Doctor profile · Federal record

Dr. James Chapman, M.D.

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

  • NPI 1073586913
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
S69 W15636 Janesville Road, Prohealth Care Medical Associates, INC.
Muskego, WI 531509330
(262) 928-7000
fax (414) 422-2075
Mailing address
N17 W24100 Riverwood Drive, Prohealth Care Medical Associates, INC.
Waukesha, WI 531881177

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
November 3, 2011
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Wisconsin #38828
Medicaid
WI #32328800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1073586913. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
731
Distinct HCPCS
10
Medicare allowed
$81,692
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 343 198 $121
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 112 112 $122
99213 Established patient office or other outpatient visit, 20-29 minutes 105 85 $85
G0008 Administration of influenza virus vaccine 36 36 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 34 34 $75
G0009 Administration of pneumococcal vaccine 27 27 $29
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 26 26 $281
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 26 26 $155
90480 Admn sarscov2 vacc 1 dose 11 11 $39
91322 Sarscov2 vac 50 mcg/0.5ml im 11 11 $143

In context: peer comparison

Among 1 peers in Muskego Internal Medicine Physician, average services per provider: 73. This provider delivers 10× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,368
Patients
1,073
Total drug cost
$42,384
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 662 199 $7,403
Lisinopril Generic 344 111 $2,834
Amlodipine Besylate Generic 307 101 $1,879
Pantoprazole Sodium Generic 272 96 $5,211
Losartan Potassium Generic 262 81 $3,487
Levothyroxine Sodium Generic 223 66 $4,035
Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) Brand 205 60 $2,874
Metoprolol Succinate Generic 194 63 $4,042
Simvastatin Generic 192 60 $1,829
Metformin Hcl Generic 148 55 $1,871

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. James Chapman's medical specialty?
Dr. James Chapman practices Internal Medicine Physician in Muskego, WI.
Where does Dr. James Chapman practice?
Dr. James Chapman practices at S69 W15636 Janesville Road, Muskego, WI 531509330. Office phone: 2629287000.
What is Dr. James Chapman's NPI?
Dr. James Chapman's National Provider Identifier (NPI) is 1073586913, issued by NPPES.
Does Dr. James Chapman accept Medicare assignment?
Yes. Dr. James Chapman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Chapman commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.