Mark J Vanviegen, ENP/FNP-BC - Medicare Nurse Practitioner in Buffalo, NY

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Mark J Vanviegen, ENP/FNP-BC is a medicare enrolled "Nurse Practitioner - Family" in Buffalo, New York. He went to Duke University School Of Medicine and graduated in 1999 and has 27 years of diverse experience with area of expertise as Nurse Practitioner. He is a member of the group practice Emergency Medical Association Of New York Pc, Cep America Llc and his current practice location is 266 Elmwood Ave Ste 428, Buffalo, New York. You can reach out to his office (for appointments etc.) via phone at (919) 426-1756.

Mark J Vanviegen is licensed to practice in Wisconsin (license number 11846) 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 1477541779.

Contact Information

Mark J Vanviegen, ENP/FNP-BC
266 Elmwood Ave Ste 428,
Buffalo, NY 14222-2202
(919) 426-1756
Not Available

Map and Direction




Provider's Profile

Full NameMark J Vanviegen
GenderMale
SpecialityNurse Practitioner
Experience27 Years
Location266 Elmwood Ave Ste 428, Buffalo, 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:
  • Mark J Vanviegen attended and graduated from Duke University School Of Medicine in 1999
  NPI Data:
  • NPI Number: 1477541779
  • Provider Enumeration Date: 10/11/2005
  • Last Update Date: 02/20/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6406857465
  • Enrollment ID: I20230111002406

Medical Identifiers

Medical identifiers for Mark J Vanviegen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477541779NPI-NPPES
NP0297MedicaidSC
P00398888OtherNCRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LA2100XNurse Practitioner - Acute Care NP3029682 (Florida)Secondary
363L00000XNurse Practitioner 005002286 (North Carolina)Secondary
363LF0000XNurse Practitioner - Family RN10029872 (Massachusetts)Secondary
363LF0000XNurse Practitioner - Family 11846 (Wisconsin)Primary
363LF0000XNurse Practitioner - Family 149084 (North Carolina)Secondary
363L00000XNurse Practitioner 14586 (Connecticut)Secondary
363L00000XNurse Practitioner F350568 (New York)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Hudson Valley Hospital CenterCortlandt manor, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Emergency Medical Association Of New York Pc842695281334
Cep America Llc6608056171732

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. Mark J Vanviegen allows following entities to bill medicare on his behalf.
Entity NameEmergency Medical Association Of New York Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952356347
PECOS PAC ID: 8426952813
Enrollment ID: O20031126000445
Entity NameNyack Emergency Medical Association Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174627293
PECOS PAC ID: 2062411036
Enrollment ID: O20061221000029
Entity NameHudson Vista Physician Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164749115
PECOS PAC ID: 7517099872
Enrollment ID: O20100722000067
Entity NameEllenville Emergency Medical Associates Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477945905
PECOS PAC ID: 9436478658
Enrollment ID: O20150508001689
Entity NamePhysicians Medical Associates New York Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073386421
PECOS PAC ID: 7618310368
Enrollment ID: O20240209000066

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. Mark J Vanviegen 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
Mark J Vanviegen, ENP/FNP-BC
266 Elmwood Ave, Pmg 428,
Buffalo, NY 14222

Ph: (919) 426-1756		Mark J Vanviegen, ENP/FNP-BC
266 Elmwood Ave Ste 428,
Buffalo, NY 14222-2202

Ph: (919) 426-1756

Reviews and Comments


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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.