KO-YUN CHANG MD, MPH
NPI 1922956390
Internal Medicine - Pulmonary Disease in Jacksonville, FL

Q: What is Ko-yun Chang's NPI number?

The NPI number for Ko-yun Chang is 1922956390. It was assigned to this individual provider in the NPPES registry on March 20, 2026.

Q: What is Ko-yun Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Ko-yun Chang was last updated on March 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 March 20, 2026PECOS Enrolled

655 W 8TH ST, JACKSONVILLE, FL 32209(904) 244-4075 Get Directions Write a Review

NPPES record last updated: March 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Ko-yun Chang Md, Mph NPPES

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

KO-YUN CHANG MD, MPH (NPI 1922956390) is an individual pulmonary disease provider in Jacksonville, Florida, licensed in Florida (1946) and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1922956390

Entity TypeIndividualFemale

Primary Taxonomy207RP1001X

Provider Legal NameKO-YUN CHANGCredential: MD, MPH

Location Address655 W 8TH STJacksonville, FL 32209-6511

Mailing AddressPo Box 44008Jacksonville, FL 32231-4008 · (904) 244-4075

Phone(904) 244-4075

Sole ProprietorNo

Medical School CMSOtherGraduated 2012

Enumeration DateMarch 20, 2026

NPPES CertifiedMarch 20, 2026

✔ NPI 1922956390 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in FL · 1946

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

655 W 8TH ST, Jacksonville, FL 32209

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ko-yun Chang Md, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2264908870

PECOS Enrollment IDI20260420002802

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32209 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

$130.04 typical visit price

range $56.00 – $171.84

Typical copayment $32.51 (range $14.00 – $42.96)

Most-billed visit code 99204

Established Patient

$99.16 typical visit price

range $17.57 – $139.16

Typical copayment $24.79 (range $4.39 – $34.79)

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.

DR. MATTHEW DUWAIN WARRICK M.D.

Anesthesiology