Dr Thomas John Ryan, MD - Medicare Anesthesiology in Milwaukee, WI

Dr Thomas John Ryan, MD is a medicare enrolled "Anesthesiology" physician in Milwaukee, Wisconsin. He went to Medical College Of Wisconsin and graduated in 1980 and has 44 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Gundersen Lutheran Medical Center Inc, Aurora Medical Group, Inc. and his current practice location is 945 N 12th St, Milwaukee, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (414) 219-6269.

Dr Thomas John Ryan is licensed to practice in Wisconsin (license number 347100-020) 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 1104894443.

Contact Information

Dr Thomas John Ryan, MD
945 N 12th St,
Milwaukee, WI 53233-1305
(414) 219-6269
Not Available

Map and Direction




Physician's Profile

Full NameDr Thomas John Ryan
GenderMale
SpecialityAnesthesiology
Experience44 Years
Location945 N 12th St, Milwaukee, Wisconsin
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:
  • Dr Thomas John Ryan attended and graduated from Medical College Of Wisconsin in 1980
  NPI Data:
  • NPI Number: 1104894443
  • Provider Enumeration Date: 03/11/2006
  • Last Update Date: 10/26/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8729985270
  • Enrollment ID: I20090318000134

Medical Identifiers

Medical identifiers for Dr Thomas John Ryan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104894443NPI-NPPES
31940100MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 347100-020 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gundersen Lutheran Medical CenterLa crosse, WIHospital
Aurora Medical Center - GraftonGrafton, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gundersen Lutheran Medical Center Inc2163331414789
Aurora Medical Group, Inc.67097942583269

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. Dr Thomas John Ryan allows following entities to bill medicare on his behalf.
Entity NameAscension Medical Group-southeast Wisconsin Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609881077
PECOS PAC ID: 8628980943
Enrollment ID: O20031104000421
Entity NameAurora Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427271378
PECOS PAC ID: 6709794258
Enrollment ID: O20031105000725
Entity NameGundersen Lutheran Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376593442
PECOS PAC ID: 2163331414
Enrollment ID: O20130619000254
Entity NameAscension Medical Group-southeast Wisconsin Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194473066
PECOS PAC ID: 8628980943
Enrollment ID: O20220620000485

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. Dr Thomas John Ryan 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
Dr Thomas John Ryan, MD
Po Box 735044,
Chicago, IL 60673-5044

Ph: (414) 219-6269
Dr Thomas John Ryan, MD
945 N 12th St,
Milwaukee, WI 53233-1305

Ph: (414) 219-6269

Reviews and Comments


Anesthesiology Doctors in Milwaukee, WI

Dr. Jeffrey T Lyvers, M.D.
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Dr. Quinn Hogan, MD
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Dr. Stephen R Thompson, M.D.
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Phone: 414-961-3300    
Dr. Christina D Diaz, M.D.
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Phone: 414-805-8700    Fax: 414-259-1522
Dr. John V Selthafner, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 9200 W Wisconsin Ave, Milwaukee, WI 53226
Phone: 414-805-8700    Fax: 414-259-1522
Anne M Fagan, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 10200 W Innovation Dr, Milwaukee, WI 53226
Phone: 414-302-9196    

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).

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