Joanna Williamson, AGNP
NPI 1457927998 · Adult Health Nurse Practitioner · Greensboro, NC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Williamson, AGNP is a Adult Health Nurse Practitioner provider in Greensboro, NC (NPI 1457927998).
Provider details
- NPI number
- 1457927998
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5014497 (NC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
207 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $102 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 32 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $72 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 25 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 18 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 64 | 31 |
| Rosuvastatin Calcium | 45 | 31 |
| Amlodipine Besylate | 43 | 20 |
| Atorvastatin Calcium | 31 | 21 |
| Gabapentin | 31 | 16 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 29 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$453 across 25 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-06-03
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is Joanna Williamson's NPI number?
- Joanna Williamson's National Provider Identifier (NPI) is 1457927998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Williamson's specialty?
- Joanna Williamson is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joanna Williamson located?
- Joanna Williamson's practice location on file with NPPES is 3803 Robert Porcher Way, Greensboro, NC 27410-2191.
- What is Joanna Williamson's phone number?
- The practice phone number listed in the NPPES registry for Joanna Williamson is (336) 286-3442.
- Does Joanna Williamson accept Medicare?
- Joanna Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Williamson's NPI active?
- Yes — Joanna Williamson's NPI (1457927998) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.