Mazen A. Alkhalisy, MD
Internal Medicine Physician · Green Bay, WI
Mazen A. Alkhalisy, MD is an internal medicine physician with a practice address in Green Bay, Wisconsin, and NPI 1417931106, issued on Dec 6, 2005. Check the license (Wisconsin 44696, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mazen A. Alkhalisy
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 44696 WI
Self-reported in NPPES; status is on the state search - Practice location
- 704 S Webster Ave, Green Bay, WI 54301
- Phone
- (920) 433-3784
- Enumerated
- Dec 6, 2005
- Record last updated
- Mar 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060307000324); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 704 S Webster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Anderson, NPWomen's Health Nurse Practitioner1235444225
- Pamela Baeten, M.D.Endocrinology, Diabetes & Metabolism Physician1932102787
- Amanda Charniak, APNPFamily Nurse Practitioner1114653367
- Francisco Cruz, MDEndocrinology, Diabetes & Metabolism Physician1184605339
- Jennifer Cunningham, MDEndocrinology, Diabetes & Metabolism Physician1790771962
- Barry Daughtry, M.D.Family Medicine Physician1871526012
Verify Mazen A. Alkhalisy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44696Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average internal medicine physician in 2024
725 Medicare Part D claims for 218 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Pantoprazole Sodium42 claims
- Lisinopril35 claims
- Amlodipine Besylate33 claims
- Potassium Chloride30 claims
- Atorvastatin Calcium29 claims
- Metoprolol Succinate29 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 one group practice
- Apogee Medical Group Wisconsin SCGreen Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
69 internal medicine physician records list a practice address in Green Bay
They are 69 of the 4,619 NPPES records with a practice address in Green Bay, and 2,078 internal medicine physician records in Wisconsin.
All 69 in Green Bay → All 2,078 in Wisconsin → Every provider in Green Bay →
Other internal medicine physician records in Wisconsin
- Sheetal Aatrai, MDMarshfield, WI1417568965
- Khalid Abdelgadir, MDManitowoc, WI1407433295
- Mesfin Abdissa, MDMilwaukee, WI1376579417
- Anas Abed, MDMadison, WI1659002566
- Margaret Abel, MDRhinelander, WI1477590487
- Mesfin Abera, M.D.Beaver Dam, WI1972852390
- Vidthya Abraham, M.D.Madison, WI1861836058
- Ismael Abu Limon, MDGreenfield, WI1467945543
- Amjed Abu Muhanna, MDMarinette, WI1861514135
- Satish Achanti, MDAppleton, WI1982711198
Common questions
What is Mazen A. Alkhalisy, MD's NPI number?
Mazen A. Alkhalisy, MD's National Provider Identifier (NPI) is 1417931106, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mazen A. Alkhalisy, MD located?
The NPPES record lists a practice address at 704 S Webster Ave, Green Bay, WI, 54301. Phone: (920) 433-3784. Providers update this record themselves, so call before visiting.
How can I verify Mazen A. Alkhalisy, MD's license?
NPPES lists Wisconsin license number 44696, 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 Mazen A. Alkhalisy, MD prescribe under Medicare Part D?
In 2024, Mazen A. Alkhalisy, MD had 725 Medicare Part D claims for 218 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.