Margaret Mary Duffy, MD - Medicare Nephrology in Allentown, PA

Margaret Mary Duffy, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Allentown, Pennsylvania. She went to Rutgers School Of Dental Medicine and graduated in 2012 and has 12 years of diverse experience with area of expertise as Nephrology. She is a member of the group practice Kidney Care Specialists Llc and her current practice location is 1230 S Cedar Crest Blvd Stes 301, 302, 304, Allentown, Pennsylvania. You can reach out to her office (for appointments etc.) via phone at (610) 432-4529.

Margaret Mary Duffy is licensed to practice in Pennsylvania (license number MD461963) 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 1518233881.

Contact Information

Margaret Mary Duffy, MD
1230 S Cedar Crest Blvd Stes 301, 302, 304,
Allentown, PA 18103-6212
(610) 432-4529
(610) 432-2206

Map and Direction




Physician's Profile

Full NameMargaret Mary Duffy
GenderFemale
SpecialityNephrology
Experience12 Years
Location1230 S Cedar Crest Blvd Stes 301, 302, 304, Allentown, Pennsylvania
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 Mary Duffy attended and graduated from Rutgers School Of Dental Medicine in 2012
  NPI Data:
  • NPI Number: 1518233881
  • Provider Enumeration Date: 03/30/2012
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6709176035
  • Enrollment ID: I20170907001314

Medical Identifiers

Medical identifiers for Margaret Mary Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518233881NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology MD461963 (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Fresenius Medical Care Reading, LlcReading, PADialysis facility
Lehigh Valley HospitalAllentown, PAHospital
Schuylkill Medical Center - South Jackson StreetPottsville, PAHospital
Reading HospitalWest reading, PAHospital
Geisinger Medical CenterDanville, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kidney Care Specialists Llc993145007976

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 Mary Duffy allows following entities to bill medicare on her behalf.
Entity NameValley Kidney Specialists, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134419385
PECOS PAC ID: 2860670734
Enrollment ID: O20110623000259
Entity NameKidney Care Specialists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962992404
PECOS PAC ID: 9931450079
Enrollment ID: O20181127000039

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 Mary Duffy 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 Mary Duffy, MD
1230 S Cedar Crest Blvd Ste 301,
Allentown, PA 18103-6212

Ph: (610) 432-4529
Margaret Mary Duffy, MD
1230 S Cedar Crest Blvd Stes 301, 302, 304,
Allentown, PA 18103-6212

Ph: (610) 432-4529

Reviews and Comments


Internal Medicine Doctors in Allentown, PA

Jessica Mary Boehmler, MD
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Phone: 610-439-8856    Fax: 610-439-8856
Muhammad Majeed, MD
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James A Burke, MD
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Phone: 610-402-3110    Fax: 610-402-3112
Stephen R Shore, MD
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Phone: 610-628-7900    Fax: 833-816-7513
Tarika Sejal Chowdhary, MD
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Phone: 610-969-4370    
Ashley Vojtek, DO
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Medicare: Not Enrolled in Medicare
Practice Location: 1200 S Cedar Crest Blvd, Allentown, PA 18103
Phone: 484-862-3200    

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.