Mary-stewart Willsie, DO - Medicare Emergency Medicine in Newark, DE

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Mary-stewart Willsie, DO is a medicare enrolled "Emergency Medicine" physician in Newark, Delaware. She went to Kansas City University Of Physicians And Surgeons and graduated in 2009 and has 15 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Main Line Healthcare and her current practice location is 4755 Ogletown Stanton Rd, Newark, Delaware. You can reach out to her office (for appointments etc.) via phone at (130) 273-3100.

Mary-stewart Willsie is licensed to practice in Delaware (license number C7-0004280) 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 1780818377.

Contact Information

Mary-stewart Willsie, DO
4755 Ogletown Stanton Rd,
Newark, DE 19718-0001
(130) 273-3100
Not Available

Map and Direction




Physician's Profile

Full NameMary-stewart Willsie
GenderFemale
SpecialityEmergency Medicine
Experience15 Years
Location4755 Ogletown Stanton Rd, Newark, Delaware
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:
  • Mary-stewart Willsie attended and graduated from Kansas City University Of Physicians And Surgeons in 2009
  NPI Data:
  • NPI Number: 1780818377
  • Provider Enumeration Date: 05/11/2009
  • Last Update Date: 07/25/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 4183856164
  • Enrollment ID: I20140627001532

Medical Identifiers

Medical identifiers for Mary-stewart Willsie such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780818377NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine C7-0004280 (Delaware)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Main Line Hospital LankenauWynnewood, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Main Line Healthcare1951215201907

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. Mary-stewart Willsie allows following entities to bill medicare on her behalf.
Entity NameMain Line Healthcare
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922077643
PECOS PAC ID: 1951215201
Enrollment ID: O20040308000373
Entity NameEmergency Care Services Of Pennsylvania Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114955010
PECOS PAC ID: 1759301799
Enrollment ID: O20051206000046
Entity NameProspect Health Access Network Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568819084
PECOS PAC ID: 5698065142
Enrollment ID: O20160613000737

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. Mary-stewart Willsie 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
Mary-stewart Willsie, DO
4755 Ogletown Stanton Rd,
Newark, DE 19718-0001

Ph: (130) 273-3100		Mary-stewart Willsie, DO
4755 Ogletown Stanton Rd,
Newark, DE 19718-0001

Ph: (130) 273-3100

Reviews and Comments


Emergency Medicine Doctors in Newark, DE

Dr. Sepehr Sedigh Haghighat, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4755 Ogletown Stanton Rd, Newark, DE 19718
Phone: 302-733-3901    
Paul C Anderson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4755 Ogeltown Stanton Road, Newark, DE 19718
Phone: 302-733-1000    Fax: 302-733-1633
Valerie Ann Cohen, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4755 Ogletown Stanton Rd, Newark, DE 19718
Phone: 302-623-4050    
Brian E Burgess, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4755 Ogletown Stanton Road, Newark, DE 19718
Phone: 302-733-1000    Fax: 302-733-1633
Kristina Louise Stransky, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4755 Ogletown Stanton Rd, Newark, DE 19718
Phone: 302-733-1042    
Christopher Lanier Carpenter, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4755 Ogletown Stanton Rd Ste 6e34, Newark, DE 19718
Phone: 302-733-4186    Fax: 302-733-6905
Caitlin Boyle,
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4755 Ogletown Stanton Rd, Newark, DE 19718
Phone: 302-733-1000    

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.