Doctor profile · Federal record

Dr. Jansi Willoughby, M.D.

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

  • NPI 1235577669
  • Accepts Medicare
  • 13 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
25689 Kelly RD Ste 100
Roseville, MI 480664993
(586) 445-5995
fax (877) 673-3562
Additional location
50505 Schoenherr RD Ste 290
Shelby Twp, MI 483153141
(586) 314-0080
Mailing address
50505 Schoenherr RD Ste 290
Shelby Twp, MI 483153141

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
March 11, 2025
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Michigan #4301116853

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235577669. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
642
Distinct HCPCS
10
Medicare allowed
$101,313
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 193 103 $123
99291 Critical care, first 30-74 minutes 167 68 $223
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 88 56 $82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 55 54 $179
99214 Established patient office or other outpatient visit, 30-39 minutes 40 34 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 25 23 $93
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 23 23 $135
99204 New patient office or other outpatient visit, 45-59 minutes 20 20 $158
99203 New patient office or other outpatient visit, 30-44 minutes 19 19 $116
95810 Sleep study in sleep lab (6 years or older) 12 12 $616

In context: peer comparison

Among 4 peers in this city , average services per provider: 122. This provider delivers 5.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$97
Transactions
5
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Actelion Pharmaceuticals US, Inc. 1 $22.87
Takeda Pharmaceuticals U.S.A., Inc. 1 $20.37
Resmed Corp 1 $20.07
HARMONY BIOSCIENCES LLC 1 $18.21
Novo Nordisk Inc 1 $15.80

By nature of payment

Food and Beverage
$97

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
28
Patients
0
Total drug cost
$927
Drug Type Claims Patients Total cost
Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) Brand 16 0 $511
Modafinil Generic 12 0 $416

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jansi Willoughby's medical specialty?
Dr. Jansi Willoughby practices Pulmonary Disease Physician in Roseville, MI.
Where does Dr. Jansi Willoughby practice?
Dr. Jansi Willoughby practices at 25689 Kelly RD Ste 100, Roseville, MI 480664993. Office phone: 5864455995.
What is Dr. Jansi Willoughby's NPI?
Dr. Jansi Willoughby's National Provider Identifier (NPI) is 1235577669, issued by NPPES.
Does Dr. Jansi Willoughby accept Medicare assignment?
Yes. Dr. Jansi Willoughby accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jansi Willoughby commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.