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GEORGE A CORTAS MD
NPI 1194802074
Internal Medicine - Gastroenterology in Eau Claire, WI

Active since October 31, 2006PECOS EnrolledAccepts Medicare Assignment
78.85/100
CMS Quality Rating
2116 CRAIG RD, EAU CLAIRE, WI 54701(715) 858-4500(715) 858-4501 Get Directions Write a Review

NPPES record last updated: October 24, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 24, 2023, Dec 15, 2021 (2 updates tracked since 2021).

About George A Cortas Md NPPES

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

GEORGE A CORTAS MD (NPI 1194802074) is an individual gastroenterology provider in Eau Claire, Wisconsin, licensed in Wisconsin (77338) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Coliseum Medical Centers, Llc, Dba, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1194802074
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameGEORGE A CORTASCredential: MD
Location Address2116 CRAIG RDEau Claire, WI 54701-6118
Mailing AddressPo Box 2490Williamson, WV 25661-2490 · (304) 429-1520 · Fax (304) 429-1570
Phone(715) 858-4500
Fax(715) 858-4501
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateOctober 31, 2006
Last NPPES UpdateOctober 24, 20232 updates tracked since enumeration
NPPES CertifiedOctober 24, 2023
✔ NPI 1194802074 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in WI · 77338✔ Licensed in WV · 19129
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
2116 CRAIG RD, Eau Claire, WI 54701
Open in Google Maps ↗

Other Identifiers 2

Medicaid0088462000WV
Medicaid64942030KY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

George A Cortas Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476553108
PECOS Enrollment IDI20250116000406
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.

Medicare Billing Reassignments

8

Medicare enrollment records show George Cortas reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mchs Hospitals Inc
0.1 mi
Clinic/Center
2310 CRAIG RD
Eau Claire, WI 54701
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1952890873 (Wisconsin)
  • 2,476 clinicians in this Medicare group
NPI 1316416035 (715) 858-8100
Lakeview Medical Center Inc Of Rice Lake
36 mi
Clinic/Center
806 2ND ST
Chetek, WI 54728
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,616 clinicians in this Medicare group
NPI 1659008605 (715) 924-2000
Memorial Hospital Inc
47 mi
Clinic/Center
N3708 RIVER AVE
Neillsville, WI 54456
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1346239373 (Wisconsin)
  • 1,440 clinicians in this Medicare group
NPI 1033701800 (715) 743-3101
Marshfield Clinic Inc
66 mi
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,540 clinicians in this Medicare group
NPI 1952347981 (715) 387-5511
Flambeau Hospital Inc
94 mi
Clinic/Center
98 SHERRY AVE
Park Falls, WI 54552
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1700963048 (Wisconsin)
  • 1,351 clinicians in this Medicare group
NPI 1194317966 (715) 762-2484
Beaver Dam Community Hosptials Inc
159 mi
Family Medicine
1580 W JAMES ST
Columbus, WI 53925
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: Beaver Dam Community Hospitals Inc.
  • 1,447 clinicians in this Medicare group
NPI 1275833659 (920) 350-0235
University Healthcare Physicians Inc
785 mi
Anesthesiology
2500 FOUNDATION WAY
Martinsburg, WV 25401
  • Reassigned Medicare billing, West Virginia enrollment
  • 208 clinicians in this Medicare group
NPI 1417371329 (304) 264-9202
Piedmont Specialty Hospital Billing LLC
807 mi
Internal Medicine
1266 HIGHWAY 515 S
Jasper, GA 30143
  • Reassigned Medicare billing, Georgia enrollment
  • 317 clinicians in this Medicare group
NPI 1699290510 (770) 801-2500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
23 services23 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
14 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Coliseum Medical Centers, LLC, Dba

Acute Care Hospitals · Macon, GA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110164
Location350 Hospital DriveMacon, GA 31217 · Bibb County
Emergency services Birthing friendly

Piedmont Macon North Hospital

Acute Care Hospitals · Macon, GA
4/5 CMS rating
OwnershipProprietary
CMS Certification Number110201
Location400 Charter BoulevardMacon, GA 31210 · Bibb County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54701 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.68
Promoting Interoperability99
Improvement Activities40
Cost54.87

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.

ANNA MARIE BYRNE DPT
Physical Therapist
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4500
TRACIE ANNE BUTLER FNP
Nurse Practitioner (Family)
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4560
SETH E BOLLINGER CRNA
Nurse Anesthetist, Certified Registered
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4500
MYLES DAVID KEROACK MD
Internal Medicine (Gastroenterology)
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4500
BRYAN D. POOLER PA
Physician Assistant
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4500
SHANA L VIFIAN RAY M.D.
Psychiatry & Neurology (Sleep Medicine)
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4500
KAREN JOY JOHNSON CNM
Advanced Practice Midwife
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4646
RALPH W FITZ MD
Internal Medicine (Interventional Cardiology)
2116 CRAIG RD
EAU CLAIRE, WI 54701
Eau Claire County (715) 858-4500

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 George Cortas's NPI number?

The NPI number for George Cortas is 1194802074. It was assigned to this individual provider in the NPPES registry on October 31, 2006.

Where is George Cortas located?

George Cortas practices at 2116 Craig Rd, Eau Claire, WI 54701. The listed phone number is (715) 858-4500.

What is George Cortas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is George Cortas enrolled in Medicare?

Yes. George Cortas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for George Cortas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Cortas reassigns Medicare benefits to 8 organizations: Mchs Hospitals Inc (Eau Claire, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI), Memorial Hospital Inc (Neillsville, WI), Marshfield Clinic Inc (Marshfield, WI), Flambeau Hospital Inc (Park Falls, WI) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for George Cortas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does George Cortas accept?

Health plans from Anthem Blue Cross and Blue Shield and Sanford Health Plan list George Cortas 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.

Is George Cortas affiliated with any hospitals?

According to CMS data, George Cortas is affiliated with Coliseum Medical Centers, LLC, Dba and Piedmont Macon North Hospital.

When was this NPI record last updated?

The NPPES record for George Cortas was last updated on October 24, 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.