Michael A. Grajewski, MD
Family Medicine Physician · Watertown, WI
Michael A. Grajewski, MD is a family medicine physician with a practice address in Watertown, Wisconsin, and NPI 1023085685, issued on Mar 2, 2006. Check the license (Wisconsin 27213, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael A. Grajewski
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 27213 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1507 Doctors CT, Watertown, WI 53094
- Phone
- (920) 261-4111
- Enumerated
- Mar 2, 2006
- Record last updated
- Nov 8, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (920) 261-8387
- Medicaid ID
- 30650300 WI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 1507 Doctors CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Barnett, PA CPhysician Assistant1003882788
- Amber Hendriksen, NPFamily Nurse Practitioner1881244358
- Arjun Patel, MDFamily Medicine Physician1942888243
- David Smiley, APNPFamily Nurse Practitioner1720709751
Verify Michael A. Grajewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 27213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average family medicine physician in 2024
4,144 Medicare Part D claims for 408 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium238 claims
- Levothyroxine Sodium201 claims
- Furosemide185 claims
- Lisinopril179 claims
- Losartan Potassium150 claims
- Amlodipine Besylate138 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Michael A. Grajewski among 3,765 family medicine physician records in Wisconsin
Michael A. Grajewski, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family medicine physician records list a practice address in Watertown
They are 13 of the 366 NPPES records with a practice address in Watertown, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Watertown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Quinn Burton, MDWatertown, WI 530941245557107
- Arjun Patel, MDWatertown, WI 530941942888243
- Robert BodensteinerWest Bend, WI 530951992885354
- Ryszard Cholewa, MDWest Bend, WI 530951346214897
- Peter CorneliusWest Bend, WI 530951538249990
- Peter Cronin, MDWest Bend, WI 530951316932924
- Jennifer George, DOWest Bend, WI 530951215042239
- Steven Holcomb, MDWest Bend, WI 530951962519587
Common questions
What is Michael A. Grajewski, MD's NPI number?
Michael A. Grajewski, MD's National Provider Identifier (NPI) is 1023085685, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Grajewski, MD located?
The NPPES record lists a practice address at 1507 Doctors CT, Watertown, WI, 53094. Phone: (920) 261-4111. Providers update this record themselves, so call before visiting.
How can I verify Michael A. Grajewski, MD's license?
NPPES lists Wisconsin license number 27213, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael A. Grajewski, MD prescribe under Medicare Part D?
In 2024, Michael A. Grajewski, MD had 4,144 Medicare Part D claims for 408 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Michael A. Grajewski, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.