Frederick Kozlowski, MD
NPI 1508829995 · Internal Medicine Physician · Winchester, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Kozlowski, MD is a Internal Medicine Physician provider in Winchester, VA (NPI 1508829995).
Provider details
- NPI number
- 1508829995
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101053628 (VA)
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
20 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
9,808 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 | 1,341 | $121 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,295 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 1,220 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 914 | $13 |
| 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 | 527 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 167 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 493 | 127 |
| Atorvastatin Calcium | 432 | 111 |
| Lisinopril | 367 | 93 |
| Levothyroxine Sodium | 308 | 70 |
| Pravastatin Sodium | 266 | 65 |
| Rosuvastatin Calcium | 242 | 59 |
| Simvastatin | 211 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-08
- Last updated
- 2021-03-03
- Certified
- 2021-03-03
Frequently asked questions
- What is Frederick Kozlowski's NPI number?
- Frederick Kozlowski's National Provider Identifier (NPI) is 1508829995, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Kozlowski's specialty?
- Frederick Kozlowski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Kozlowski located?
- Frederick Kozlowski's practice location on file with NPPES is 190 Campus Blvd, Winchester, VA 22601-2872.
- What is Frederick Kozlowski's phone number?
- The practice phone number listed in the NPPES registry for Frederick Kozlowski is (540) 662-6135.
- Does Frederick Kozlowski accept Medicare?
- Frederick Kozlowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Kozlowski's NPI active?
- Yes — Frederick Kozlowski's NPI (1508829995) is active in the NPPES registry as of the last update on 2021-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.