Individual Healthcare Provider
Maria D De Villa, M.D.
Provider's NPPES record last updated: September 18, 2019
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1538321252
- Primary Specialty
- Internal Medicine — Medical Oncology
- Practice Location
- Green Bay, Wisconsin
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 19, 2026, 9:50 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Internal Medicine
Medical Oncology
Allopathic & Osteopathic Physicians
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.
Taxonomy code 207RX0202X Internal Medicine
Hematology & Oncology
Allopathic & Osteopathic Physicians
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.
Taxonomy code 207RH0003X
Provider-Reported License Information
- Internal Medicine (Wisconsin)
- 65835-20
- Internal Medicine (Nebraska)
- 24698
Practice Locations
Practice Location
1580 Commanche Ave
Green Bay, Wisconsin 54313-5751
Phone: (920) 435-8326
Additional Practice Location
744 S Webster Ave
Green Bay, Wisconsin 54301-3505
Phone: (920) 433-3500
Fax: (920) 445-7301
Additional Practice Location
820 Arbutus Ave
Oconto, Wisconsin 54153-2004
Phone: (920) 835-1100
Fax: (920) 835-1099
Additional Practice Location
2820 Roosevelt Rd
Marinette, Wisconsin 54143-3834
Phone: (715) 735-5225
Fax: (715) 735-5388
Record Information
- Enumeration Date
- June 25, 2008
- Provider's NPPES Record Last Updated
- September 18, 2019
- NPISignal NPPES Dataset
- August 2026
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