ISABELLE KATHLEEN SCHROYER, RDN, LN — NPI 1134043003 (Licensed & Credentialed Dietary & Nutritional Service Providers

CMS-1500 Box 24J / 33a • NPI

1134043003

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

133V00000X (CMS 71)

Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered

Box 32 Service Location & ZIP+4

1202 3RD ST W, ROUNDUP, MT, 59072-1816

✓ 9-Digit EDI 837 ZIP+4 (59072-1816)

Practice Phone & Referral Fax

(406) 323-2301

Direct NPPES Verification Line

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1134043003 (ISABELLE KATHLEEN SCHROYER, RDN, LN) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).

CMS Medicare Order & Referring PECOS Eligibility

This practitioner does not currently appear in the CMS individual Order & Referring PECOS file (may practice in pediatrics, commercial-only networks, or hospital-employed settings).

Official CMS NPPES Credential & Practice Profile

10-Digit NPI Number	`1134043003` (NPI-1 Individual Practitioner)
Provider / Legal Name	ISABELLE KATHLEEN SCHROYER, RDN, LN
Plain-English Specialty	Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered NUCC Code: `133V00000X` (Dietitian, Registered)
Certifying / Licensing Body	State Medical / Healthcare Licensing Board & National Specialty Board
Practice Location Address	1202 3RD ST W, ROUNDUP, MT, 59072-1816
Practice Telephone / Fax	Tel: (406) 323-2301
Administrative Mailing Address	1202 3RD ST W, ROUNDUP, MT, 59072-1816
Enumeration & Last Sync	Enumerated: 2026-08-05 \| CMS Record Updated: 2026-08-05

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

1202 3RD ST W, ROUNDUP, MT, 59072-1816

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Plain-English Taxonomy & CMS Crosswalk (133V00000X)

What Does Taxonomy Code 133V00000X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 133V00000X translates to:
"Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered"

CMS-1500 Medicare Specialty Crosswalk: CMS Code 71 (Registered Dietitian or Nutrition Professional)
Certifying / Accrediting Authority: State Medical / Healthcare Licensing Board & National Specialty Board
Clinical Scope: Consult a verified Dietitian, Registered for specialized diagnostic evaluation, treatment planning, and continuity of care.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (ISABELLE KATHLEEN SCHROYER, RDN, LN)

Typical CPT / Diagnostic Procedures:

Comprehensive Outpatient & Inpatient Clinical Evaluation (CPT 99202–99215)
Diagnostic Workup, Laboratory Ordering & Evidence-Based Care Coordination
Preventive Screening, Patient Counseling & Multidisciplinary Referral

Common Therapeutic Classes:

Evidence-Based Specialty Pharmacotherapy & Preventive Regimens (CMS Part D Standard)

All Registered NUCC Taxonomies & State Licenses

Taxonomy Code & Plain-English Description	State License & Primary Status
`133V00000X` — Dietitian, Registered Plain English: Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered	State: MT \| License: `MED-NUTR-LIC-174943` \| Primary: Yes (Primary)

Medical Billing, RCM & Hospital Credentialing Teams:

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ISABELLE KATHLEEN SCHROYER, RDN, LN (NPI #1134043003)