CMS-1500 Box 24J / 33a • NPI
1124447305
Type 1 Individual Rendering/Ordering
HIPAA NUCC Taxonomy • CMS Code
363LF0000X (CMS 50)
Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Nurse Practitioner, Family
Box 32 Service Location & ZIP+4
709 OKLAHOMA BLVD, ALVA, OK, 73717-2749
✓ 9-Digit EDI 837 ZIP+4 (73717-2749)
✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR:
NPI
1124447305 (GWYNETH LEIGH HOLDERBY, DNP) 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
Medicare Part B
✓ Eligible
DMEPOS Ordering
✓ Eligible
Home Health (HHA)
✓ Eligible
Power Mobility
✓ Eligible
Hospice Referring
No
Empirical CMS Medicare Claims, CPT Utilization & Part D Prescribing (NPI #1124447305)
Medicare Beneficiaries
35
Total Billed Services
156
Distinct CPT/HCPCS Codes
15
Medicare Allowed Total
$32,609.66
Actual Top Billed CPT / HCPCS Procedures (CMS Part B)
| CPT / HCPCS | Clinical Procedure Description | Services |
|---|---|---|
99213 | Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 25 |
Actual Top Prescribed Medications (CMS Part D)
| Brand / Generic Medication | Total Claims | Patients |
|---|---|---|
| Acetaminophen-Codeine Acetaminophen With Codeine | 14 | <11 |
| Amlodipine Besylate Amlodipine Besylate | 16 | <11 |
| Atorvastatin Calcium Atorvastatin Calcium | 36 | 13 |
| Carisoprodol Carisoprodol | 11 | <11 |
| Furosemide Furosemide | 12 | <11 |
| Gabapentin Gabapentin | 11 | <11 |
| Glipizide Glipizide | 15 | <11 |
| Hydrochlorothiazide Hydrochlorothiazide | 24 | <11 |
Official CMS NPPES Credential & Practice Profile
| 10-Digit NPI Number | 1124447305 (NPI-1 Individual Practitioner) |
|---|---|
| Provider / Legal Name | GWYNETH LEIGH HOLDERBY, DNP |
| Plain-English Specialty | Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Nurse Practitioner, Family NUCC Code: 363LF0000X (Nurse Practitioner, Family) |
| Certifying / Licensing Body | State Medical / Healthcare Licensing Board & National Specialty Board |
| Practice Location Address | 709 OKLAHOMA BLVD, ALVA, OK, 73717-2749 |
| Practice Telephone / Fax | Tel: (580) 327-8434 |
| Administrative Mailing Address | 709 OKLAHOMA BLVD, ALVA, OK, 73717-2749 |
| Enumeration & Last Sync | Enumerated: 2014-04-15 | CMS Record Updated: 2026-07-21 |
Clinic Location, Accessibility & Directions
📍 Practice Location & Patient Access
🗺️ Open in Google Maps 🏥 More Providers in ALVA
🔒 Are you GWYNETH LEIGH HOLDERBY, DNP? Get your Verified NPI Clinic Badge or request personal phone/address redaction →
Plain-English Taxonomy & CMS Crosswalk (363LF0000X)
What Does Taxonomy Code 363LF0000X Mean?
In the HIPAA National Uniform Claim Committee (NUCC) classification, code 363LF0000X translates to:
"Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Nurse Practitioner, Family"
Specialty Clinical Procedures & Therapeutic Classes
Standard Scope of Care (GWYNETH LEIGH HOLDERBY, DNP)
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
- 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 |
|---|---|
363LF0000X — Nurse Practitioner, FamilyPlain English: Licensed & Credentialed Physician Assistants & Advanced Practice Nursing Providers — Nurse Practitioner, Family | State: OK | License: 96130 | Primary: Yes (Primary) |
Medical Billing, RCM & Hospital Credentialing Teams:
Batch-verify up to 25 NPIs free against CMS NPPES + Medicare PECOS + HHS OIG Exclusions with 1-click CSV export.