Doctor profile · Federal record

Dr. Debra Muggler, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Waukesha, WI

  • NPI 1942274055
  • Accepts Medicare
  • 31 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
N16W24131 Riverwood Dr, Pewaukee Clinic
Waukesha, WI 531881106
(262) 696-5690

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
December 27, 2017
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wisconsin #41103
Medicaid
WI #32567200

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942274055. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,067
Distinct HCPCS
10
Medicare allowed
$99,352
HCPCS Description Services Patients Avg allowed
93793 Anticoagulant management of patient taking warfarin 1,088 308 $11
99214 Established patient office or other outpatient visit, 30-39 minutes 363 188 $121
85610 Blood test, clotting time 203 53 $4
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 179 179 $121
99213 Established patient office or other outpatient visit, 20-29 minutes 81 76 $85
G0008 Administration of influenza virus vaccine 40 40 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 34 34 $76
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 20 20 $155
99215 Established patient office or other outpatient visit, 40-54 minutes 18 17 $169
G0009 Administration of pneumococcal vaccine 16 16 $29

In context: peer comparison

Among 11 peers in Waukesha Internal Medicine Physician, average services per provider: 120. This provider delivers 17× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,870
Patients
1,008
Total drug cost
$44,007
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 702 180 $6,484
Levothyroxine Sodium Generic 396 92 $6,307
Alendronate Sodium Generic 339 93 $3,384
Amlodipine Besylate Generic 328 88 $2,001
Rosuvastatin Calcium Generic 258 64 $3,865
Lisinopril Generic 256 66 $1,973
Omeprazole Generic 244 68 $4,259
Metoprolol Succinate Generic 243 63 $4,165
Simvastatin Generic 216 57 $2,240
Losartan Potassium Generic 170 47 $1,993

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Debra Muggler's medical specialty?
Dr. Debra Muggler practices Internal Medicine Physician in Waukesha, WI.
Where does Dr. Debra Muggler practice?
Dr. Debra Muggler practices at N16W24131 Riverwood Dr, Waukesha, WI 531881106. Office phone: 2626965690.
What is Dr. Debra Muggler's NPI?
Dr. Debra Muggler's National Provider Identifier (NPI) is 1942274055, issued by NPPES.
Does Dr. Debra Muggler accept Medicare assignment?
Yes. Dr. Debra Muggler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Debra Muggler commonly perform?
Top Medicare-reported procedures in 2023: Anticoagulant management of patient taking warfarin (HCPCS 93793); Established patient office or other outpatient visit (HCPCS 99214); Blood test, clotting time (HCPCS 85610). Source: CMS Medicare Physician & Other Practitioners file.