DR. ERIC I-YUN CHANG MD
NPI 1831352871
Surgery - Plastic and Reconstructive Surgery in Florham Park, NJ

NPI Status: Active since July 09, 2008

Contact Information

83 HANOVER RD STE 260
FLORHAM PARK, NJ
ZIP 07932
Phone: (732) 426-3420
Fax: (732) 747-2606

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  • Individual
  • Male
  • Years of Experience 24
  • Surgery
  • Plastic and Reconstructive Surgery
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ERIC CHANG

This page provides the complete NPI Profile along with additional information for Eric Chang, a provider established in Florham Park, New Jersey with a medical specialization in Surgery, focusing in plastic and reconstructive surgery and more than 24 years of experience. He graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 2002. The healthcare provider is registered in the NPI registry with number 1831352871 assigned on July 2008. The practitioner's primary taxonomy code is 2086S0122X with license number 25MA08436800 (NJ). The provider is registered as an individual and his NPI record was last updated May 2025.

NPI
1831352871
Provider Name
DR. ERIC I-YUN CHANG MD
Gender
Male
Entity Type
Individual
Location Address
83 HANOVER RD STE 260 FLORHAM PARK, NJ 07932
Location Phone
(732) 426-3420
Location Fax
(732) 747-2606
Mailing Address
200 SCHULZ DR STE 2 RED BANK, NJ 07701
Mailing Phone
(732) 741-0970
Mailing Fax
(732) 747-2606
Medical School Name
RUTGERS R W JOHNSON MEDICAL SCHOOL (CAM/NEW BRUNS/PISC)
Graduation Year
2002
Is Sole Proprietor?
No
Enumeration Date
07-09-2008
Last Update Date
05-16-2025
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Surgery Plastic and Reconstructive Surgery

Taxonomy Code
2086S0122X
Type
Allopathic & Osteopathic Physicians
License No.
25MA08436800
License State
NJ
Taxonomy Description
A surgeon who specializes in plastic and reconstructive surgery.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12086S0122XAllopathic & Osteopathic Physicians

Surgery
Plastic and Reconstructive Surgery

MD446804 (PA)

Medicare Participation & PECOS Enrollment Status

Eric Chang is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Eric Chang is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 3476721580

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20170815000638

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 26 times for 16 patients

Mastectomy

A mastectomy is a surgical procedure that involves the removal of all or part of the breast tissue. This is often done to treat or prevent conditions related to abnormal cell growth. There are different types, ranging from removing only the breast tissue to also removing nearby structures. The approach depends on individual health circumstances.

This service was performed for 35 patients

Melanoma (skin cancer) excision

Melanoma excision is a procedure where a surgeon removes melanoma, a type of skin cancer, and some surrounding healthy tissue. Local anesthesia is applied to numb the area. The goal is to completely remove the cancer and prevent its spread. Healing time varies.

This service was performed for 19 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 17 times for 17 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Eric Chang is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
MORRISTOWN MEDICAL CENTER100 MADISON AVE
MORRISTOWN, NJ 07960
(973) 971-5000Acute Care Hospitals
OVERLOOK MEDICAL CENTER99 BEAUVOIR AVENUE
SUMMIT, NJ 07901
(908) 522-2000Acute Care Hospitals

Reviews for DR. ERIC I-YUN CHANG MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1831352871
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2861654814
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 8 + 6 + 1 + 6 + 5 + 4 + 8 + 1 + 4 + 24 = 69
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 69 = 11

The NPI number 1831352871 is valid because the calculated check digit 1 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 5 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1528625613MVC CLINICAL PRACTICE - NJ PC
Organization
Surgery83 HANOVER RD STE 260
FLORHAM PARK, NJ 07932
(248) 855-5355
1972998631 HARIHARAN VENKATACHALAM IYER M.D.
Individual
Orthopaedic Surgery (Hand Surgery)83 HANOVER RD STE 260
FLORHAM PARK, NJ 07932
(732) 426-3420
1801693932 DIANNA JAROSZAK PA-C
Individual
Physician Assistant (Surgical)83 HANOVER RD STE 260
FLORHAM PARK, NJ 07932
(973) 520-5141
1467961060 JAMES J BAE PA-C, PTA
Individual
Physician Assistant (Surgical)83 HANOVER RD STE 260
FLORHAM PARK, NJ 07932
(732) 426-3420
1912428426 GABRIELLA ALEXA URSICK PA-C
Individual
Physician Assistant (Surgical)83 HANOVER RD STE 260
FLORHAM PARK, NJ 07932
(732) 426-3420

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1831352871, enumerated in the NPI registry as an "individual" on July 09, 2008

The provider is located at 83 Hanover Rd Ste 260 Florham Park, Nj 07932 and the phone number is (732) 426-3420

The provider's speciality is Surgery with taxonomy code 2086S0122X with a focus in Plastic and Reconstructive Surgery

The provider has more than 24 years of experience. He graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 2002.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The most common procedures or services performed by this practitioner are: Established patient office or other outpatient visit, 20-29 minutes, Mastectomy, Melanoma (skin cancer) excision and New patient office or other outpatient visit, 30-44 minutes.

The practitioner is affiliated to the following hospital(s): MORRISTOWN MEDICAL CENTER and OVERLOOK MEDICAL CENTER. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on July 09, 2008. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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