Doctor profile · Federal record

Dr. Jack Stewart, M.D.

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Orange, CA

  • NPI 1942278452
  • Accepts Medicare
  • MIPS 80.4 / 100 · 2023
  • 47 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1310 W Stewart Dr Ste 408
Orange, CA 928683855
(714) 639-9401
fax (714) 919-8807
Mailing address
1010 W la Veta Ave Ste 750
Orange, CA 928684312

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
July 21, 2022
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
California #G48397

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942278452. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,813
Distinct HCPCS
9
Medicare allowed
$174,027
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 426 248 $141
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 402 72 $52
99213 Established patient office or other outpatient visit, 20-29 minutes 309 223 $100
94010 Test to measure expiratory airflow and volume 232 182 $31
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 175 84 $83
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 105 85 $137
99204 New patient office or other outpatient visit, 45-59 minutes 94 94 $181
99203 New patient office or other outpatient visit, 30-44 minutes 47 47 $124
31645 Aspiration of initial secretion of lung airway using an endoscope 23 18 $152

In context: peer comparison

Among 6 peers in Orange Pulmonary Disease Physician, average services per provider: 95. This provider delivers 19× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,011
Transactions
102
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 17 $445.40
AstraZeneca Pharmaceuticals Lp 14 $430.96
Boehringer Ingelheim Pharmaceuticals, INC. 16 $399.98
Genzyme Corporation 6 $252.50
Merck Sharp & Dohme LLC 5 $232.04
Insmed, INC. 9 $209.18
Lilly USA, LLC 5 $127.85
Mylan Specialty L.P. 5 $98.15
Electromed, INC. 3 $95.68
Regeneron Healthcare Solutions, INC. 3 $87.28
Novo Nordisk INC 5 $87.25
Amgen INC. 4 $81.15
Takeda Pharmaceuticals U.S.A., INC. 3 $72.96
Vifor Pharma, INC. 4 $72.61
Pfizer INC. 3 $59.20

By nature of payment

Food and Beverage
$3,011

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,355
Patients
910
Total drug cost
$1,498,445
Drug Type Claims Patients Total cost
Prednisone Generic 524 237 $3,347
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 404 111 $416,742
Montelukast Sodium Generic 267 93 $5,283
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 220 65 $8,336
Breo Ellipta (Fluticasone/Vilanterol) Brand 141 43 $100,149
Levofloxacin Generic 115 73 $933
Azithromycin Generic 103 51 $1,265
Furosemide Generic 100 36 $469
Doxycycline Hyclate Generic 94 71 $1,315
Eliquis (Apixaban) Brand 77 15 $59,917

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jack Stewart's medical specialty?
Dr. Jack Stewart practices Pulmonary Disease Physician in Orange, CA.
Where does Dr. Jack Stewart practice?
Dr. Jack Stewart practices at 1310 W Stewart Dr Ste 408, Orange, CA 928683855. Office phone: 7146399401.
What is Dr. Jack Stewart's NPI?
Dr. Jack Stewart's National Provider Identifier (NPI) is 1942278452, issued by NPPES.
Does Dr. Jack Stewart accept Medicare assignment?
Yes. Dr. Jack Stewart accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jack Stewart commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.