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KAREN M LOOMANS MD
NPI 1649246596
Internal Medicine in Waunakee, WI

Active since February 28, 2006PECOS Enrolled
1603 CHARLESTON CIR, WAUNAKEE, WI 53597(608) 265-7550 Get Directions Write a Review

NPPES record last updated: October 3, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Karen M Loomans Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN M LOOMANS MD (NPI 1649246596) is an individual internal medicine provider in Waunakee, Wisconsin, licensed in Wisconsin (31274) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of University Of Wisconsin School Of Medicine (1989).

NPPES Registry Identity

NPI1649246596
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN M LOOMANSCredential: MD
Location Address1603 CHARLESTON CIRWaunakee, WI 53597-2332
Mailing Address1603 Charleston CirWaunakee, WI 53597-2332
Phone(608) 265-7550
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 1989
Enumeration DateFebruary 28, 2006
Last NPPES UpdateOctober 3, 2025
NPPES CertifiedOctober 3, 2025
✔ NPI 1649246596 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 31274
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1603 CHARLESTON CIR, Waunakee, WI 53597
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen M Loomans Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3577693266
PECOS Enrollment IDI20100607000273
Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
176 services168 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
66 services66 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
51 services48 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
39 services38 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
22 services22 patients
Manual urinalysis test with examination using microscope, automated 81001
A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.
20 services18 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Unitypoint Health - Meriter

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520089
Location202 S Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53597 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 11

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
12 suppliers32 claims90 services$5.05 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
1 supplier19 claims19 services$35.60 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
1 supplier18 claims103 services$14.33 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
1 supplier26 claims26 services$55.64 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
1 supplier21 claims21 services$17.02 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
1 supplier25 claims150 services$2.01 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Loomans's NPI number?

The NPI number for Karen Loomans is 1649246596. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Where is Karen Loomans located?

Karen Loomans practices at 1603 Charleston Cir, Waunakee, WI 53597. The listed phone number is (608) 265-7550.

What is Karen Loomans's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karen Loomans enrolled in Medicare?

Yes. Karen Loomans is registered in the Medicare PECOS enrollment system.

Is Karen Loomans affiliated with any hospitals?

According to CMS data, Karen Loomans is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Karen Loomans was last updated on October 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.