What is Katherine Quan's specialty?

Katherine Quan (NPI 1629051917) is a Medicare-billing provider whose primary specialty is Micrographic Dermatologic Surgery in Chandler, AZ.

Where does Katherine Quan practice?

Katherine Quan practices in Chandler, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1629051917.

How much does Medicare pay Katherine Quan?

Katherine Quan (NPI 1629051917) received approximately $191K in total Medicare Part B payments, serving 263 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1629051917

Katherine QuanM.D.

PRACTICEEAST VALLEY DERMATOLOGY CENTERSee all providers at this practice →

Micrographic Dermatologic SurgeryChandler, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

461

Unique beneficiaries

—

Total services

500

Distinct HCPCS

Medicare payment

$169K

Peer benchmark

Total Medicare services vs. 9 Micrographic Dermatologic Surgery providers in AZ — bottom quintile (cohort median 2,219).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$121

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Cephalexin32 claims

QUALITY · MIPS · 2024

Final MIPS score

87.5

Quality

88.2

Cost

74.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.53%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$240

Payment records

By payment type

Food and Beverage$240

Top paying entities

Food and Beverage$240

REFERRAL NETWORK

Where Katherine Quan's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Ameripath Tucson Inc Clinical Laboratory · Tucson, AZ	78	112
Rosemary Geary Dermatology · Chandler, AZ	34	49
Ryan Falsey Dermatology · Chandler, AZ	28	47
Catherine Chen-Tsai Dermatology · Gilbert, AZ	14	20

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events