1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Hospitalist
  6. NPI Profile

DR. AUGUSTUS CHANG MD
NPI 1427615558
Hospitalist in New York, NY

Active since May 23, 2019PECOS Enrolled
100/100
CMS Quality Rating
177 FORTH WASHINGTON AVENUE, MILSTEIN HOSPITAL, COLUMBIA UNIVERSITY MEDICAL CENTER, NEW YORK, NY 10032(212) 305-9379 Get Directions Write a Review

NPPES record last updated: July 14, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 14, 2022, May 23, 2019 (2 updates tracked since 2019).

About Dr. Augustus Chang Md NPPES

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

DR. AUGUSTUS CHANG MD (NPI 1427615558) is an individual hospitalist provider in New York, New York, licensed in New York (316411) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427615558
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. AUGUSTUS CHANGCredential: MD
Location Address177 FORTH WASHINGTON AVENUE, MILSTEIN HOSPITAL, COLUMBIA UNIVERSITY MEDICAL CENTERNew York, NY 10032
Mailing Address177 Fort Washington Ave, Milstein Hospital, Columbia University Medical CenterNew York, NY 10032 · (212) 305-9379
Phone(212) 305-9379
Sole ProprietorYes
Enumeration DateMay 23, 2019
Last NPPES UpdateJuly 14, 20222 updates tracked since enumeration
NPPES CertifiedJuly 14, 2022
✔ NPI 1427615558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in NY · 316411
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License LP04554 (RI), 316411-01 (NY)
177 FORTH WASHINGTON AVENUE, New York, NY 10032
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Augustus Chang Md 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.

Medicare Billing Reassignment

Medicare enrollment records show Augustus Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Trustees Of Columbia University In The City Of New York
0.2 mi
Anesthesiology
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • 3,922 clinicians in this Medicare group
NPI 1477068971 (212) 305-9876

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.
470 services90 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.
64 services57 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
16 services14 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.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10032 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.8
Promoting Interoperability100
Improvement Activities40

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.

Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
2 suppliers11 claims11 services$1.02 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Augustus Chang's NPI number?

The NPI number for Augustus Chang is 1427615558. It was assigned to this individual provider in the NPPES registry on May 23, 2019.

Where is Augustus Chang located?

Augustus Chang practices at 177 Forth Washington Avenue Milstein Hospital, Columbia University Medical Center, New York, NY 10032. The listed phone number is (212) 305-9379.

What is Augustus Chang's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Augustus Chang enrolled in Medicare?

Yes. Augustus Chang is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Augustus Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Augustus Chang reassigns Medicare benefits to Trustees Of Columbia University In The City Of New York (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Augustus Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Augustus Chang was last updated on July 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.