KAREN LYNN STAMMER (M.D.) – Hospice and Palliative Medicine (Internal Medicine) Physician, NPI 1013283936

Hospice and Palliative Medicine (Internal Medicine) Physician

KAREN LYNN STAMMER (M.D.) is a healthcare provider. based in Madison, Wisconsin. specializing in Hospice and Palliative Medicine (Internal Medicine) Physician. They hold the professional credentials M.D.. They hold a License No. 62431 (WI). The NPI Number for KAREN LYNN STAMMER (M.D.) is 1013283936

Main info

Female

14 Years Of Experience

Accepts Medicare Assignment

Name

KAREN LYNN STAMMER (M.D.)

NPI

1013283936

Phone

(608) 417-5695

Address

202 S PARK ST

Enumeration Date

25 March 2012

Last Update Date

8 March 2017

Doctor Profile

Medical School Name

OTHER

Secondary Phone

6084176000

Graduation Year

2012 (14 years ago)

PAC ID

3173829595

Group Practice PAC ID

3971412735

Professional Enrollment ID

I20160824000201

Data current as of

20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience52

Completeness75

Years active:14State licenses:1Digital endpointsOther names

Provider Addresses for KAREN LYNN STAMMER (M.D.)

202 S PARK ST
MADISON, WI 537151507
Phone: (608) 417-5695
Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCS	Description	Services	Beneficiaries	Medicare allowed
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	30	20	$0
99222	Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	20	$0
99231	Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes	12	11	$0

View full utilization report →

Insurance plans in this area (ZIP 53715)

Loading plans...

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 3971412735View full group profile

Name	Specialty	State
DR. PAUL H HINDERAKER (MD)	-	WI
SARA ELIZABETH O'DONNELL	Nurse Practitioner	WI
IOANA HUIBREGTSE (APN, FNP-C)	Nurse Practitioner	WI
MRS. ANGELINE AMY FOSTER (DNP, APNP)	Nurse Practitioner	WI
DR. JAYA LAKSHMI KRISHNA (M.D., FACC)	Internal Medicine, Cardiovascular Disease (Cardiology)	WI
ERIK DAVID WELLS (M.D.)	Internal Medicine	WI
MRS. ASHLEY KATHERINE LAHA (PA-C)	-	WI
DR. THOMAS R WALLHAUS (MD)	Cardiovascular Disease (Cardiology), Internal Medicine	WI
RITU S. BHATNAGAR (M.D.)	-	WI
MONICA HARMS	-	WI

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is KAREN LYNN STAMMER (M.D.)'s NPI number?

KAREN LYNN STAMMER (M.D.)'s NPI is 1013283936 — the number used across U.S. healthcare to identify this provider.

Is KAREN LYNN STAMMER (M.D.) shown as active in public data?

Registry records indicate KAREN LYNN STAMMER (M.D.) maintains an active NPI.

What expertise is attributed to KAREN LYNN STAMMER (M.D.)?

KAREN LYNN STAMMER (M.D.)'s specialty line reads Hospice and Palliative Medicine (Internal Medicine) Physician. Clinical services aligned with this taxonomy classification.

What locale is associated with KAREN LYNN STAMMER (M.D.)?

Directory geography for KAREN LYNN STAMMER (M.D.) centers on Madison, Wisconsin.

Can I trust this NPI listing for KAREN LYNN STAMMER (M.D.)?

The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.