Doctor profile · Federal record

Dr. Karen Stammer, M.D.

Hospice and Palliative Medicine (Internal Medicine) Physician · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Madison, WI

  • NPI 1013283936
  • 14 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
202 S Park St, Meriter Hospital
Madison, WI 537151507
(608) 417-5695

Credentials & registration

NPPES · NUCC
NPI registered
March 2012 — 14 yrs on file
Profile last updated
March 8, 2017
Specialty taxonomy
207RH0002X — NUCC code
State license (1)
Wisconsin #62431

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013283936. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
62
Distinct HCPCS
3
Medicare allowed
$5,219
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 30 20 $74
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 20 20 $122
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 12 11 $46

In context: peer comparison

Among 6 peers in this city , average services per provider: 43. This provider delivers 1.4× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Stammer's medical specialty?
Dr. Karen Stammer practices Hospice and Palliative Medicine (Internal Medicine) Physician in Madison, WI.
Where does Dr. Karen Stammer practice?
Dr. Karen Stammer practices at 202 S Park St, Madison, WI 537151507. Office phone: 6084175695.
What is Dr. Karen Stammer's NPI?
Dr. Karen Stammer's National Provider Identifier (NPI) is 1013283936, issued by NPPES.
What procedures does Dr. Karen Stammer commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.