Doctor profile · Federal record

Dr. Michael Schoenwalder, D.O.

Internal Medicine Physician · Ballwin, MO

  • NPI 1588631238
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
15945 Clayton RD, Suite 310
Ballwin, MO 630112490
(636) 256-5350
fax (636) 256-5372

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
May 13, 2011
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Missouri #2003014482

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588631238. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$15
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Acella Pharmaceuticals, LLC 1 $14.55

By nature of payment

Food and Beverage
$15

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,528
Patients
529
Total drug cost
$184,436
Drug Type Claims Patients Total cost
Liothyronine Sodium Generic 196 55 $16,673
Alprazolam Generic 153 30 $1,136
Losartan Potassium Generic 144 42 $1,483
Levothyroxine Sodium Generic 134 39 $1,684
Amlodipine Besylate Generic 129 36 $995
Ozempic (Semaglutide) Brand 119 29 $148,803
Lisinopril Generic 90 22 $786
Doxycycline Hyclate Generic 74 66 $1,301
Armour Thyroid (Thyroid,Pork) Brand 73 19 $6,061
Rosuvastatin Calcium Generic 72 28 $936

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Schoenwalder's medical specialty?
Dr. Michael Schoenwalder practices Internal Medicine Physician in Ballwin, MO.
Where does Dr. Michael Schoenwalder practice?
Dr. Michael Schoenwalder practices at 15945 Clayton RD, Ballwin, MO 630112490. Office phone: 6362565350.
What is Dr. Michael Schoenwalder's NPI?
Dr. Michael Schoenwalder's National Provider Identifier (NPI) is 1588631238, issued by NPPES.