Dr John Chu-hong Chang, MD - Medicare Ophthalmology in Pearl River, NY

Dr John Chu-hong Chang, MD is a medicare enrolled "Ophthalmology" physician in Pearl River, New York. He went to Rutgers R W Johnson Medical School (cam/new Bruns/pisc) and graduated in 1998 and has 26 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Maria Spinak, Md, Pc, Maria Spinak, Md, Pc and his current practice location is 169 N Middletown Rd, Pearl River, New York. You can reach out to his office (for appointments etc.) via phone at (845) 735-5666.

Dr John Chu-hong Chang is licensed to practice in New York (license number 225687) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1073516027.

Contact Information

Dr John Chu-hong Chang, MD
169 N Middletown Rd,
Pearl River, NY 10965-2029
(845) 735-5666
(845) 735-5673

Map and Direction




Physician's Profile

Full NameDr John Chu-hong Chang
GenderMale
SpecialityOphthalmology
Experience26 Years
Location169 N Middletown Rd, Pearl River, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr John Chu-hong Chang attended and graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 1998
  NPI Data:
  • NPI Number: 1073516027
  • Provider Enumeration Date: 05/23/2005
  • Last Update Date: 04/05/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 2860436995
  • Enrollment ID: I20050620000184

Medical Identifiers

Medical identifiers for Dr John Chu-hong Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073516027NPI-NPPES
132998987OtherNYTAX ID
P00014839OtherNYPALMETTO GBA RAILROAD MEDICARE
02362274MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 225687 (New York)Primary
174400000XSpecialist 225687-1 (New York)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Nyack HospitalNyack, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Maria Spinak, Md, Pc83250827042
Maria Spinak, Md, Pc83250827042

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr John Chu-hong Chang allows following entities to bill medicare on his behalf.
Entity NameMaria Spinak, Md, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093786642
PECOS PAC ID: 8325082704
Enrollment ID: O20050616000366

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr John Chu-hong Chang is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr John Chu-hong Chang, MD
169 N Middletown Rd,
Pearl River, NY 10965-2029

Ph: (845) 735-5666
Dr John Chu-hong Chang, MD
169 N Middletown Rd,
Pearl River, NY 10965-2029

Ph: (845) 735-5666

Reviews and Comments


Ophthalmology Doctors in Pearl River, NY


Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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