1. Home
  2. Directory
  3. Iowa
  4. Waterloo
  5. Dietitian Registered
  6. NPI Profile

MARY A STEFFENSMEIER
NPI 1053029967
Dietitian, Registered - Nutrition, Sports Dietetics in Waterloo, IA

Active since November 09, 2022
3421 W 9TH ST, WATERLOO, IA 50702(319) 272-5859(319) 272-5470 Get Directions Write a Review

NPPES record last updated: November 9, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mary A Steffensmeier NPPES

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

MARY A STEFFENSMEIER (NPI 1053029967) is an individual nutrition, sports dietetics provider in Waterloo, Iowa, licensed in Iowa (00803) and active in the NPI registry since November 2022.

NPPES Registry Identity

NPI1053029967
Entity TypeIndividualFemale
Primary Taxonomy133VN1501X
Provider Legal NameMARY A STEFFENSMEIER
Location Address3421 W 9TH STWaterloo, IA 50702-5401
Mailing Address3421 W 9th StWaterloo, IA 50702-5401 · (319) 272-5859 · Fax (319) 272-5470
Phone(319) 272-5859
Fax(319) 272-5470
Sole ProprietorNo
Enumeration DateNovember 9, 2022
NPPES CertifiedNovember 9, 2022
✔ NPI 1053029967 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, Registered · Nutrition, Sports DieteticsDietary & Nutritional Service Providers
Taxonomy Code133VN1501X
License✔ Licensed in IA · 00803
Definition
An individual who is a Board Certified Specialist in Sports Dietetics and applies evidence-based nutrition knowledge in exercise and sports. RDNs specializing in sports dietetics assess, educate, and counsel athletes and active individuals. They design, implement, and manage safe and effective nutrition strategies that enhance lifelong health, fitness, and optimal performance.
3421 W 9TH ST, Waterloo, IA 50702
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary A Steffensmeier is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Covenant Medical Center Inc
Same address
Emergency Medicine
3421 W 9TH ST
Waterloo, IA 50702
  • Reassigned Medicare billing, Iowa enrollment
  • 271 clinicians in this Medicare group
NPI 1528009545 (319) 272-7600

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

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.

PAUL FRANKE M.D.
Internal Medicine
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (319) 272-5655
DR. MICHELLE NICOLE KOMPARE MD
Pediatrics (Neonatal-Perinatal Medicine)
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (319) 272-8000
MARCIA A RELLIHAN D.O.
Nurse Practitioner (Obstetrics & Gynecology)
3421 W 9TH ST, SUITE G4500
WATERLOO, IA 50702
Black Hawk County (319) 233-8865
KRISTA RAE MILLER CNM
Advanced Practice Midwife
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (319) 272-8000
KEVIN J DIRKSEN ARNP
Nurse Practitioner (Acute Care)
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (757) 561-4487
DR. RACHELLE ALEXANDRA MAKINDE MD
Anesthesiology
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (319) 272-5000
LEVI EDWARD ANDREWS DPM
Podiatrist
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (319) 272-2112
DR. NATHAN S HAHN MD
Anesthesiology
3421 W 9TH ST
WATERLOO, IA 50702
Black Hawk County (319) 272-5000

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 Mary Steffensmeier's NPI number?

The NPI number for Mary Steffensmeier is 1053029967. It was assigned to this individual provider in the NPPES registry on November 9, 2022.

Where is Mary Steffensmeier located?

Mary Steffensmeier practices at 3421 W 9th St, Waterloo, IA 50702. The listed phone number is (319) 272-5859.

What is Mary Steffensmeier's specialty?

The primary specialty registered for this NPI is Dietitian, Registered, specializing in Nutrition, Sports Dietetics, with taxonomy code 133VN1501X.

Is Mary Steffensmeier enrolled in Medicare?

Yes. Mary Steffensmeier is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Steffensmeier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Steffensmeier reassigns Medicare benefits to Covenant Medical Center Inc (Waterloo, IA). 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 Mary Steffensmeier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Steffensmeier accept?

Health plans from Oscar Insurance Company list Mary Steffensmeier 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 Mary Steffensmeier was last updated on November 9, 2022. 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.