Doctor profile · Federal record

Dr. John Ganser, DO

Family Medicine Physician (CMS: Family Practice) · Appleton, WI

  • NPI 1922035658
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2809 N Park Drive Ln
Appleton, WI 549111603
(920) 738-4600
fax (920) 738-4792
Mailing address
Po Box 8003
Appleton, WI 549128003

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Wisconsin #38921
Medicaid
WI #30084200

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1922035658. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
552
Distinct HCPCS
8
Medicare allowed
$43,188
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 186 117 $120
36415 Insertion of needle into vein for collection of blood sample 129 86 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 77 72 $84
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 75 75 $122
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 24 12 $22
G0008 Administration of influenza virus vaccine 24 23 $29
90662 Influenza vaccine split virus, preservative free 23 22 $72
77067 Screening mammography 14 14 $87

In context: peer comparison

Among 41 peers in this city , average services per provider: 55. This provider delivers 10× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,629
Patients
781
Total drug cost
$38,706
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 514 141 $7,454
Amlodipine Besylate Generic 292 85 $2,239
Losartan Potassium Generic 235 73 $3,221
Lisinopril Generic 214 63 $1,967
Levothyroxine Sodium Generic 187 47 $4,007
Metformin Hcl Er (Metformin Hcl) Brand 155 50 $1,961
Furosemide Generic 143 48 $1,232
Gabapentin Generic 129 45 $3,541
Tamsulosin Hcl Generic 122 36 $2,734
Omeprazole Generic 115 34 $1,995

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Ganser's medical specialty?
Dr. John Ganser practices Family Medicine Physician in Appleton, WI.
Where does Dr. John Ganser practice?
Dr. John Ganser practices at 2809 N Park Drive Ln, Appleton, WI 549111603. Office phone: 9207384600.
What is Dr. John Ganser's NPI?
Dr. John Ganser's National Provider Identifier (NPI) is 1922035658, issued by NPPES.
Does Dr. John Ganser accept Medicare assignment?
Yes. Dr. John Ganser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Ganser commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.