Karen Stallard, NP
NPI 1154339869 · Family Nurse Practitioner · Big Stone Gap, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1154339869
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- NP0024107007 (VA)
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,343 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 | 281 | $104 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 135 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 110 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 106 | $7 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 104 | $9 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 84 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 153 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 712 | 164 |
| Levothyroxine Sodium | 439 | 94 |
| Pantoprazole Sodium | 373 | 76 |
| Amlodipine Besylate | 349 | 78 |
| Omeprazole | 326 | 73 |
| Losartan Potassium | 277 | 65 |
| Montelukast Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$604 across 36 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
Additional practice locations (3)
- 743 Island RdBristol, VA 24201-7403Phone: (276) 469-4200
- 515 Front St WCoeburn, VA 24230-3607Phone: (276) 395-2389
- 671 Highway 58 ENorton, VA 24273-3007Phone: (276) 679-5874
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2024-08-09
- Certified
- 2024-08-09
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.