GREGORY C. THOM M.D. – NPI #1689802977
Surgery

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Health Care Provider Taxonomy Code for Surgery

GREGORY THOM is a surgeon located in GREEN BAY, WI. NPPES has assigned the NPI number 1689802977 to GREGORY THOM on June 25, 2009. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 2086S0129X from the Health Care Provider Taxonomy code set, which is classified as Surgery, specializing in Vascular Surgery

The NPI profile was last updated on Aug 15, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for GREGORY THOM below.

NPI Profile for
GREGORY C. THOM

NPI Number
1689802977
Enumeration Date

(about 17 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
GREGORY C. THOM
Credentials
M.D.
Primary location
2845 GREENBRIER RD STE 230
GREEN BAY, WI 54311-6519
Phone: (920) 288-8250 Fax: (920) 288-8257
Mailing address
PO BOX 735044
CHICAGO, IL 60673-5044
Phone: (800) 326-2250 Fax:
Sole Proprietor
No
Updated
Certification Date
Aug 15, 2025

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for GREGORY THOM

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
medicaidWI100059317
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
2086S0129X
- Surgery / Vascular Surgery (Primary)		 WI 65518-20
208600000X
- Surgery		 WI 65518-20

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

View All Endpoint(s)
Endpoint
[email protected]
Endpoint type
Direct Messaging Address
Endpoint Description
Content Type
Affiliation
N
Endpoint Location
2845 GREENBRIER RD STE 230,
GREEN BAY, WI 77025-1669
Endpoint
https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Endpoint type
FHIR URL
Endpoint Description
Content Type
Affiliation
N
Endpoint Location
2845 GREENBRIER RD STE 230,
GREEN BAY, WI 77025-1669

Additional Information

Education
MEDICAL COLLEGE OF WISCONSIN - Graduated 2009
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
GREGORY THOM is affiliated with the following medical group(s):
  • HOSPITAL
    • AURORA BAYCARE MEDICAL CTR
      2845 GREENBRIER RD
      GREEN BAY, WI 54311
    • AURORA MEDICAL CTR MANITOWOC COUNTY
      5000 MEMORIAL DRIVE
      TWO RIVERS, WI 54241
    • BAY AREA MEDICAL CENTER
      3003 UNIVERSITY DR
      MARINETTE, WI 54143

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.