Doctor profile · Federal record

Dr. Melissa Themar Geck, MD

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · St Francis, WI

  • NPI 1861641565
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
2000 E Layton Ave
St Francis, WI 532356053
(414) 744-6589
Additional location
855 N Westhaven Dr
Oshkosh, WI 549047668
(920) 303-8700
fax (920) 303-5630
Additional location
529 E Central Ave
Winter Haven, FL 338803054
(863) 299-1155
fax (863) 299-1177
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
September 2008 — 18 yrs on file
Profile last updated
February 15, 2024
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (2)
Wisconsin #63372 · Florida #ME103402
Medicaid
WI #100042732

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861641565. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,038
Distinct HCPCS
10
Medicare allowed
$43,039
HCPCS Description Services Patients Avg allowed
77067 Screening mammography 201 201 $34
77063 Screening 3d breast mammography 200 200 $27
71046 X-ray of chest, 2 views 122 122 $31
77067 Screening mammography 113 113 $114
77063 Screening 3d breast mammography 90 90 $47
76536 Ultrasound scan of head and neck soft tissue 75 75 $25
71046 X-ray of chest, 2 views 59 57 $10
76536 Ultrasound scan of head and neck soft tissue 40 40 $104
71045 X-ray of chest, 1 view 32 32 $8
77065 Diagnostic mammography of 1 breast 18 14 $37

In context: peer comparison

Among 22 peers in St Francis Diagnostic Radiology Physician, average services per provider: 104. This provider delivers 10.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Melissa Themar Geck's medical specialty?
Dr. Melissa Themar Geck practices Diagnostic Radiology Physician in St Francis, WI.
Where does Dr. Melissa Themar Geck practice?
Dr. Melissa Themar Geck practices at 2000 E Layton Ave, St Francis, WI 532356053. Office phone: 4147446589.
What is Dr. Melissa Themar Geck's NPI?
Dr. Melissa Themar Geck's National Provider Identifier (NPI) is 1861641565, issued by NPPES.
Does Dr. Melissa Themar Geck accept Medicare assignment?
Yes. Dr. Melissa Themar Geck accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Themar Geck commonly perform?
Top Medicare-reported procedures in 2023: Screening mammography (HCPCS 77067); Screening 3d breast mammography (HCPCS 77063); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.