Individual provider

Rory Makielski, MD

Hematology (Internal Medicine) Physician Medical Oncology Physician Hematology & Oncology Physician Medicare enrolled

Rory Makielski, MD is a Hematology & Oncology Physician in Madison, WI, registered under NPI 1750600557. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 600 HIGHLAND AVE, Madison, WI 53792. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

600 HIGHLAND AVE, Madison, WI 53792 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
60874 WI Hematology (Internal Medicine) Physician
60874 WI Medical Oncology Physician
60874-20 WI Hematology & Oncology Physician primary

This provider holds licence 60874 issued in WI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Hematology/oncology
PAC ID
0244463016
Enrollment ID
I20160822001381

Medicare enrolment is recorded as approved under the provider type Practitioner - Hematology/oncology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Hematology & Oncology covers

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered. NUCC Health Care Provider Taxonomy, code 207RH0003X
Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207RH0000X Hematology (Internal Medicine) Physician Hematology 60874 WI
207RX0202X Medical Oncology Physician Medical Oncology 60874 WI
207RH0003X Hematology & Oncology Physician Hematology & Oncology 60874-20 WI primary

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1750600557 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMay 19, 2010
Last updatedAug 27, 2025
StatusActive
Sole proprietorNo
GenderMale
CredentialMD
Practice address 600 HIGHLAND AVE
Madison, WI 53792
(608) 915-0100
Fax (608) 266-6020
Mailing address 7974 UW HEALTH CT
Middleton, WI 53562
Other identifiers 1750600557 · Medicaid (WI)
This record was updated on Aug 27, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1750600557 passes the NPI check digit test The final digit 7 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 7 5 0 6 0 0 5 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 7 1 0 3 0 0 5 1

Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1750600557?
NPI 1750600557 is the National Provider Identifier assigned to Rory Makielski, MD in Madison, WI. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Hematology & Oncology cover?
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of…
How do I contact Rory Makielski, MD?
The phone number on file with NPPES is (608) 915-0100, last updated Aug 27, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Rory Makielski, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1750600557 a valid number?
Yes. 1750600557 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.