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DR. THOMAS JOHN RYAN MD
NPI 1104894443
Anesthesiology in Milwaukee, WI

Active since March 11, 2006PECOS EnrolledAccepts Medicare Assignment
945 N 12TH ST, MILWAUKEE, WI 53233(414) 219-6269 Get Directions Write a Review

NPPES record last updated: October 26, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 26, 2023, Feb 2, 2022, Dec 29, 2021 (3 updates tracked since 2021).

About Dr. Thomas John Ryan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS JOHN RYAN MD (NPI 1104894443) is an individual anesthesiology provider in Milwaukee, Wisconsin, licensed in Wisconsin (347100-020) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Gundersen Lutheran Medical Center, and is a graduate of Medical College Of Wisconsin (1980).

NPPES Registry Identity

NPI1104894443
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. THOMAS JOHN RYANCredential: MD
Location Address945 N 12TH STMilwaukee, WI 53233-1305
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (414) 219-6269 · Fax (414) 964-4977
Phone(414) 219-6269
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 1980
Enumeration DateMarch 11, 2006
Last NPPES UpdateOctober 26, 20233 updates tracked since enumeration
NPPES CertifiedOctober 26, 2023
✔ NPI 1104894443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in WI · 347100-020
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
945 N 12TH ST, Milwaukee, WI 53233
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Other Identifiers 1

Medicaid31940100WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare), Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas John Ryan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729985270
PECOS Enrollment IDI20090318000134
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520087
Location1910 South AveLa Crosse, WI 54601 · La Crosse County
Emergency services Birthing friendly

Aurora Medical Center

Acute Care Hospitals · Grafton, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520207
Location975 Port Washington RoadGrafton, WI 53024 · Ozaukee County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RANA MOHAMMED AL RUBAYE MD
Student in an Organized Health Care Education/Training Program
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-7427
RICHARD COMPTON KURTZ II MD
Family Medicine
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-0000
MS. ANN M YOCKEY APNP
Nurse Practitioner
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-5800
SARAH E KRAEMER PA-C
Physician Assistant
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-6777
DR. ALINA M WINANS MD
Emergency Medicine
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-2000
MS. MORANDA MARIA MEDINA-LOPEZ RN
Registered Nurse
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-2000
XENAYSHMA ZHAYLEENE GNAS-PACHECO
Registered Nurse (Registered Nurse First Assistant)
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 000-0000
PROGRESSIVE COMMUNITY HEALTH CENTERS, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
945 N 12TH ST, URGENT CARE
MILWAUKEE, WI 53233
Milwaukee County (414) 935-8000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Ryan's NPI number?

The NPI number for Thomas Ryan is 1104894443. It was assigned to this individual provider in the NPPES registry on March 11, 2006.

Where is Thomas Ryan located?

Thomas Ryan practices at 945 N 12th St, Milwaukee, WI 53233. The listed phone number is (414) 219-6269.

What is Thomas Ryan's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Thomas Ryan enrolled in Medicare?

Yes. Thomas Ryan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thomas Ryan accept?

Health plans from CareSource (Common Ground Healthcare) and Medica list Thomas Ryan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thomas Ryan affiliated with any hospitals?

According to CMS data, Thomas Ryan is affiliated with Gundersen Lutheran Medical Center and Aurora Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Ryan was last updated on October 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.