Carolyn Kosack, M.D.
NPI 1659349942 · Cardiovascular Disease Physician · Bloomfield, CT
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Kosack, M.D. is a Cardiovascular Disease Physician provider in Bloomfield, CT (NPI 1659349942).
Provider details
- NPI number
- 1659349942
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 031444 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
1,200 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 465 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 304 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 99 | $95 |
| Rubidium Rb-82, Diagnostic, Per Study Dose, Up to 60 MillicuriesA9555 | 66 | $524 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician93015 | 61 | $72 |
| Technetium Tc-99m Sestamibi, Diagnostic, Per Study Dose |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 530 | 193 |
| Metoprolol Succinate | 477 | 163 |
| Amlodipine Besylate | 398 | 152 |
| Ezetimibe | 192 | 79 |
| Rosuvastatin Calcium | 188 | 76 |
| Valsartan | 176 | 68 |
| Losartan Potassium | 169 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$273 across 9 records (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
- 2006-03-10
- Last updated
- 2016-09-07
Frequently asked questions
- What is Carolyn Kosack's NPI number?
- Carolyn Kosack's National Provider Identifier (NPI) is 1659349942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Kosack's specialty?
- Carolyn Kosack is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Carolyn Kosack located?
- Carolyn Kosack's practice location on file with NPPES is 711 Cottage Grove Rd, Bloomfield, CT 06002-3060.
- What is Carolyn Kosack's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Kosack is (860) 242-8756.
- Does Carolyn Kosack accept Medicare?
- Carolyn Kosack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Kosack's NPI active?
- Yes — Carolyn Kosack's NPI (1659349942) is active in the NPPES registry as of the last update on 2016-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.