Julie M. Kowacz, MD
Internal Medicine Physician · Grand Haven, MI
Julie M. Kowacz, MD is an internal medicine physician with a practice address in Grand Haven, Michigan, and NPI 1235231309, issued on Sep 1, 2006. Check the license (Michigan 4301093783, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Julie M. Kowacz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301093783 MI
Self-reported in NPPES; status is on the state search - Practice location
- 15100 Whittaker Way, Grand Haven, MI 49417
- Phone
- (616) 935-6210
- Enumerated
- Sep 1, 2006
- Record last updated
- Nov 1, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090724000409); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 15100 Whittaker Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Valerie Ahern, N.P.Family Nurse Practitioner1588665574
- Thomas Alguire, M.D.Internal Medicine Physician1952303117
- Karoline Arsenault, PA-CPhysician Assistant1720547250
- David Blanchard, OTOccupational Therapist1588103667
- Samantha Bock, CRNACertified Registered Nurse Anesthetist1780256594
- Daniela Borecky, MDFamily Medicine Physician1427511773
Verify Julie M. Kowacz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301093783Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
193 Medicare Part D claims for 143 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin27 claims
- Amoxicillin-Clavulanate Potass22 claims
- Prednisone18 claims
- Doxycycline Hyclate16 claims
- Mupirocin13 claims
- Albuterol Sulfate Hfa12 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.
One hospital affiliation
- Holland Community HospitalHolland, MI · Acute Care Hospitals5 of 5 stars
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.
Julie M. Kowacz among 5,735 internal medicine physician records in Michigan
Julie M. Kowacz, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2005 · median 2006 among the 3,564 with a school on file
- Record last updated2018 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 internal medicine physician records list a practice address in Grand Haven
They are 13 of the 665 NPPES records with a practice address in Grand Haven, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Grand Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Alguire, M.D.Grand Haven, MI 494171952303117
- Nina Bryhn, MDGrand Haven, MI 494171811676430
- Edward Hatt, MDGrand Haven, MI 494171770587008
- James Heyboer, MDGrand Haven, MI 494171255548442
- Carlyn Hoeppner, MDGrand Haven, MI 494171447678115
- Lauren Lane, D.O.Grand Haven, MI 494171225299928
- John Mc Aree, MDGrand Haven, MI 494171902845654
- Marilena Oravitan, MDGrand Haven, MI 494171891752168
Common questions
What is Julie M. Kowacz, MD's NPI number?
Julie M. Kowacz, MD's National Provider Identifier (NPI) is 1235231309, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Julie M. Kowacz, MD located?
The NPPES record lists a practice address at 15100 Whittaker Way, Grand Haven, MI, 49417. Phone: (616) 935-6210. Providers update this record themselves, so call before visiting.
How can I verify Julie M. Kowacz, MD's license?
NPPES lists Michigan license number 4301093783, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Julie M. Kowacz, MD prescribe under Medicare Part D?
In 2024, Julie M. Kowacz, MD had 193 Medicare Part D claims for 143 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.