Karen Doerfler, ARNP
NPI 1740231661 · Nurse Practitioner · Asheville, NC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Doerfler, ARNP is a Nurse Practitioner provider in Asheville, NC (NPI 1740231661).
Provider details
- NPI number
- 1740231661
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- 3134692 (FL)
Specialties & taxonomies
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
669 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 182 | $72 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 144 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 120 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 96 | $101 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 64 | $103 |
| Administration of Pneumococcal Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 71 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 114 | 38 |
| Hydrochlorothiazide | 101 | 36 |
| Levothyroxine Sodium | 99 | 37 |
| Amlodipine Besylate | 87 | 32 |
| Rosuvastatin Calcium | 85 | 34 |
| Lisinopril | 80 | 34 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-15
- Last updated
- 2018-04-12
Frequently asked questions
- What is Karen Doerfler's NPI number?
- Karen Doerfler's National Provider Identifier (NPI) is 1740231661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Doerfler's specialty?
- Karen Doerfler is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Doerfler located?
- Karen Doerfler's practice location on file with NPPES is 41 Oakland Rd Ste 100, Asheville, NC 28801-4821.
- What is Karen Doerfler's phone number?
- The practice phone number listed in the NPPES registry for Karen Doerfler is (828) 252-8885.
- Does Karen Doerfler accept Medicare?
- Karen Doerfler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Doerfler's NPI active?
- Yes — Karen Doerfler's NPI (1740231661) is active in the NPPES registry as of the last update on 2018-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.