Margaret Louise Kruithoff, MD
Internal Medicine Physician · Rochester, NY
Margaret Louise Kruithoff, MD is an internal medicine physician with a practice address in Rochester, New York, and NPI 1750919494, issued on Mar 30, 2020. Check the license (New York 325697, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Margaret Louise Kruithoff
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 325697 NY
Self-reported in NPPES; status is on the state search - Practice location
- 990 South Ave, Rochester, NY 14620
- Phone
- (585) 341-6775
- Enumerated
- Mar 30, 2020
- Record last updated
- Jun 4, 2024
- Fax
- (585) 341-8310
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
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Verify Margaret Louise Kruithoff 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 325697Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average internal medicine physician in 2024
498 Medicare Part D claims for 101 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium39 claims
- Omeprazole29 claims
- Gabapentin25 claims
- Amlodipine Besylate22 claims
- Metformin Hcl19 claims
- Carvedilol16 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.
Margaret Louise Kruithoff among 12,067 internal medicine physician records in New York
Margaret Louise Kruithoff, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2024 · 61% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
504 internal medicine physician records list a practice address in Rochester
They are 504 of the 20,520 NPPES records with a practice address in Rochester, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Rochester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Egan Allen, M.D.Rochester, NY 146201962471763
- Howard Beckman, M.D.Rochester, NY 146201972555019
- Suzanne Gillespie, MDRochester, NY 146201215994330
- Robert Greene, M.D.Rochester, NY 146201922035740
- Youngrin Kim, M.D.Rochester, NY 146201386697498
- Russell Maggio, M.D.Rochester, NY 146201518932441
- Carl Magnussen, MDRochester, NY 146201639125651
- Richard Mottern, MDRochester, NY 146201578523957
Common questions
What is Margaret Louise Kruithoff, MD's NPI number?
Margaret Louise Kruithoff, MD's National Provider Identifier (NPI) is 1750919494, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Louise Kruithoff, MD located?
The NPPES record lists a practice address at 990 South Ave, Rochester, NY, 14620. Phone: (585) 341-6775. Providers update this record themselves, so call before visiting.
How can I verify Margaret Louise Kruithoff, MD's license?
NPPES lists New York license number 325697, 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 Margaret Louise Kruithoff, MD prescribe under Medicare Part D?
In 2024, Margaret Louise Kruithoff, MD had 498 Medicare Part D claims for 101 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.