Margaret S Dufreney, MD - Medicare Obstetrics/gynecology in Marlboro, NJ

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Margaret S Dufreney, MD is a medicare enrolled "Obstetrics & Gynecology - Obstetrics" physician in Marlboro, New Jersey. She went to Pennsylvania State University College Of Medicine and graduated in 2006 and has 20 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Ob Hospitalist Services New Jersey Pa and her current practice location is 479 County Road 520 Ste A202, Marlboro, New Jersey. You can reach out to her office (for appointments etc.) via phone at (732) 837-1130.

Margaret S Dufreney is licensed to practice in New Jersey (license number 25MA10416100) 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 1922310705.

Contact Information

Margaret S Dufreney, MD
479 County Road 520 Ste A202,
Marlboro, NJ 07746-1087
(732) 837-1130
Not Available

Map and Direction




Physician's Profile

Full NameMargaret S Dufreney
GenderFemale
SpecialityObstetrics/gynecology
Experience20 Years
Location479 County Road 520 Ste A202, Marlboro, 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:
  • Margaret S Dufreney attended and graduated from Pennsylvania State University College Of Medicine in 2006
  NPI Data:
  • NPI Number: 1922310705
  • Provider Enumeration Date: 07/08/2010
  • Last Update Date: 05/08/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3971797549
  • Enrollment ID: I20190724000448

Medical Identifiers

Medical identifiers for Margaret S Dufreney such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922310705NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0000XObstetrics & Gynecology - Obstetrics 25MA10416100 (New Jersey)Primary
207V00000XObstetrics & Gynecology 257582 (New York)Secondary
207V00000XObstetrics & Gynecology 25MA10416100 (New Jersey)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Centrastate Medical CenterFreehold, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ob Hospitalist Services New Jersey Pa347685918240

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. Margaret S Dufreney allows following entities to bill medicare on her behalf.
Entity NamePractice Associates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427016385
PECOS PAC ID: 5890703177
Enrollment ID: O20060330000690
Entity NameOb Hospitalist Services New Jersey Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801169966
PECOS PAC ID: 3476859182
Enrollment ID: O20160307001190
Entity NameCentrastate Specialists, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700389301
PECOS PAC ID: 5890058648
Enrollment ID: O20180410001212

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. Margaret S Dufreney 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
Margaret S Dufreney, MD
331 Newman Springs Rd, Bldg 2, Ste 220,
Red Bank, NJ 07701-5688

Ph: () -		Margaret S Dufreney, MD
479 County Road 520 Ste A202,
Marlboro, NJ 07746-1087

Ph: (732) 837-1130

Reviews and Comments


Obstetrics & Gynecology Doctors in Marlboro, NJ

Dr. Moran Maurine S. Shmulewich Shalev, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 479 Highway 520 Ste A202, Marlboro, NJ 07746
Phone: 732-837-1130    Fax: 732-834-0142

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.