Doctor profile · Federal record

Dr. Michael Westerhaus, M.A., M.D.

Internal Medicine Physician (CMS: Internal Medicine) · St. Paul, MN

  • NPI 1396882759
  • Accepts Medicare
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
451 North Dunlap Street, Mail Stop 32700A Healthpartners Midway Clinic-Center Fo
St. Paul, MN 551042595
(651) 647-2100
fax (651) 647-2201
Mailing address
8170 33Rd Ave S, Ms21110Q
Minneapolis, MN 554254516

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
May 7, 2020
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Minnesota #54640

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396882759. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
286
Distinct HCPCS
9
Medicare allowed
$18,812
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 83 44 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 49 29 $126
99213 Established patient office or other outpatient visit, 20-29 minutes 34 33 $89
99215 Established patient office or other outpatient visit, 40-54 minutes 27 18 $177
83036 Hemoglobin a1c level 25 16 $10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 23 23 $128
G0008 Administration of influenza virus vaccine 19 19 $30
81001 Manual urinalysis test with examination using microscope, automated 13 12 $3
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 13 13 $26

In context: peer comparison

Among 7 peers in St. Paul Internal Medicine Physician, average services per provider: 61. This provider delivers 4.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,545
Patients
434
Total drug cost
$75,535
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 264 76 $3,969
Amlodipine Besylate Generic 183 51 $1,697
Omeprazole Generic 127 34 $1,705
Metformin Hcl Generic 115 36 $1,903
Losartan Potassium Generic 109 31 $1,456
Lisinopril Generic 104 33 $1,312
Levothyroxine Sodium Generic 91 19 $1,789
Gabapentin Generic 86 31 $1,343
Metformin Hcl ER (Metformin Hcl) Brand 75 19 $1,225
Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) Brand 69 19 $48,505

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Westerhaus's medical specialty?
Dr. Michael Westerhaus practices Internal Medicine Physician in St. Paul, MN.
Where does Dr. Michael Westerhaus practice?
Dr. Michael Westerhaus practices at 451 North Dunlap Street, St. Paul, MN 551042595. Office phone: 6516472100.
What is Dr. Michael Westerhaus's NPI?
Dr. Michael Westerhaus's National Provider Identifier (NPI) is 1396882759, issued by NPPES.
Does Dr. Michael Westerhaus accept Medicare assignment?
Yes. Dr. Michael Westerhaus accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Westerhaus commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.