Agata Jaskiewicz-Poznanska, M.D.
NPI 1114148558 · Family Medicine Physician · Southbury, CT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Agata Jaskiewicz-Poznanska, M.D. is a Family Medicine Physician provider in Southbury, CT (NPI 1114148558).
Provider details
- NPI number
- 1114148558
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 049047 (CT)
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
2,313 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 | 804 | $138 |
| 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 | 413 | $18 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 254 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 219 | $142 |
| Administration of Influenza Virus VaccineG0008 | 84 | $32 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 140 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 557 | 156 |
| Rosuvastatin Calcium | 505 | 130 |
| Atorvastatin Calcium | 445 | 134 |
| Levothyroxine Sodium | 444 | 115 |
| Lisinopril | 342 | 101 |
| Losartan Potassium | 287 | 72 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2011-04-06
Frequently asked questions
- What is Agata Jaskiewicz-Poznanska's NPI number?
- Agata Jaskiewicz-Poznanska's National Provider Identifier (NPI) is 1114148558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Agata Jaskiewicz-Poznanska's specialty?
- Agata Jaskiewicz-Poznanska is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Agata Jaskiewicz-Poznanska located?
- Agata Jaskiewicz-Poznanska's practice location on file with NPPES is 22 Old Waterbury Rd, Southbury, CT 06488-3848.
- What is Agata Jaskiewicz-Poznanska's phone number?
- The practice phone number listed in the NPPES registry for Agata Jaskiewicz-Poznanska is (203) 262-4200.
- Does Agata Jaskiewicz-Poznanska accept Medicare?
- Agata Jaskiewicz-Poznanska is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Agata Jaskiewicz-Poznanska's NPI active?
- Yes — Agata Jaskiewicz-Poznanska's NPI (1114148558) is active in the NPPES registry as of the last update on 2011-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.