Estelle Williams, MD - Medicare Emergency Medicine in Berkeley Heights, NJ

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Estelle Williams, MD is a medicare enrolled "Emergency Medicine" physician in Berkeley Heights, New Jersey. She went to Rutgers R W Johnson Medical School (cam/new Bruns/pisc) and graduated in 1999 and has 26 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Summit Medical Group Pa and her current practice location is 1 Diamond Hill Rd, Berkeley Heights, New Jersey. You can reach out to her office (for appointments etc.) via phone at (908) 277-8880.

Estelle Williams is licensed to practice in New Jersey (license number 25MA07460900) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1336168004.

Contact Information

Estelle Williams, MD
1 Diamond Hill Rd,
Berkeley Heights, NJ 07922-2104
(908) 277-8880
(908) 277-8796

Map and Direction




Physician's Profile

Full NameEstelle Williams
GenderFemale
SpecialityEmergency Medicine
Experience26 Years
Location1 Diamond Hill Rd, Berkeley Heights, New Jersey
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Estelle Williams attended and graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 1999
  NPI Data:
  • NPI Number: 1336168004
  • Provider Enumeration Date: 07/19/2006
  • Last Update Date: 07/09/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 0648265314
  • Enrollment ID: I20040420001050

Medical Identifiers

Medical identifiers for Estelle Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336168004NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 221850-1 (New York)Secondary
207P00000XEmergency Medicine 25MA07460900 (New Jersey)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Summit Medical Group Pa53956422761147

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. Estelle Williams allows following entities to bill medicare on her behalf.
Entity NameSummit Medical Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942254347
PECOS PAC ID: 5395642276
Enrollment ID: O20031218000011
Entity NameEmergency Physician Associates Of North Jersey P C
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497783419
PECOS PAC ID: 7911992326
Enrollment ID: O20040825001558
Entity NameEmergency Physicians Of Englewood, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891046264
PECOS PAC ID: 9335384437
Enrollment ID: O20130320000360

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. Estelle Williams 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
Estelle Williams, MD
Po Box 837,
Livingston, NJ 07039-0837

Ph: (973) 740-0607		Estelle Williams, MD
1 Diamond Hill Rd,
Berkeley Heights, NJ 07922-2104

Ph: (908) 277-8880

Reviews and Comments


Emergency Medicine Doctors in Berkeley Heights, NJ

Miss Eliezer Aurelina Mordan, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Diamond Hill Rd Fl 1, Berkeley Heights, NJ 07922
Phone: 908-277-8880    Fax: 908-277-8796
Dr. Michael David Passafaro, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Diamond Hill Rd, Berkeley Heights, NJ 07922
Phone: 908-277-8880    Fax: 908-277-8796
John S. Koliopoulos, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Diamond Hill Rd, Berkeley Heights, NJ 07922
Phone: 908-277-8880    Fax: 908-277-8796
Antonios Drivas, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Diamond Hill Rd, Berkeley Heights, NJ 07922
Phone: 908-277-8880    
Huong Nguyen, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Diamond Hill Rd, Berkeley Heights, NJ 07922
Phone: 908-988-4023    
Paul Michael Girardi, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Diamond Hill Rd, Berkeley Heights, NJ 07922
Phone: 908-277-8625    Fax: 908-277-8841

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.