Doctor profile · Federal record

Dr. Sandra Sieck, MD

Internal Medicine Physician (CMS: Internal Medicine) · La Crosse, WI

  • NPI 1528609039
  • Accepts Medicare
  • 37 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1836 South Ave
La Crosse, WI 546015429
(608) 782-7300

Credentials & registration

NPPES · NUCC
NPI registered
October 2019 — 7 yrs on file
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wisconsin #59976

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1528609039. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
198
Distinct HCPCS
3
Medicare allowed
$24,929
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 101 100 $136
99204 New patient office or other outpatient visit, 45-59 minutes 67 67 $127
99214 Established patient office or other outpatient visit, 30-39 minutes 30 30 $91

In context: peer comparison

Among 36 peers in this city , average services per provider: 83. This provider delivers 2.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$17,024
Transactions
9
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Daxor Corporation 9 $17,023.70

By nature of payment

Consulting Fee
$16,624
Travel and Lodging
$400

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sandra Sieck's medical specialty?
Dr. Sandra Sieck practices Internal Medicine Physician in La Crosse, WI.
Where does Dr. Sandra Sieck practice?
Dr. Sandra Sieck practices at 1836 South Ave, La Crosse, WI 546015429. Office phone: 6087827300.
What is Dr. Sandra Sieck's NPI?
Dr. Sandra Sieck's National Provider Identifier (NPI) is 1528609039, issued by NPPES.
Does Dr. Sandra Sieck accept Medicare assignment?
Yes. Dr. Sandra Sieck accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sandra Sieck commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.