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DR. YA JU CHANG MD
NPI 1801879119
Internal Medicine - Rheumatology in New York, NY

Active since November 22, 2005PECOS EnrolledAccepts Medicare Assignment
41 ELIZABETH STREET, SUITE 203, NEW YORK, NY 10013(212) 334-9591(212) 334-9598 Get Directions Write a Review

NPPES record last updated: April 15, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Ya Ju Chang Md NPPES

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

DR. YA JU CHANG MD (NPI 1801879119) is an individual rheumatology provider in New York, New York, licensed in New York (207546) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1991).

NPPES Registry Identity

NPI1801879119
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. YA JU CHANGCredential: MD
Location Address41 ELIZABETH STREET, SUITE 203New York, NY 10013-4637
Mailing Address41 Elizabeth Street, Suite 203New York, NY 10013-4637 · (212) 334-9591 · Fax (212) 334-9598
Phone(212) 334-9591
Fax(212) 334-9598
Sole ProprietorYes
Medical School CMSOtherGraduated 1991
Enumeration DateNovember 22, 2005
Last NPPES UpdateApril 15, 2025
NPPES CertifiedApril 15, 2025
✔ NPI 1801879119 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in NY · 207546
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 207546 (NY)
41 ELIZABETH STREET, New York, NY 10013
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Other Identifiers 1

Medicaid01946758NY

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

Dr. Ya Ju 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 ID3971417486
PECOS Enrollment IDI20031118000937
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 7

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
231 services123 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
228 services138 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
135 services94 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
104 services18 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
57 services21 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
42 services42 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10013 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.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GLOBAL MEDICAL ASSOCIATES, PLLC
Clinic/Center (Medical Specialty)
41 ELIZABETH STREET, SUITE 203
NEW YORK, NY 10013
New York County (212) 334-9591

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 Ya Ju Chang's NPI number?

The NPI number for Ya Ju Chang is 1801879119. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Ya Ju Chang located?

Ya Ju Chang practices at 41 Elizabeth Street Suite 203, New York, NY 10013. The listed phone number is (212) 334-9591.

What is Ya Ju Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Ya Ju Chang enrolled in Medicare?

Yes. Ya Ju 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.

When was this NPI record last updated?

The NPPES record for Ya Ju Chang was last updated on April 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.