Doctor profile · Federal record

Dr. Shawn Marein, D.O.

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Student in an Organized Health Care Education/Training Program · Saint Joseph, MI

  • NPI 1265964878
  • Accepts Medicare
  • MIPS 93.8 / 100 · 2023
  • 9 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1234 Napier Ave
Saint Joseph, MI 490852112
(269) 982-5864
fax (269) 982-5113
Additional location
1215 E Michigan Ave
Lansing, MI 489121811
(517) 364-3530
Mailing address
1215 E Michigan Ave
Lansing, MI 489121811

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
August 4, 2023
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Michigan #5101027331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265964878. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
70
Distinct HCPCS
4
Medicare allowed
$2,973
HCPCS Description Services Patients Avg allowed
99204 New patient office or other outpatient visit, 45-59 minutes 20 20 $124
94060 Test to measure expiratory airflow and volume changes before and after medication administration 18 18 $10
94729 Test to examine how well the lungs exchange gases 17 17 $9
94726 Test to determine lung volumes using sensors 15 15 $11

In context: peer comparison

Among 3 peers in Saint Joseph Pulmonary Disease Physician, average services per provider: 47. This provider delivers 1.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$10,588
Transactions
18
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 14 $10,367.56
Actelion Pharmaceuticals US, INC. 3 $197.37
GlaxoSmithKline, LLC. 1 $23.00

By nature of payment

Education
$8,669
Travel and Lodging
$1,851
Food and Beverage
$68

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
115
Patients
15
Total drug cost
$38,776
Drug Type Claims Patients Total cost
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 20 15 $872
Symbicort (Budesonide/Formoterol Fumarate) Brand 19 0 $7,035
Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) Brand 16 0 $12,314
Montelukast Sodium Generic 14 0 $205
Breo Ellipta (Fluticasone/Vilanterol) Brand 12 0 $5,035
Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) Brand 12 0 $7,296
Levocetirizine Dihydrochloride Generic 11 0 $111
Spiriva Respimat (Tiotropium Bromide) Brand 11 0 $5,908

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Shawn Marein's medical specialty?
Dr. Shawn Marein practices Pulmonary Disease Physician in Saint Joseph, MI.
Where does Dr. Shawn Marein practice?
Dr. Shawn Marein practices at 1234 Napier Ave, Saint Joseph, MI 490852112. Office phone: 2699825864.
What is Dr. Shawn Marein's NPI?
Dr. Shawn Marein's National Provider Identifier (NPI) is 1265964878, issued by NPPES.
Does Dr. Shawn Marein accept Medicare assignment?
Yes. Dr. Shawn Marein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shawn Marein commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Test to measure expiratory airflow and volume changes before and after medication administration (HCPCS 94060); Test to examine how well the lungs exchange gases (HCPCS 94729). Source: CMS Medicare Physician & Other Practitioners file.