Dr Isao Iwata, MD - Medicare Internal Medicine in Plainsboro, NJ

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Dr Isao Iwata, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Plainsboro, New Jersey. His current practice location is 5 Plainsboro Rd Ste 300, Plainsboro, New Jersey. You can reach out to his office (for appointments etc.) via phone at (609) 853-7272.

Dr Isao Iwata is licensed to practice in New Jersey (license number 25MA09972900) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1295921773.

Contact Information

Dr Isao Iwata, MD
5 Plainsboro Rd Ste 300,
Plainsboro, NJ 08536-1915
(609) 853-7272
(609) 853-7271

Map and Direction




Physician's Profile

Full NameDr Isao Iwata
GenderMale
SpecialityInternal Medicine - Geriatric Medicine
Location5 Plainsboro Rd Ste 300, Plainsboro, New Jersey
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1295921773
  • Provider Enumeration Date: 09/19/2007
  • Last Update Date: 09/30/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0547419749
  • Enrollment ID: I20170111000108

Medical Identifiers

Medical identifiers for Dr Isao Iwata such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295921773NPI-NPPES
25MA09972900OtherNJNJ LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 25MA09972900 (New Jersey)Primary

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 Isao Iwata allows following entities to bill medicare on his behalf.
Entity NameHackensack Meridian Health Medical Group - Specialty Care Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215989249
PECOS PAC ID: 9133032519
Enrollment ID: O20031111000524
Entity NameRutgers Health Rwj Department Of Medicine Gen Internal
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992887012
PECOS PAC ID: 5799688313
Enrollment ID: O20040130000648
Entity NameClinical Health Care Associates Of New Jersey Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447260435
PECOS PAC ID: 0749180198
Enrollment ID: O20040421001473
Entity NamePrinceton Healthcare Affiliated Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518194323
PECOS PAC ID: 2567598022
Enrollment ID: O20100413000141
Entity NamePrinceton Healthcare Provider Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699141507
PECOS PAC ID: 3173824695
Enrollment ID: O20151228002256

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 Isao Iwata 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 Isao Iwata, MD
5 Plainsboro Rd Ste 300,
Plainsboro, NJ 08536-1915

Ph: (609) 853-7272		Dr Isao Iwata, MD
5 Plainsboro Rd Ste 300,
Plainsboro, NJ 08536-1915

Ph: (609) 853-7272

Reviews and Comments


Internal Medicine Doctors in Plainsboro, NJ

Catherine Chen, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Plainsboro Rd, Plainsboro, NJ 08536
Phone: 609-853-6049    Fax: 609-853-7221
Arjun Fung-janardhan,
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Plainsboro Rd, Plainsboro, NJ 08536
Phone: 609-853-6049    
Mrs. Silky Sharma, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Plainsboro Rd, Plainsboro, NJ 08536
Phone: 609-853-5600    
Dr. Ahmed Mirza, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 666 Plainsboro Rd, Suite 1318, Plainsboro, NJ 08536
Phone: 732-266-3733    
Dr. Lloyd Antoine Webster Jr., M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Plainsboro Rd, Plainsboro, NJ 08536
Phone: 609-853-6049    Fax: 609-853-7221
Dr. Ramy Sedhom, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5 Plainsboro Rd Ste 540, Plainsboro, NJ 08536
Phone: 609-853-6590    Fax: 609-853-6581
Dr. Matthew Sandel, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5 Plainsboro Rd Ste 350, Plainsboro, NJ 08536
Phone: 609-853-6049    Fax: 609-853-7221

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.