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MATTHEW JAMES MERWIN
NPI 1801680517
Internal Medicine in Madison, WI

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: August 16, 2026.

Record update history: Jun 30, 2025, Apr 7, 2025 (2 updates tracked since 2025).

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, 20252 updates tracked since enumeration
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.

MICHAEL BERGQUIST
Radiology (Diagnostic Radiology)
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
CARINE RENNER MD
Pediatrics
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
DR. SCOTT ALAN BLAINE DO
Anesthesiology
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
TREY MORGAN DO
Internal Medicine (Geriatric Medicine)
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
DR. THOMAS DIEHL MD
Surgery
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
MADHURI VSN NISHTALA MD
Surgery
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
MEGAN SUZANNE BERRY DO
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400
NYLE LARSON MD
Anesthesiology
UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6400

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 Matthew Merwin's NPI number?

The NPI number for Matthew Merwin is 1801680517. It was assigned to this individual provider in the NPPES registry on April 7, 2025.

Where is Matthew Merwin located?

Matthew Merwin practices at Uw Hospitals And Clinics 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-6400.

What is Matthew Merwin's specialty?

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

Is Matthew Merwin enrolled in Medicare?

Yes. Matthew Merwin is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Matthew Merwin was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.