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Garrett Thomas Mullvain

Anesthesiologist Assistant β€’ Madison, WI

Active NPI 1316747348 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

202 S Park St
Madison, WI 537151596

Call 6084176000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

202 S Park St

Madison, WI 537151596

Telephone 6084176000
Organization at the Same NPPES Address or Phone
Meriter Hospital, Inc. Facility NPI 1114920048

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Madison Anesthesiology Consultants, Llp. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2025

Years since graduation

1 years (graduated 2025)

CMS Doctors and Clinicians data list 2025 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2025

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Garrett Mullvain has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Compared with the same specialty in Madison and Wisconsin

76 active clinicians are listed under Anesthesiologist Assistant with a practice address in Madison, WI (266 in Wisconsin).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Madison

0% of these 76 clinicians have the CMS telehealth indicator.

89.5% of these 76 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-03-18
Anesthesiologist Assistant Primary Specialty

NUCC Taxonomy Code: 367H00000X

An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Wisconsin Department of Safety and Professional Services.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY ASSISTANT

Medicare Enrollment ID

I20250617002840

Enrollment State Jurisdiction

WI

PECOS Control ID

0941711899

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Madison Anesthesiology Consultants, Llp

202 S Park St, Madison, WI 537151507

Phone: 6084176000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

16 listed
Dr. Thomas Bugliosi , MD

Internal Medicine

NPI 1629055124

Doctor of Medicine (M.D.)

NPI 1568945509

Doctor of Nursing Practice

Gina Giazzoni , NP

Nurse Practitioner - Acute Care

NPI 1093152605

Nurse Practitioner

Dr. Paula Graf , MD

Internal Medicine

NPI 1891739199

Doctor of Medicine (M.D.)

Dr. Ahmed Hashim , MD

Internal Medicine

NPI 1710479217

Doctor of Medicine (M.D.)

NPI 1275113938

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated March 18, 2025.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from April 2025 to November 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1316747348
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 18, 2025
Last Update: March 18, 2025
Sole Proprietor: No

Other Anesthesiologist Assistants in Madison

All Anesthesiologist Assistants in Madison

Mailing Address

785 Mildenhall Dr

Sun Prairie, WI 535908203

Phone: 2183550121

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.