Doctor profile · Federal record

Dr. Thomas Gravelyn, M.D.

Sleep Medicine (Internal Medicine) Physician (CMS: Pulmonary Disease) · Critical Care Medicine (Internal Medicine) Physician · Pulmonary Disease Physician · Ypsilanti, MI

  • NPI 1760442636
  • Accepts Medicare
  • 45 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5333 McAuley Dr, Suite 3111
Ypsilanti, MI 481971014
(734) 712-7688
fax (734) 712-7056
Mailing address
24 Frank Lloyd Wright Dr, Po Box 0446 Lobby J
Ann Arbor, MI 481059484

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
March 10, 2026
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207RS0012X — NUCC code
State licenses (2)
Michigan #4301044869 · Michigan #TG044869
Medicaid
MI #423968610

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1760442636. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
708
Distinct HCPCS
10
Medicare allowed
$73,556
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 161 155 $91
95811 Sleep study in sleep lab with continuous airway pressure (6 years or older) 141 139 $120
95810 Sleep study in sleep lab (6 years or older) 82 82 $117
G0399 Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation 81 81 $44
99214 Established patient office or other outpatient visit, 30-39 minutes 63 57 $128
99204 New patient office or other outpatient visit, 45-59 minutes 58 58 $165
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 31 23 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 26 25 $175
94729 Test to examine how well the lungs exchange gases 24 23 $57
94010 Test to measure expiratory airflow and volume 22 20 $26

In context: peer comparison

Among 2 peers in Ypsilanti Sleep Medicine (Internal Medicine) Physician, average services per provider: 57. This provider delivers 12× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
619
Patients
177
Total drug cost
$268,250
Drug Type Claims Patients Total cost
Prednisone Generic 94 58 $541
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 84 28 $6,264
Symbicort (Budesonide/Formoterol Fumarate) Brand 66 17 $44,948
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 59 13 $67,920
Spiriva Respimat (Tiotropium Bromide) Brand 47 13 $39,351
Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) Brand 44 13 $46,346
Ropinirole Hcl Generic 38 0 $693
Azithromycin Generic 32 11 $517
Fluticasone-Salmeterol (Fluticasone Propion/Salmeterol) Brand 28 0 $10,684
Zolpidem Tartrate Generic 24 24 $19

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Gravelyn's medical specialty?
Dr. Thomas Gravelyn practices Sleep Medicine (Internal Medicine) Physician in Ypsilanti, MI.
Where does Dr. Thomas Gravelyn practice?
Dr. Thomas Gravelyn practices at 5333 McAuley Dr, Ypsilanti, MI 481971014. Office phone: 7347127688.
What is Dr. Thomas Gravelyn's NPI?
Dr. Thomas Gravelyn's National Provider Identifier (NPI) is 1760442636, issued by NPPES.
Does Dr. Thomas Gravelyn accept Medicare assignment?
Yes. Dr. Thomas Gravelyn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Gravelyn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Sleep study in sleep lab with continuous airway pressure (6 years or older) (HCPCS 95811); Sleep study in sleep lab (6 years or older) (HCPCS 95810). Source: CMS Medicare Physician & Other Practitioners file.