DR. JOHN V. CHANG D.O.
NPI 1679557326
Emergency Medicine in Lawrence, MA

Active since December 05, 2005PECOS EnrolledAccepts Medicare Assignment
34 HAVERHILL ST, LAWRENCE, MA 01841(978) 686-0090(978) 681-5963 Get Directions Write a Review

NPPES record last updated: September 25, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. John V. Chang D.o. NPPES

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

DR. JOHN V. CHANG D.O. (NPI 1679557326) is an individual emergency medicine provider in Lawrence, Massachusetts, licensed in Massachusetts (56184) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Lawrence General Hospital, and is a graduate of University Of New England, College Of Osteo Medicine (1984).

NPPES Registry Identity

NPI1679557326
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. JOHN V. CHANGCredential: D.O.
Location Address34 HAVERHILL STLawrence, MA 01841-2884
Mailing Address1 Castle DrWilmington, MA 01887-3188 · (978) 302-7300
Fax(978) 681-5963
Sole ProprietorNo
Medical School CMSUniversity Of New England, College Of Osteo MedicineGraduated 1984
Enumeration DateDecember 5, 2005
Last NPPES UpdateSeptember 25, 2020
NPPES CertifiedSeptember 25, 2020
NPI 1679557326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in MA · 56184
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 56184 (MA)
34 HAVERHILL ST, Lawrence, MA 01841

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. John V. Chang D.o. 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 ID6002863842
PECOS Enrollment IDI20060119000638
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

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

Lawrence General Hospital

Acute Care Hospitals · Lawrence, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220010
LocationOne General StreetLawrence, MA 01842 · Essex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01841 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

Family Medicine
34 HAVERHILL ST
LAWRENCE, MA 01841
Dietitian, Registered
34 HAVERHILL ST
LAWRENCE, MA 01841
Family Medicine
34 HAVERHILL ST
LAWRENCE, MA 01841
Family Medicine
34 HAVERHILL ST
LAWRENCE, MA 01841
Family Medicine
34 HAVERHILL ST
LAWRENCE, MA 01841
Registered Nurse
34 HAVERHILL ST
LAWRENCE, MA 01841
Nurse Practitioner (Family)
34 HAVERHILL ST
LAWRENCE, MA 01841
Registered Nurse
34 HAVERHILL ST
LAWRENCE, MA 01841

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 John Chang's NPI number?

The NPI number for John Chang is 1679557326. It was assigned to this individual provider in the NPPES registry on December 5, 2005.

Where is John Chang located?

John Chang practices at 34 Haverhill St, Lawrence, MA 01841. The listed phone number is (978) 686-0090.

What is John Chang's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is John Chang enrolled in Medicare?

Yes. John 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.

Is John Chang affiliated with any hospitals?

According to CMS data, John Chang is affiliated with Lawrence General Hospital.

When was this NPI record last updated?

The NPPES record for John Chang was last updated on September 25, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.