Joanna Harkness, AGACNP-BC
NPI 1023561131 · Acute Care Nurse Practitioner · Gainesville, GA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Harkness, AGACNP-BC is a Acute Care Nurse Practitioner provider in Gainesville, GA (NPI 1023561131).
Provider details
- NPI number
- 1023561131
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGACNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- RN203608 (GA)
Specialties & taxonomies
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
9 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
530 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 | 179 | $100 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 147 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 64 | $63 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 51 | $105 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 43 | $131 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 297 | 81 |
| Omeprazole | 215 | 56 |
| Ondansetronbrand: Ondansetron Odt | 168 | 158 |
| Famotidine | 88 | 23 |
| Linaclotidebrand: Linzess | 76 | 16 |
| Colesevelam Hcl | 72 | 23 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 49 | 49 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$988 across 27 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
- 2016-07-26
- Last updated
- 2021-01-07
- Certified
- 2021-01-07
Frequently asked questions
- What is Joanna Harkness's NPI number?
- Joanna Harkness's National Provider Identifier (NPI) is 1023561131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Harkness's specialty?
- Joanna Harkness is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joanna Harkness located?
- Joanna Harkness's practice location on file with NPPES is 2324 Limestone Overlook, Gainesville, GA 30501-7443.
- What is Joanna Harkness's phone number?
- The practice phone number listed in the NPPES registry for Joanna Harkness is (770) 536-8109.
- Does Joanna Harkness accept Medicare?
- Joanna Harkness is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Harkness's NPI active?
- Yes — Joanna Harkness's NPI (1023561131) is active in the NPPES registry as of the last update on 2021-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.