James Ryan Stewart, DO - Medicare Obstetrics & Gynecology in Green Bay, WI

James Ryan Stewart, DO is a medicare enrolled "Obstetrics & Gynecology - Female Pelvic Medicine And Reconstructive Surgery" physician in Green Bay, Wisconsin. His current practice location is 2845 Greenbrier Rd, Green Bay, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 288-8000.

James Ryan Stewart is licensed to practice in Wisconsin (license number 81734) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1922366061.

Contact Information

James Ryan Stewart, DO
2845 Greenbrier Rd,
Green Bay, WI 54311-6519
(920) 288-8000
Not Available

Map and Direction




Physician's Profile

Full NameJames Ryan Stewart
GenderMale
SpecialityObstetrics & Gynecology - Female Pelvic Medicine And Reconstructive Surgery
Location2845 Greenbrier Rd, Green Bay, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1922366061
  • Provider Enumeration Date: 04/26/2012
  • Last Update Date: 01/21/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2769621002
  • Enrollment ID: I20190924003313

Medical Identifiers

Medical identifiers for James Ryan Stewart such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922366061NPI-NPPES
100294655MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VF0040XObstetrics & Gynecology - Female Pelvic Medicine And Reconstructive Surgery 81734 (Wisconsin)Primary
207V00000XObstetrics & Gynecology 02005799A (Indiana)Secondary
207VF0040XObstetrics & Gynecology - Female Pelvic Medicine And Reconstructive Surgery 03938 (Kentucky)Secondary
390200000XStudent In An Organized Health Care Education/training Program 03938 (Kentucky)Secondary

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. James Ryan Stewart allows following entities to bill medicare on his behalf.
Entity NameHealthnet Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780634964
PECOS PAC ID: 7214840933
Enrollment ID: O20031110000227
Entity NameCommunity Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437382074
PECOS PAC ID: 7012811284
Enrollment ID: O20040309000452
Entity NameUniversity Obstetricians-gynecologists,inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235177924
PECOS PAC ID: 5092796466
Enrollment ID: O20040601000544

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. James Ryan 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
James Ryan Stewart, DO
Po Box 735044,
Chicago, IL 60673-5044

Ph: (800) 326-2250
James Ryan Stewart, DO
2845 Greenbrier Rd,
Green Bay, WI 54311-6519

Ph: (920) 288-8000

Reviews and Comments


Obstetrics & Gynecology Doctors in Green Bay, WI

Edward G Vogel, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2641 Development Dr, Green Bay, WI 54311
Phone: 920-338-6868    Fax: 920-338-6869
Dr. Michael J Brockman, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2845 Greenbrier Rd, #420, Green Bay, WI 54308
Phone: 920-288-8400    Fax: 920-288-8461
Dr. John Cornelius Gallagher, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2845 Greenbrier Rd, #480, Green Bay, WI 54308
Phone: 920-288-8400    Fax: 920-288-8463
Michael C O'toole, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 2641 Development Drive, Green Bay, WI 54311
Phone: 920-338-6868    Fax: 920-338-6869
Anna Maria Guanzon, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2845 Greenbrier Rd, Green Bay, WI 54311
Phone: 920-288-8000    
Megan E Temp, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 2641 Development Dr, Green Bay, WI 54311
Phone: 920-338-6868    Fax: 920-338-6869
Rebecca Caroline Pierson, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2845 Greenbrier Rd, Green Bay, WI 54311
Phone: 920-288-8000    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.