Karen Ashley Kruzer, MD
Rheumatology Physician · Rochester, NY
Karen Ashley Kruzer, MD is a rheumatology physician with a practice address in Rochester, New York, and NPI 1669036109, issued on Apr 30, 2019. Check the license (New York 314445, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Karen Ashley Kruzer
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 314445 NY
Self-reported in NPPES; status is on the state search - Practice location
- 601 Elmwood Ave, Rochester, NY 14642
- Phone
- (585) 275-2874
- Enumerated
- Apr 30, 2019
- Record last updated
- May 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20240926000777); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2019
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 599 in New York → Look up another NPI →
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Verify Karen Ashley Kruzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 314445Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average rheumatology physician in 2024
211 Medicare Part D claims for 59 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Methotrexate48 claims
- Prednisone26 claims
- Hydroxychloroquine Sulfate25 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.
Bills Medicare through 2 group practices
- Allergy - Immunology - Rheumatology Clinical GroupRochester, NY
- University OF RochesterRochester, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ashley Kruzer among 599 rheumatology physician records in New York
Karen Ashley Kruzer, MD is one of 599 rheumatology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 4% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2019 · median 2003 among the 425 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in New York
There are 599 rheumatology physician records in New York.
All 599 in New York → Every provider in Rochester → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Jennifer Barnas, M.D., PH.D.Rochester, NY 146421851657027
- Anthony Ocon, M.D.Rochester, NY 146421932547627
- Jessica Patel, M.D.Rochester, NY 146421073959797
- Megha Garg, M.DRochester, NY 146251982982617
- Ilana Abeles, M.D., PHDRochester, NY 146231770963464
- Jennifer Anolik, MDRochester, NY 146231245257617
- Roberta Goncalves Marangoni, MD, PHDRochester, NY 146231659951440
- Margaret-Mary Holyst, MDRochester, NY 146231043575210
Common questions
What is Karen Ashley Kruzer, MD's NPI number?
Karen Ashley Kruzer, MD's National Provider Identifier (NPI) is 1669036109, issued on Apr 30, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ashley Kruzer, MD located?
The NPPES record lists a practice address at 601 Elmwood Ave, Rochester, NY, 14642. Phone: (585) 275-2874. Providers update this record themselves, so call before visiting.
How can I verify Karen Ashley Kruzer, MD's license?
NPPES lists New York license number 314445, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Ashley Kruzer, MD prescribe under Medicare Part D?
In 2024, Karen Ashley Kruzer, MD had 211 Medicare Part D claims for 59 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.