Leonid Karkanitsa, MD
NPI 1669435087 · Internal Medicine Physician · Stratford, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonid Karkanitsa, MD is a Internal Medicine Physician provider in Stratford, CT (NPI 1669435087).
Provider details
- NPI number
- 1669435087
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 043534 (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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
733 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 | 223 | $105 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 184 | $128 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 112 | $177 |
| 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 | 84 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $91 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 146 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 409 | 69 |
| Atorvastatin Calcium | 336 | 65 |
| Levothyroxine Sodium | 312 | 59 |
| Trazodone Hcl | 301 | 51 |
| Rosuvastatin Calcium | 289 | 46 |
| Apixabanbrand: Eliquis | 263 | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$983 across 30 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
Additional practice locations (2)
- 1952 Whitney AveHamden, CT 06517-1209Phone: (203) 848-1083Fax: (203) 848-1777
- 6580 Main St Fl 1Stratford, CT 06614-1607Phone: (203) 377-5444
Registry dates
- Enumerated
- 2006-04-07
- Last updated
- 2018-07-24
Frequently asked questions
- What is Leonid Karkanitsa's NPI number?
- Leonid Karkanitsa's National Provider Identifier (NPI) is 1669435087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonid Karkanitsa's specialty?
- Leonid Karkanitsa is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leonid Karkanitsa located?
- Leonid Karkanitsa's practice location on file with NPPES is 6580 Main St Fl 1, Stratford, CT 06614.
- What is Leonid Karkanitsa's phone number?
- The practice phone number listed in the NPPES registry for Leonid Karkanitsa is (203) 377-5444.
- Does Leonid Karkanitsa accept Medicare?
- Leonid Karkanitsa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonid Karkanitsa's NPI active?
- Yes — Leonid Karkanitsa's NPI (1669435087) is active in the NPPES registry as of the last update on 2018-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.