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MARK L THAYER MD
NPI 1568424778
Surgery in Grantsburg, WI

Active since April 04, 2006PECOS Enrolled
257 W SAINT GEORGE AVE, GRANTSBURG, WI 54840(715) 463-5353(715) 463-2753 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 21, 2022, Sep 12, 2017 (2 updates tracked since 2017).

About Mark L Thayer Md NPPES

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

MARK L THAYER MD (NPI 1568424778) is an individual surgery provider in Grantsburg, Wisconsin, licensed in Wisconsin (32528) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1568424778
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameMARK L THAYERCredential: MD
Location Address257 W SAINT GEORGE AVEGrantsburg, WI 54840-7827
Mailing Address257 W Saint George AveGrantsburg, WI 54840-7827 · (715) 463-5353 · Fax (715) 463-2753
Phone(715) 463-5353
Fax(715) 463-2753
Sole ProprietorNo
Enumeration DateApril 4, 2006
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
✔ NPI 1568424778 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in WI · 32528✔ Licensed in MN · 31570
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 32528 (WI)
257 W SAINT GEORGE AVE, Grantsburg, WI 54840
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Other Identifiers 1

Medicaid918723500MN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark L Thayer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54840 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH MARIE PETROWITZ PTA
Physical Therapy Assistant
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-7254
BURNETT MEDICAL CENTER INC
Medicare Defined Swing Bed Unit
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-5355
MRS. RENAE ANDREA ROMBACH P.T.
Physical Therapist
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-5353
ADEOLA A JOLAYEMI MD
Family Medicine
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-5317
GRETCHEN JEAN GEROVAC NP
Nurse Practitioner (Gerontology)
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-5353
ERICA LYNN RISTOW
Physical Therapist
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-7253
DEBRA HARRIS HAMMER CNM
Advanced Practice Midwife
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-5317
BRANDIE MARIE HANSON P.T.A.
Physical Therapy Assistant
257 W SAINT GEORGE AVE
GRANTSBURG, WI 54840
Burnett County (715) 463-7259

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 Mark Thayer's NPI number?

The NPI number for Mark Thayer is 1568424778. It was assigned to this individual provider in the NPPES registry on April 4, 2006.

Where is Mark Thayer located?

Mark Thayer practices at 257 W Saint George Ave, Grantsburg, WI 54840. The listed phone number is (715) 463-5353.

What is Mark Thayer's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mark Thayer enrolled in Medicare?

Yes. Mark Thayer is registered in the Medicare PECOS enrollment system.

What insurance does Mark Thayer accept?

Health plans from Medica list Mark Thayer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Thayer was last updated on July 21, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.