1. Home
  2. Directory
  3. Wisconsin
  4. Madison
  5. Family Medicine
  6. NPI Profile

JUSTIN THEODORE CHANG MD
NPI 1841729910
Family Medicine in Madison, WI

Active since June 12, 2017PECOS EnrolledAccepts Medicare Assignment
202 S PARK ST, MADISON, WI 53715(608) 417-5695(608) 417-5890 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 23, 2026, Aug 10, 2020, Dec 26, 2017 and 1 more (4 updates tracked since 2017).

About Justin Theodore Chang Md NPPES

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

JUSTIN THEODORE CHANG MD (NPI 1841729910) is an individual family medicine provider in Madison, Wisconsin, licensed in Wisconsin (84868) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with St Peter's Hospital, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2017).

NPPES Registry Identity

NPI1841729910
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameJUSTIN THEODORE CHANGCredential: MD
Location Address202 S PARK STMadison, WI 53715-1507
Mailing Address202 S Park StMadison, WI 53715-1507 · (608) 417-6000 · Fax (608) 417-3878
Phone(608) 417-5695
Fax(608) 417-5890
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2017
Enumeration DateJune 12, 2017
Last NPPES UpdateApril 23, 20264 updates tracked since enumeration
NPPES CertifiedApril 23, 2026
✔ NPI 1841729910 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in WI · 84868✔ Licensed in MO · 2017018876✔ Licensed in IA · 47374
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
202 S PARK ST, Madison, WI 53715
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Group Health Cooperative-SCW, Medica.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

Justin Theodore Chang Md 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 ID1153690169
PECOS Enrollment IDI20240923001096
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.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
215 services114 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
183 services100 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
136 services133 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
73 services72 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
40 services15 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
38 services22 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Peter's Hospital

Acute Care Hospitals · Albany, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330057
Location315 South Manning BoulevardAlbany, NY 12208 · Albany County
Emergency services Birthing friendly

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 53715 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier13 claims13 services$63.21 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ASHLEY N BERKA NURSE PRACTITIONER
Nurse Practitioner
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6667
BROOK INGEBRIGTSON APNP
Nurse Practitioner (Neonatal, Critical Care)
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6236
PAUL LADWIG RN
Registered Nurse
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6000
DIXITA KAPPELL NP
Nurse Practitioner (Neonatal, Critical Care)
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6236
SUSAN R WILHELM PA-C
Physician Assistant (Medical)
202 S PARK ST, MERITER ATRIUM
MADISON, WI 53715
Dane County (608) 417-5970
PETER GERARD PRYDE MD
Anesthesiology
202 S PARK ST, 4 TOWER
MADISON, WI 53715
Dane County (608) 267-6676
SUSAN MENG PT
Physical Therapist
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-6000
BRIAN DAVID GRIFFITH M.D.
Internal Medicine (Critical Care Medicine)
202 S PARK ST
MADISON, WI 53715
Dane County (608) 417-5950

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 Justin Chang's NPI number?

The NPI number for Justin Chang is 1841729910. It was assigned to this individual provider in the NPPES registry on June 12, 2017.

Where is Justin Chang located?

Justin Chang practices at 202 S Park St, Madison, WI 53715. The listed phone number is (608) 417-5695.

What is Justin Chang's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Justin Chang enrolled in Medicare?

Yes. Justin Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Justin Chang accept?

Health plans from Group Health Cooperative-SCW and Medica list Justin Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Justin Chang affiliated with any hospitals?

According to CMS data, Justin Chang is affiliated with St Peter's Hospital, Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Justin Chang was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.