THOMAS WESTFALL MD
NPI 1558388355
Internal Medicine in Madison, WI

Active since July 16, 2006PECOS EnrolledAccepts Medicare Assignment
202 S PARK ST, MADISON, WI 53715(608) 417-5659(608) 417-5890 Get Directions Write a Review

NPPES record last updated: June 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Thomas Westfall Md NPPES

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

THOMAS WESTFALL MD (NPI 1558388355) is an individual internal medicine provider in Madison, Wisconsin, licensed in Wisconsin (54671-20) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of University Of Wisconsin School Of Medicine (2003).

NPPES Registry Identity

NPI1558388355
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTHOMAS WESTFALLCredential: MD
Location Address202 S PARK STMadison, WI 53715-1507
Mailing Address202 S Park StMadison, WI 53715-1507 · (608) 417-6000 · Fax (608) 417-3878
Fax(608) 417-5890
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2003
Enumeration DateJuly 16, 2006
Last NPPES UpdateJune 13, 2026
NPPES CertifiedJune 13, 2026
NPI 1558388355 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in WI · 54671-20 Licensed in IL · 036-115763
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedHospitalistTaxonomy 208M00000X · License 54671-20 (WI)
202 S PARK ST, Madison, WI 53715

Accepted 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

Thomas Westfall 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 ID6901802040
PECOS Enrollment IDI20101115000783
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
25 services25 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
18 services18 patients

Hospital Affiliations CMS Care Compare 2

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

Unitypoint Health - Meriter

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520089
Location202 S Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53715 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner
202 S PARK ST
MADISON, WI 53715
Nurse Practitioner (Neonatal, Critical Care)
202 S PARK ST
MADISON, WI 53715
Registered Nurse
202 S PARK ST
MADISON, WI 53715
Nurse Practitioner (Neonatal, Critical Care)
202 S PARK ST
MADISON, WI 53715
Physician Assistant (Medical)
202 S PARK ST, MERITER ATRIUM
MADISON, WI 53715
Anesthesiology
202 S PARK ST, 4 TOWER
MADISON, WI 53715
Physical Therapist
202 S PARK ST
MADISON, WI 53715
Internal Medicine (Critical Care Medicine)
202 S PARK ST
MADISON, WI 53715

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 Westfall's NPI number?

The NPI number for Thomas Westfall is 1558388355. It was assigned to this individual provider in the NPPES registry on July 16, 2006.

Where is Thomas Westfall located?

Thomas Westfall practices at 202 S Park St, Madison, WI 53715. The listed phone number is (608) 417-5659.

What is Thomas Westfall's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Thomas Westfall enrolled in Medicare?

Yes. Thomas Westfall 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 Westfall accept?

Health plans from Group Health Cooperative-SCW list Thomas Westfall 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 Westfall affiliated with any hospitals?

According to CMS data, Thomas Westfall is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Thomas Westfall was last updated on June 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.