Jack O Stewart, MD - Medicare Pulmonary Disease in Orange, CA

Jack O Stewart, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Orange, California. He went to Northwestern University Feinberg Medical School and graduated in 1979 and has 45 years of diverse experience with area of expertise as Pulmonary Disease. He is a member of the group practice Comprehensive Pulmonary And Primary Care Of Orange County and his current practice location is 1310 W Stewart Dr Ste 408, Orange, California. You can reach out to his office (for appointments etc.) via phone at (714) 639-9401.

Jack O Stewart is licensed to practice in California (license number G48397) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1942278452.

Contact Information

Jack O Stewart, MD
1310 W Stewart Dr Ste 408,
Orange, CA 92868-3855
(714) 639-9401
(714) 919-8807



Physician's Profile

Full NameJack O Stewart
GenderMale
SpecialityPulmonary Disease
Experience45 Years
Location1310 W Stewart Dr Ste 408, Orange, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Jack O Stewart attended and graduated from Northwestern University Feinberg Medical School in 1979
  NPI Data:
  • NPI Number: 1942278452
  • Provider Enumeration Date: 03/09/2006
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3072408145
  • Enrollment ID: I20080122000823

Medical Identifiers

Medical identifiers for Jack O Stewart such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942278452NPI-NPPES
1912919804OtherCANPI - TYPE 2
WG48397DOtherCAPTAN
1912919804OtherCAMEDI-CAL
CG5665OtherCARAIL ROAD MEDICARE - GROUP PTAN
290003382OtherCARAIL ROAD MEDICARE - PROVIDER PTAN
W1514OtherCAMEDICARE PTAN - TYPE 2

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease G48397 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph HospitalOrange, CAHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Jack O Stewart allows following entities to bill medicare on his behalf.
Entity NameComprehensive Pulmonary And Primary Care Of Orange County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326552969
PECOS PAC ID: 3577822238
Enrollment ID: O20180125002574

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Entity NameJack Stewart Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891202529
PECOS PAC ID: 6305106600
Enrollment ID: O20180206001339

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› Verified 8 days ago

Entity NameIntegrated Critical Care And Pulmonary Specialists Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902313919
PECOS PAC ID: 7113289539
Enrollment ID: O20180323001355

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› Verified 8 days ago

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Jack O Stewart is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Jack O Stewart, MD
1010 W La Veta Ave Ste 750,
Orange, CA 92868-4312

Ph: (714) 361-6600
Jack O Stewart, MD
1310 W Stewart Dr Ste 408,
Orange, CA 92868-3855

Ph: (714) 639-9401

News Archive

New device for accurately placing hemodialysis catheters on kidney patients

Researchers at Okayama University report in The Journal of Vascular Access a supporting device for accurately placing hemodialysis catheters on kidney patients. The device was successfully used on a group of 10 patients and is expected to become an essential tool in situations where other, catheter-free hemodialysis approaches are not possible.

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Researchers take a key step toward a new concept for brain-computer interface system

Brain-computer interfaces (BCIs) are emerging assistive devices that may one day help people with brain or spinal injuries to move or communicate.

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› Verified 8 days ago


Internal Medicine Doctors in Orange, CA

Michael Cheng, DO
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-7110    
Harry Nguyen, D.O.
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-7002    
Millie Arora,
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, City Tower, Suite 400, Orange, CA 92868
Phone: 714-456-5691    Fax: 714-456-8874
Dr. Sarah Jeanette Ettinger, M.D.
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-5135    
Dr. Antonio Halais Frangieh, MD, MPH
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-7890    
Dr. Andy Yen-tang Lee, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-456-7890    
Dr. Jesse John Goitia Jr., M.D.
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 101 The City Dr S, Orange, CA 92868
Phone: 714-880-7812    

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