Dr. Gregory Grzesik, D.O.
Hospitalist
13+
Years in Practice
Practice Locations
2 locations
About Dr. Gregory Grzesik
Gregory Grzesik, DO is a healthcare provider practicing in Weston, WI.
Specialty Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
13
Years Experience
2
Locations
2
States Licensed
Credentials & Board Certifications
Additional Specialties
Primary Specialty
HospitalistCredentials verified via NPI Registry (NPPES)
Education & Training
Medical School
Lake Erie College Of Osteopathic Medicine, Erie
Class of 2013
Licenses & Practice States
Licensed in 2 states
| State | License | Classification | Primary |
|---|---|---|---|
| Illinois | 125-062888 | Internal Medicine | — |
| Wisconsin | 65797 | Hospitalist | — |
| Wisconsin | 65797-21 | Internal Medicine |
Public Data Summary for Dr. Gregory Grzesik
With 13 years of practice, Dr. Gregory Grzesik is an established hospitalist provider, D.O., after earning their medical degree at Lake Erie College Of Osteopathic Medicine, Erie in 2013. Dr. currently practices across 2 facilities, including Mchs Hospitals Inc in Weston, Wisconsin. Their National Provider Identifier (NPI) is 1316389372, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.
CMS Medicare data shows Dr. Gregory Grzesik as a lower-volume hospitalist provider, treating approximately 117 Medicare beneficiaries and delivering 382 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.
Transparency & Safety
Public records from CMS and OIG databases
Opioid Prescribing
This provider has no opioid prescriptions on file in Medicare Part D data.
Insurance & Accessibility
Reviews
Community reviews for Dr. Gregory Grzesik
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0 reviews
Hospitalist Providers Nearby
Same primary specialty near ZIP 54476
FAQ
Frequently asked questions about Dr. Gregory Grzesik
What does Dr. Gregory Grzesik specialize in?
Dr. Gregory Grzesik specializes in Hospitalist. Secondary taxonomy filings also list Hospitalist and Internal Medicine.
Where does Dr. Gregory Grzesik practice?
Dr. Gregory Grzesik practices at Mchs Hospitals Inc in Weston, Wisconsin. Dr. is also affiliated with 1 additional facility, listed below.
Does Dr. Gregory Grzesik accept Medicare?
CMS records show that Dr. Gregory Grzesik accepts Medicare assignment. CMS billing data shows 117 Medicare beneficiaries treated in the most recent reporting year.
What is Dr. Gregory Grzesik's NPI number?
Dr. Gregory Grzesik's National Provider Identifier (NPI) is 1316389372. This is the unique 10-digit number the Centers for Medicare & Medicaid Services assigns to every practicing US healthcare provider. You can verify this number directly at the NPPES NPI Registry.
How long has Dr. Gregory Grzesik been practicing?
Dr. Gregory Grzesik has approximately 13 years of practice experience, having graduated from Lake Erie College Of Osteopathic Medicine, Erie in 2013.