Doctor profile · Federal record
Dr. Donald Westerhausen, MD
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Internal Medicine Physician · Mishawaka, IN
- NPI 1437491974
- Accepts Medicare
- 13 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
611 E Douglas RD Ste 309
Mishawaka, IN 465451467
(574) 335-6900
fax (574) 335-0854 - Mailing address
-
707 Cedar St Ste 405
South Bend, IN 466172059
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- August 7, 2023
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State licenses (2)
- Indiana #01076759A · Illinois #125.063787
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437491974. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
340
Distinct HCPCS
10
Medicare allowed
$37,638
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 83 | 34 | $200 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 51 | 51 | $157 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 31 | 31 | $105 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 26 | 26 | $85 | |
94060 |
Test to measure expiratory airflow and volume changes before and after medication administration | 24 | 24 | $10 | |
94726 |
Test to determine lung volumes using sensors | 23 | 23 | $11 | |
94729 |
Test to examine how well the lungs exchange gases | 23 | 23 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 22 | 21 | $121 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 22 | 19 | $74 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 22 | 16 | $109 |
In context: peer comparison
Among 2 peers in Mishawaka Pulmonary Disease Physician, average services per provider: 90. This provider delivers 3.8× the peer median.Open Payments
Industry payments received
All-time total
$6,896
Transactions
74
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 7 | $5,332.01 | |
| AstraZeneca Pharmaceuticals Lp | 11 | $295.62 | |
| Grifols USA, LLC | 8 | $174.96 | |
| Genzyme Corporation | 7 | $158.36 | |
| United Therapeutics Corporation | 6 | $143.86 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 6 | $140.06 | |
| Mylan Specialty L.P. | 5 | $122.39 | |
| GlaxoSmithKline, LLC. | 7 | $101.59 | |
| Amgen INC. | 4 | $76.58 | |
| Genentech USA, INC. | 3 | $59.83 | |
| Philips North America LLC | 3 | $52.20 | |
| Inspire Medical Systems, INC. | 1 | $44.16 | |
| Merck Sharp & Dohme LLC | 2 | $34.73 | |
| Actelion Pharmaceuticals US, INC. | 2 | $28.61 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $26.83 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
218
Patients
65
Total drug cost
$65,863
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 73 | 26 | $2,046 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 35 | 17 | $27,984 |
| Prednisone | Generic | 29 | 22 | $184 |
| Montelukast Sodium | Generic | 21 | 0 | $279 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 19 | 0 | $7,957 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 17 | 0 | $9,715 |
| Spiriva Respimat (Tiotropium Bromide) | Brand | 13 | 0 | $10,045 |
| Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) | Brand | 11 | 0 | $7,653 |
Frequently asked questions
What is Dr. Donald Westerhausen's medical specialty?
Dr. Donald Westerhausen practices Pulmonary Disease Physician in Mishawaka, IN.
Where does Dr. Donald Westerhausen practice?
Dr. Donald Westerhausen practices at 611 E Douglas RD Ste 309, Mishawaka, IN 465451467. Office phone: 5743356900.
What is Dr. Donald Westerhausen's NPI?
Dr. Donald Westerhausen's National Provider Identifier (NPI) is 1437491974, issued by NPPES.
Does Dr. Donald Westerhausen accept Medicare assignment?
Yes. Dr. Donald Westerhausen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Donald Westerhausen commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); New patient office or other outpatient visit (HCPCS 99204); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.