William N Segal, MD - Medicare Gastroenterology in Princeton, NJ

William N Segal, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Princeton, New Jersey. He graduated from medical school in 1990 and has 34 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Clinical Health Care Associates Of New Jersey Pc and his current practice location is 731 Alexander Rd, Suite 100, Princeton, New Jersey. You can reach out to his office (for appointments etc.) via phone at (609) 924-1422.

William N Segal is licensed to practice in New Jersey (license number 25MA06364000) 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 1881694974.

Contact Information

William N Segal, MD
731 Alexander Rd, Suite 100,
Princeton, NJ 08540-6345
(609) 924-1422
(609) 924-7473

Map and Direction




Physician's Profile

Full NameWilliam N Segal
GenderMale
SpecialityGastroenterology
Experience34 Years
Location731 Alexander Rd, Princeton, New Jersey
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:
  • William N Segal graduated from medical school in 1990
  NPI Data:
  • NPI Number: 1881694974
  • Provider Enumeration Date: 07/29/2005
  • Last Update Date: 12/11/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 0345260238
  • Enrollment ID: I20100809000559

Medical Identifiers

Medical identifiers for William N Segal such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1881694974NPI-NPPES
0821011000OtherKEYSTONE
P399224OtherOXFORD
000795866OtherPERSONAL CHOICE
100010067OtherRAILROAD MEDICARE
1492643004OtherCIGNA
00795866OtherINDEPENDENCE BLUE CROSS
000865670OtherAMERIHEALTH PERS. CHOICE
7517106MedicaidNJ
0981974000OtherAMERIHEALTH HMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 25MA06364000 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Medical Center Of Princeton At PlainsboroPlainsboro, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Clinical Health Care Associates Of New Jersey Pc0749180198664

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. William N Segal allows following entities to bill medicare on his behalf.
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 Gastroenterology Assoc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396746962
PECOS PAC ID: 9537165535
Enrollment ID: O20061016000190
Entity NamePrinceton Healthcare Affiliated Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518194323
PECOS PAC ID: 2567598022
Enrollment ID: O20100413000141

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. William N Segal 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
William N Segal, MD
731 Alexander Rd, Suite 100,
Princeton, NJ 08540-6345

Ph: (609) 924-1422
William N Segal, MD
731 Alexander Rd, Suite 100,
Princeton, NJ 08540-6345

Ph: (609) 924-1422

Reviews and Comments


Internal Medicine Doctors in Princeton, NJ

Dr. Subhashis Banerjee, M.D.
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Mrs. Ewa Ruel, M.D.
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Dr. Benny Soffer, MD
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Phone: 609-876-0067    
Dr. Laura Hildebrant, D.O.
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Practice Location: 727 State Rd, Suite 1, Princeton, NJ 08540
Phone: 609-921-6410    Fax: 609-921-0406
Dr. Andrew Costin, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 419 N Harrison St, Princeton, NJ 08540
Phone: 609-924-9300    Fax: 609-430-9481

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.