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DR. MARGARET A WAGNER M.D.
NPI 1841228129
Internal Medicine in Idaho Falls, ID

Active since June 28, 2006PECOS Enrolled
2001 S WOODRUFF AVE, SUITE #15, IDAHO FALLS, ID 83404(208) 522-7310(208) 524-0559 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Margaret A Wagner M.d. NPPES

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

DR. MARGARET A WAGNER M.D. (NPI 1841228129) is an individual internal medicine provider in Idaho Falls, Idaho, licensed in Idaho (M4284) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841228129
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARGARET A WAGNERCredential: M.D.
Location Address2001 S WOODRUFF AVE, SUITE #15Idaho Falls, ID 83404-6374
Mailing Address2001 S Woodruff Ave, Suite #15Idaho Falls, ID 83404-6374 · (208) 522-7310 · Fax (208) 524-0559
Phone(208) 522-7310
Fax(208) 524-0559
Sole ProprietorNo
Enumeration DateJune 28, 2006
Last NPPES UpdateMarch 7, 2023
✔ NPI 1841228129 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in ID · M4284
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2001 S WOODRUFF AVE, Idaho Falls, ID 83404
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Other Identifiers 3

OtherMD2942ID · Idaho State Narc. #
Other000010003953ID · Regence Blue Shield
Other4284-6ID · Blue Cross

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Margaret A Wagner 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 Reassignment

Medicare enrollment records show Margaret Wagner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

St Mark's Professional Services, LLC
194 mi
Internal Medicine
1200 E 3900 S
Salt Lake City, UT 84124
  • Reassigned Medicare billing, Idaho enrollment
  • Medicare enrollment name: St Marks Professional Services LLC
  • 21 clinicians in this Medicare group
NPI 1912925629 (801) 268-7860

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 83404 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
$121.27 typical visit price
range $52.44 – $160.17
Typical copayment $30.31 (range $13.11 – $40.04)
Most-billed visit code 99204
Established Patient
$93.26 typical visit price
range $16.68 – $130.93
Typical copayment $23.31 (range $4.17 – $32.73)
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 20

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

MARK L MILLER R.C.S.,R.V.S.
Specialist/Technologist Cardiovascular
2001 S WOODRUFF AVE, SUITE 12B
IDAHO FALLS, ID 83404
Bonneville County (208) 529-2498
IHC HEALTH SERVICES INC
Internal Medicine (Cardiovascular Disease)
2001 S WOODRUFF AVE, #12
IDAHO FALLS, ID 83404
Bonneville County (801) 387-2655
MR. WILLIAM EMMETT ARMOUR III M.D.
Internal Medicine (Pulmonary Disease)
2001 S WOODRUFF AVE, SUITE 12A
IDAHO FALLS, ID 83404
Bonneville County (208) 529-2440
CLUB, INC.
Voluntary or Charitable
2001 S WOODRUFF AVE, SUITE 6
IDAHO FALLS, ID 83404
Bonneville County (208) 529-4673
MRS. JANAE LYNN DYE CRT
Respiratory Therapist, Certified
2001 S WOODRUFF AVE
IDAHO FALLS, ID 83404
Bonneville County (208) 529-2498
TETON NUCLEAR MEDICINE SERVICE LLC
Nuclear Medicine (Nuclear Imaging & Therapy)
2001 S WOODRUFF AVE, STE 20
IDAHO FALLS, ID 83404
Bonneville County (208) 525-3201
CORNELIUS PAUL BROOKE MD
Dermatology
2001 S WOODRUFF AVE, STE 12A
IDAHO FALLS, ID 83404
Bonneville County (208) 522-8945
HEALTH & WELLNESS CENTER OF IDAHO PLLC
Family Medicine
2001 S WOODRUFF AVE, SUITE 5
IDAHO FALLS, ID 83404
Bonneville County (208) 528-8777

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 Margaret Wagner's NPI number?

The NPI number for Margaret Wagner is 1841228129. It was assigned to this individual provider in the NPPES registry on June 28, 2006.

Where is Margaret Wagner located?

Margaret Wagner practices at 2001 S Woodruff Ave Suite #15, Idaho Falls, ID 83404. The listed phone number is (208) 522-7310.

What is Margaret Wagner's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Margaret Wagner enrolled in Medicare?

Yes. Margaret Wagner is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Margaret Wagner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Wagner reassigns Medicare benefits to St Mark's Professional Services, LLC (Salt Lake City, UT). The 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 Margaret Wagner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Margaret Wagner was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.