Zach McCallips, MD
Hospitalist Physician · Grafton, WI
Zach McCallips, MD is a hospitalist physician with a practice address in Grafton, Wisconsin, and NPI 1811575558, issued on Apr 1, 2021. Check the license (Wisconsin 81210-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Zach McCallips
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 81210-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 975 Port Washington RD, Grafton, WI 53024
- Phone
- (262) 329-1000
- Enumerated
- Apr 1, 2021
- Record last updated
- Jul 22, 2024
- Medicaid ID
- 100222179 WI
- Medicare enrollment
- Enrolled (PECOS I20240716000378); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 975 Port Washington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hamid Afsari, D.O.Hospitalist Physician1053672048
- Muhammed Al-Fawakhiri, MDInternal Medicine Physician1942276613
- Beverly Altman, LMTMassage Therapist1447888789
- Claudia Altmann, MDInfectious Disease Physician1386691756
- Peter Andrew, AAAnesthesiologist Assistant1821704545
- Patrick AndrewsPhysical Therapist1689481962
Verify Zach McCallips in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 81210-20Check 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 hospitalist physician in 2024
121 Medicare Part D claims for 54 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of 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.
Industry payments in 2024: $15.79
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Grafton, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zach McCallips among 894 hospitalist physician records in Wisconsin
Zach McCallips, MD is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 87% of them.
- NPI issued2021 · 87% of these records are older, 7% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2021 · median 2011 among the 768 with a school on file
- Record last updated2024 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 hospitalist physician records list a practice address in Grafton
They are 14 of the 459 NPPES records with a practice address in Grafton, and 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Grafton → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Hamid Afsari, D.O.Grafton, WI 530241053672048
- Avigdor Asner, DOGrafton, WI 530241962061242
- Kirk Brown, M.D.Grafton, WI 530241861770729
- Anna De La Pena, M.DGrafton, WI 530241659650471
- Mitchell Elgin, D.O.Grafton, WI 530241528421369
- Ran Guan, M.D., M.SGrafton, WI 530241275774192
- Rinya Hanna, MDGrafton, WI 530241932660651
- Hany Marcos, M.D.Grafton, WI 530241396093662
Common questions
What is Zach McCallips, MD's NPI number?
Zach McCallips, MD's National Provider Identifier (NPI) is 1811575558, issued on Apr 1, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Zach McCallips, MD located?
The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-1000. Providers update this record themselves, so call before visiting.
How can I verify Zach McCallips, MD's license?
NPPES lists Wisconsin license number 81210-20, 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 Zach McCallips, MD prescribe under Medicare Part D?
In 2024, Zach McCallips, MD had 121 Medicare Part D claims for 54 beneficiaries; the average among hospitalist physician prescribers was 521. 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.