Doctor profile · Federal record

Dr. Di Yan, MD

Dermatology Physician (CMS: Dermatology) · Dermatopathology Physician · Madison, WI

  • NPI 1841795671
  • Accepts Medicare
  • MIPS 77.4 / 100 · 2023
  • 8 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
451 Junction RD
Madison, WI 537172656
(608) 265-7670
Additional location
925 Seneca St
Seattle, WA 981012742
(206) 583-6079
Mailing address
7974 Uw Health CT
Middleton, WI 535625531

Credentials & registration

NPPES · NUCC
NPI registered
March 2018 — 8 yrs on file
Profile last updated
October 24, 2023
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207N00000X — NUCC code
State license (1)
Wisconsin #82556

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841795671. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
469
Distinct HCPCS
5
Medicare allowed
$15,233
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 335 235 $35
88341 Special stained specimen slides to examine tissue, each additional procedure 48 21 $27
88342 Special stained specimen slides to examine tissue, initial procedure 37 28 $33
88312 Special stained specimen slides to identify organisms including interpretation and report 28 20 $25
88304 Pathology examination of tissue using a microscope, moderately low complexity 21 20 $10

In context: peer comparison

Among 20 peers in this city , average services per provider: 116. This provider delivers 4.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Di Yan's medical specialty?
Dr. Di Yan practices Dermatology Physician in Madison, WI.
Where does Dr. Di Yan practice?
Dr. Di Yan practices at 451 Junction RD, Madison, WI 537172656. Office phone: 6082657670.
What is Dr. Di Yan's NPI?
Dr. Di Yan's National Provider Identifier (NPI) is 1841795671, issued by NPPES.
Does Dr. Di Yan accept Medicare assignment?
Yes. Dr. Di Yan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Di Yan commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.