Lissa Diefendorf, APN
NPI 1427356336 · Adult Health Clinical Nurse Specialist · Peoria, IL
Enrolled with Medicare as Practitioner - Certified Clinical Nurse Specialist (cns) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lissa Diefendorf, APN is a Adult Health Clinical Nurse Specialist provider in Peoria, IL (NPI 1427356336).
Provider details
- NPI number
- 1427356336
- Entity type
- Individual
- Primary specialty
- Adult Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 209008169 (IL)
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
15 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
1,088 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 790 | $88 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 180 | $125 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 61 | $107 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 57 | $61 |
Typical Medicare-allowed amounts for these services range $61–$125 (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 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 341 | 74 |
| Tramadol Hcl | 130 | 32 |
| Lorazepam | 93 | 24 |
| Oxycodone Hcl | 79 | 21 |
| Potassium Chloride | 70 | 26 |
| Levothyroxine Sodium | 64 | 17 |
| Furosemide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$116 across 1 record (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
- 2011-03-02
- Last updated
- 2011-03-02
Frequently asked questions
- What is Lissa Diefendorf's NPI number?
- Lissa Diefendorf's National Provider Identifier (NPI) is 1427356336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lissa Diefendorf's specialty?
- Lissa Diefendorf is listed in the NPPES registry with a primary specialty of Adult Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lissa Diefendorf located?
- Lissa Diefendorf's practice location on file with NPPES is 403 W Corrington Ave, Peoria, IL 61604-2803.
- What is Lissa Diefendorf's phone number?
- The practice phone number listed in the NPPES registry for Lissa Diefendorf is (309) 222-5736.
- Does Lissa Diefendorf accept Medicare?
- Lissa Diefendorf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lissa Diefendorf's NPI active?
- Yes — Lissa Diefendorf's NPI (1427356336) is active in the NPPES registry as of the last update on 2011-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.