Eva Janiszewski, MD
NPI 1396812335 · General Practice Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eva Janiszewski, MD is a General Practice Physician provider in Mission Viejo, CA (NPI 1396812335).
Provider details
- NPI number
- 1396812335
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A62360 (CA)
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
383 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 259 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $99 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 39 | $140 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 25 | $195 |
| Administration of Influenza Virus VaccineG0008 | 14 | $35 |
Typical Medicare-allowed amounts for these services range $35–$195 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 245 | 84 |
| Levothyroxine Sodium | 162 | 44 |
| Metformin Hcl | 152 | 48 |
| Rosuvastatin Calcium | 146 | 50 |
| Lisinopril | 138 | 45 |
| Amlodipine Besylate | 107 | 36 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2025-05-24
- Certified
- 2025-05-24
Frequently asked questions
- What is Eva Janiszewski's NPI number?
- Eva Janiszewski's National Provider Identifier (NPI) is 1396812335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eva Janiszewski's specialty?
- Eva Janiszewski is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Eva Janiszewski located?
- Eva Janiszewski's practice location on file with NPPES is 26302 La Paz Rd Ste 214, Mission Viejo, CA 92691-5328.
- What is Eva Janiszewski's phone number?
- The practice phone number listed in the NPPES registry for Eva Janiszewski is (949) 458-2992.
- Does Eva Janiszewski accept Medicare?
- Eva Janiszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eva Janiszewski's NPI active?
- Yes — Eva Janiszewski's NPI (1396812335) is active in the NPPES registry as of the last update on 2025-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.