Dr James R Mcwilliam, MD - Medicare Orthopedic Surgery in Harrison, NY

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Dr James R Mcwilliam, MD is a medicare enrolled "Orthopaedic Surgery - Foot And Ankle Surgery" physician in Harrison, New York. He went to Georgetown University School Of Medicine and graduated in 1991 and has 33 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice White Plains Physician Services and his current practice location is 600 Mamaroneck Ave, Suite 101, Harrison, New York. You can reach out to his office (for appointments etc.) via phone at (914) 686-0111.

Dr James R Mcwilliam is licensed to practice in New York (license number 233993) 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 1467567305.

Contact Information

Dr James R Mcwilliam, MD
600 Mamaroneck Ave, Suite 101,
Harrison, NY 10528-1635
(914) 686-0111
(914) 686-8964

Map and Direction




Physician's Profile

Full NameDr James R Mcwilliam
GenderMale
SpecialityOrthopedic Surgery
Experience33 Years
Location600 Mamaroneck Ave, Harrison, New York
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:
  • Dr James R Mcwilliam attended and graduated from Georgetown University School Of Medicine in 1991
  NPI Data:
  • NPI Number: 1467567305
  • Provider Enumeration Date: 08/20/2006
  • Last Update Date: 07/29/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 8527955319
  • Enrollment ID: I20041027000315

Medical Identifiers

Medical identifiers for Dr James R Mcwilliam such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467567305NPI-NPPES
02595077MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XX0004XOrthopaedic Surgery - Foot And Ankle Surgery 233993 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
White Plains Hospital CenterWhite plains, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
White Plains Physician Services3476894445311

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. Dr James R Mcwilliam allows following entities to bill medicare on his behalf.
Entity NameMontefiore New Rochelle Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295163244
PECOS PAC ID: 0345474706
Enrollment ID: O20150310001611
Entity NameMontefiore Mount Vernon Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013345065
PECOS PAC ID: 7810122231
Enrollment ID: O20150423000849
Entity NameWhite Plains Hospital Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174994149
PECOS PAC ID: 4981593092
Enrollment ID: O20160506000777
Entity NameWhite Plains Physician Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124502687
PECOS PAC ID: 3476894445
Enrollment ID: O20190402000216

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. Dr James R Mcwilliam 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
Dr James R Mcwilliam, MD
600 Mamaroneck Avenue, Suite 101,
Mamaroneck, NY 10528

Ph: (914) 686-0111		Dr James R Mcwilliam, MD
600 Mamaroneck Ave, Suite 101,
Harrison, NY 10528-1635

Ph: (914) 686-0111

Reviews and Comments


Orthopaedic Surgery Doctors in Harrison, NY

Yasmin Dhar, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 600 Mamaroneck Ave, Suite 101, Harrison, NY 10528
Phone: 914-686-0111    
Erick Richard Kazarian, MD
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 450 Mamaroneck Ave Ste 200, Harrison, NY 10528
Phone: 888-636-7840    
Benjamin Berenfeld, M.D.
Orthopedic Surgery
Medicare: May Accept Medicare Assignments
Practice Location: 600 Mamaroneck Ave, Suite 101, Harrison, NY 10528
Phone: 914-686-0111    Fax: 914-686-8964
Brandon Joseph Erickson, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 450 Mamaroneck Ave Ste 200, Harrison, NY 10528
Phone: 800-321-9999    Fax: 267-479-1321
Dr. Cristian Brotea, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 600 Mamaroneck Ave, Suite 101, Harrison, NY 10528
Phone: 914-686-0111    
Tyler William Dixon,
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 450 Mamaroneck Ave Ste 200, Harrison, NY 10528
Phone: 888-636-7840    

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.