locally.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.