Frederick Harold Kozlowski, MD
Internal Medicine Physician · Winchester, VA
Frederick Harold Kozlowski, MD is an internal medicine physician with a practice address in Winchester, Virginia, and NPI 1508829995, issued on Apr 8, 2006. Check the license (Virginia 0101053628, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Frederick Harold Kozlowski
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101053628 VA
Self-reported in NPPES; status is on the state search - Practice location
- 190 Campus Blvd, Winchester, VA 22601
- Phone
- (540) 662-6135
- Enumerated
- Apr 8, 2006
- Record last updated
- Mar 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (540) 662-5845
- Medicaid IDs
- 0080509000 WV
005809436 VA - Medicare enrollment
- Enrolled (PECOS I20100628000117); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
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Also registered at 190 Campus Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Frederick Harold Kozlowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101053628Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,009 Medicare Part D claims for 657 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 171 claims were for opioids.
Most prescribed
- Amlodipine Besylate493 claims
- Atorvastatin Calcium432 claims
- Lisinopril367 claims
- Levothyroxine Sodium308 claims
- Pravastatin Sodium266 claims
- Rosuvastatin Calcium242 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
2 hospitals and group practices
- Winchester Medical CenterWinchester, VA · Acute Care Hospitals4 of 5 stars
- Winchester Internal Medicine, IncWinchester, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Frederick Harold Kozlowski among 3,599 internal medicine physician records in Virginia
Frederick Harold Kozlowski, MD is one of 3,599 internal medicine physician records with a practice address in Virginia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1994 · median 2003 among the 2,234 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
76 internal medicine physician records list a practice address in Winchester
They are 76 of the 2,762 NPPES records with a practice address in Winchester, and 3,599 internal medicine physician records in Virginia.
All 3,599 in Virginia → Every provider in Winchester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Yirgalem Abraham, MDWinchester, VA 226011689646101
- Harjit Bagri, MDWinchester, VA 226011700879509
- Cyril Barch, MDWinchester, VA 226011558366096
- Emad Botros, MDWinchester, VA 226011528063070
- Andrew Cho, MDWinchester, VA 226011588636054
- Shannon Dodd, D.O.Winchester, VA 226011801868393
- Thomas Gibbs, MDWinchester, VA 226011427058023
- Lisa Kent, M.D.Winchester, VA 226011477514636
Common questions
What is Frederick Harold Kozlowski, MD's NPI number?
Frederick Harold Kozlowski, MD's National Provider Identifier (NPI) is 1508829995, issued on Apr 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Harold Kozlowski, MD located?
The NPPES record lists a practice address at 190 Campus Blvd, Winchester, VA, 22601. Phone: (540) 662-6135. Providers update this record themselves, so call before visiting.
How can I verify Frederick Harold Kozlowski, MD's license?
NPPES lists Virginia license number 0101053628, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Frederick Harold Kozlowski, MD prescribe under Medicare Part D?
In 2024, Frederick Harold Kozlowski, MD had 11,009 Medicare Part D claims for 657 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.