CASSANDRA CHIAO
NPI 1366905077
Internal Medicine in Madison, WI

Q: What is Cassandra Chiao's NPI number?

The NPI number for Cassandra Chiao is 1366905077. It was assigned to this individual provider in the NPPES registry on April 9, 2019.

Q: What is Cassandra Chiao's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Cassandra Chiao was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since April 09, 2019PECOS EnrolledAccepts Medicare Assignment

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

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 11, 2025, May 3, 2021, Apr 9, 2019 (3 updates tracked since 2019).

On this page

About Cassandra Chiao NPPES

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

CASSANDRA CHIAO (NPI 1366905077) is an individual internal medicine provider in Madison, Wisconsin, licensed in Wisconsin (75050-20) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1366905077

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameCASSANDRA CHIAO

Location Address600 HIGHLAND AVEMadison, WI 53792-0001

Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531

Phone(608) 263-6400

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateApril 9, 2019

Last NPPES UpdateSeptember 11, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 11, 2025

✔ NPI 1366905077 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in WI · 75050-20

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

600 HIGHLAND AVE, Madison, WI 53792

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Quartz.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

Cassandra Chiao 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 ID6800120353

PECOS Enrollment IDI20250923002913

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.

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 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.

JASON ALAN CHRISTENSEN PHARMD

Pharmacist

600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792

Dane County (608) 662-0817

LAURA JEAN KOPPLIN MD, PHD

Ophthalmology