Perka Guenev, M.D.
NPI 1205934254 · Family Medicine Physician · Janesville, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Perka Guenev, M.D. is a Family Medicine Physician provider in Janesville, WI (NPI 1205934254).
Provider details
- NPI number
- 1205934254
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036-121159 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
344 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 | 160 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 53 | $121 |
| Administration of Influenza Virus VaccineG0008 | 41 | $30 |
| Admn Sarscov2 Vacc 1 Dose90480 | 32 | $41 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 29 | $68 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 66 | 65 |
| Prednisone | 60 | 59 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 42 | 42 |
| Ciprofloxacin Hcl | 36 | 36 |
| Doxycycline Hyclate | 27 | 27 |
| Ofloxacin | 19 | 18 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 13 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2021-04-29
- Certified
- 2021-04-29
Frequently asked questions
- What is Perka Guenev's NPI number?
- Perka Guenev's National Provider Identifier (NPI) is 1205934254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Perka Guenev's specialty?
- Perka Guenev is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Perka Guenev located?
- Perka Guenev's practice location on file with NPPES is 3200 E Racine St, Janesville, WI 53546-2343.
- What is Perka Guenev's phone number?
- The practice phone number listed in the NPPES registry for Perka Guenev is (608) 371-8000.
- Does Perka Guenev accept Medicare?
- Perka Guenev is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Perka Guenev's NPI active?
- Yes — Perka Guenev's NPI (1205934254) is active in the NPPES registry as of the last update on 2021-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.