GILLIAN GRANT ARATHUZIK, RD, LDN, CDE — NPI 1922023217 (Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered, Nutrition, Metabolic in BOSTON, MA)

CMS-1500 Box 24J / 33a • NPI

1922023217

Type 1 Individual Rendering/Ordering

HIPAA NUCC Taxonomy • CMS Code

133VN1006X (CMS 71)

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

Box 32 Service Location & ZIP+4

1 JOSLIN PL, BOSTON, MA, 02215-5306

✓ 9-Digit EDI 837 ZIP+4 (02215-5306)

Practice Phone & Referral Fax

(617) 309-4531

Direct NPPES Verification Line

✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR: NPI 1922023217 (GILLIAN GRANT ARATHUZIK, RD, LDN, CDE) 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	`1922023217` (NPI-1 Individual Practitioner)
Provider / Legal Name	GILLIAN GRANT ARATHUZIK, RD, LDN, CDE
Plain-English Specialty	Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered, Nutrition, Metabolic NUCC Code: `133VN1006X` (Dietitian, Registered, Nutrition, Metabolic)
Certifying / Licensing Body	State Medical / Healthcare Licensing Board & National Specialty Board
Practice Location Address	1 JOSLIN PL, BOSTON, MA, 02215-5306
Practice Telephone / Fax	Tel: (617) 309-4531
Administrative Mailing Address	6 WILLIAMS RD, TOPSFIELD, MA, 01983-1627
Enumeration & Last Sync	Enumerated: 2006-07-13 \| CMS Record Updated: 2013-04-08

Clinic Location, Accessibility & Directions

📍 Practice Location & Patient Access

1 JOSLIN PL, BOSTON, MA, 02215-5306

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Plain-English Taxonomy & CMS Crosswalk (133VN1006X)

What Does Taxonomy Code 133VN1006X Mean?

In the HIPAA National Uniform Claim Committee (NUCC) classification, code 133VN1006X translates to:
"Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered, Nutrition, Metabolic"

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, Nutrition, Metabolic for specialized diagnostic evaluation, treatment planning, and continuity of care.

Specialty Clinical Procedures & Therapeutic Classes

Standard Scope of Care (GILLIAN GRANT ARATHUZIK, RD, LDN, CDE)

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
`133VN1006X` — Dietitian, Registered, Nutrition, Metabolic Plain English: Licensed & Credentialed Dietary & Nutritional Service Providers — Dietician, Registered, Nutrition, Metabolic	State: MA \| License: `852` \| Primary: Yes (Primary)

Medical Billing, RCM & Hospital Credentialing Teams:

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GILLIAN GRANT ARATHUZIK, RD, LDN, CDE (NPI #1922023217)