MATTHEW JAMES MERWIN
NPI 1801680517
Internal Medicine in Madison, WI

Q: What is the provider's specialty?

The provider's specialty is Internal Medicine with taxonomy code 207R00000X.

Active since April 07, 2025PECOS Enrolled

UW HOSPITALS AND CLINICS 600 HIGHLAND AVE, MADISON, WI 53792(608) 263-6400 Get Directions Write a Review

NPPES record last updated: June 30, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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About Matthew James Merwin NPPES

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

MATTHEW JAMES MERWIN (NPI 1801680517) is an individual internal medicine provider in Madison, Wisconsin, licensed in Wisconsin (101677-851) and active in the NPI registry since April 2025. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801680517

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameMATTHEW JAMES MERWIN

Location AddressUW HOSPITALS AND CLINICS 600 HIGHLAND AVEMadison, WI 53792-0001

Mailing AddressUw Hospitals And Clinics 600 Highland AveMadison, WI 53792-0001

Phone(608) 263-6400

Sole ProprietorNo

Enumeration DateApril 7, 2025

Last NPPES UpdateJune 30, 2025

NPPES CertifiedJune 8, 2025

✔ NPI 1801680517 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in WI · 101677-851

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.

UW HOSPITALS AND CLINICS 600 HIGHLAND AVE, Madison, WI 53792

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Matthew James Merwin is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53792 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.

DR. THOMAS ANTHONY GALLAGHER M.D.

Radiology (Diagnostic Radiology)

UW HOSPITALS AND CLINICS 600 HIGHLAND AVE, DEPARTMENT OF RADIOLOGY
MADISON, WI 53792

Dane County (608) 263-9179

MICHAEL CHRISTOPHER M.D.

Dermatology