Karen Ridenour, F.N.P., BC
NPI 1720347933 · Family Nurse Practitioner · Springfield, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Ridenour, F.N.P., BC is a Family Nurse Practitioner provider in Springfield, IL (NPI 1720347933).
Provider details
- NPI number
- 1720347933
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- F.N.P., BC
- Sex
- Female
- Sole proprietor
- No
- License
- 209009534 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
198 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 | 139 | $55 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 59 | $70 |
Typical Medicare-allowed amounts for these services range $55–$70 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 82 | 79 |
| Azithromycin | 45 | 45 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 37 | 37 |
| Mupirocin | 33 | 29 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 28 | 25 |
| Amoxicillin | 28 | 27 |
| Cephalexin | 24 | 24 |
Practice location
Mailing address
Additional practice locations (4)
- 159 E Mcarthur DrBethalto, IL 62010-1918Phone: (618) 258-7504Fax: (618) 258-7542
- 1103 Belt Line RdCollinsville, IL 62234-4368Phone: (618) 344-2273Fax: (618) 344-3034
- 17 Ginger Creek MdwsGlen Carbon, IL 62034-3508Phone: (618) 656-9777Fax: (618) 656-1249
- 108 W US Highway 40Troy, IL 62294-1836Phone: (618) 667-1800Fax: (618) 667-1802
Registry dates
- Enumerated
- 2012-05-08
- Last updated
- 2022-01-05
- Certified
- 2022-01-04
Frequently asked questions
- What is Karen Ridenour's NPI number?
- Karen Ridenour's National Provider Identifier (NPI) is 1720347933, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Ridenour's specialty?
- Karen Ridenour is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Ridenour located?
- Karen Ridenour's practice location on file with NPPES is 701 N First St Memorial Health System, Springfield, IL 62781-0001.
- What is Karen Ridenour's phone number?
- The practice phone number listed in the NPPES registry for Karen Ridenour is (618) 498-7108.
- Does Karen Ridenour accept Medicare?
- Karen Ridenour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Ridenour's NPI active?
- Yes — Karen Ridenour's NPI (1720347933) is active in the NPPES registry as of the last update on 2022-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.