GREG WILLIAM MCCORMACK M.D.
NPI 1861750788
Internal Medicine - Medical Oncology in Frederic, WI

Q: What is Greg Mccormack's NPI number?

The NPI number for Greg Mccormack is 1861750788. It was assigned to this individual provider in the NPPES registry on April 28, 2012.

Q: What is Greg Mccormack's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: Is Greg Mccormack enrolled in Medicare?

No. Greg Mccormack has opted out of Medicare through February 16, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Greg Mccormack was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 28, 2012Opted out of Medicare · through Feb 16, 2028

20911 SUNSET LNDG, FREDERIC, WI 54837(715) 327-8045 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Greg William Mccormack M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREG WILLIAM MCCORMACK M.D. (NPI 1861750788) is an individual medical oncology provider in Frederic, Wisconsin, licensed in Wisconsin (47030-20) and active in the NPI registry since April 2012. He has opted out of Medicare through February 16, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1861750788

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameGREG WILLIAM MCCORMACKCredential: M.D.

Location Address20911 SUNSET LNDGFrederic, WI 54837-9055

Mailing Address20911 Sunset LndgFrederic, WI 54837-9055 · (715) 327-8045

Phone(715) 327-8045

Sole ProprietorYes

Enumeration DateApril 28, 2012

Last NPPES UpdateMarch 7, 2023

✔ NPI 1861750788 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in WI · 47030-20

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

20911 SUNSET LNDG, Frederic, WI 54837

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

Greg William Mccormack M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 16, 2016 through February 16, 2028.

Opt-Out Effective DateFebruary 16, 2016

Opt-Out In Effect ThroughFebruary 16, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54837 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$163.24 typical visit price

range $53.90 – $163.24

Typical copayment $40.81 (range $13.47 – $40.81)

Most-billed visit code 99205

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Greg Mccormack's NPI number?

The NPI number for Greg Mccormack is 1861750788. It was assigned to this individual provider in the NPPES registry on April 28, 2012.

Where is Greg Mccormack located?

Greg Mccormack practices at 20911 Sunset Lndg, Frederic, WI 54837. The listed phone number is (715) 327-8045.

What is Greg Mccormack's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Greg Mccormack enrolled in Medicare?

No. Greg Mccormack has opted out of Medicare through February 16, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Greg Mccormack was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.