Mark J. Vanviegen, ENP/FNP-BC
Nurse Practitioner · Buffalo, NY
Mark J. Vanviegen, ENP/FNP-BC is a nurse practitioner with a practice address in Buffalo, New York, and NPI 1477541779, issued on Oct 11, 2005. Check the license (New York F350568-01, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark J. Vanviegen
- Credential
- ENP/FNP-BC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- F350568-01 NY
F350568 NY
14586 CT
NP3029682 FL
4053567 KY
and 4 more
Self-reported in NPPES; status is on the state search - Practice location
- 266 Elmwood Ave Ste 428, Buffalo, NY 14222
- Phone
- (919) 426-1756
- Enumerated
- Oct 11, 2005
- Record last updated
- Jun 4, 2026
- Medicaid ID
- NP0297 SC
- Medicare enrollment
- Enrolled (PECOS I20260408001893); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,097 in New York → Look up another NPI →
Verify Mark J. Vanviegen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license F350568-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average nurse practitioner in 2024
267 Medicare Part D claims for 180 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 39 claims were for opioids.
Most prescribed
- Cephalexin38 claims
- Oxycodone-Acetaminophen29 claims
- Diclofenac Sodium26 claims
- Ondansetron Hcl18 claims
- Amoxicillin-Clavulanate Potass14 claims
- Dexamethasone13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $30.38
1 payment: food and beverage; the largest payer was Vertex Pharmaceuticals Incorporated. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Cep America LLCStafford Springs, CT
- Kentucky EM-I Medical Services PscCorbin, KY
- Physicians Medical Associates New York PCValhalla, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark J. Vanviegen among 3,097 nurse practitioner records in New York
Mark J. Vanviegen, ENP/FNP-BC is one of 3,097 nurse practitioner records with a practice address in New York. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated1999 · median 2017 among the 1,360 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
221 nurse practitioner records list a practice address in Buffalo
They are 221 of the 13,287 NPPES records with a practice address in Buffalo, and 3,097 nurse practitioner records in New York.
All 3,097 in New York → Every provider in Buffalo → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Julie Comella Higgins, NPBuffalo, NY 142221285876136
- Diana Kachurek, CPNPBuffalo, NY 142221992763700
- April Petrik, FNP-BCBuffalo, NY 142221295057164
- Pamela Sheehan-Schreck, FNPBuffalo, NY 142221861773384
- Karen Torre, NPBuffalo, NY 142221740375906
- Laurie Valvo, PNPBuffalo, NY 142221609912401
- Nadare Alwan, FNP-BCWilliamsville, NY 142211952910036
- Maxwell AntwiWilliamsville, NY 142211336770718
Common questions
What is Mark J. Vanviegen, ENP/FNP-BC's NPI number?
Mark J. Vanviegen, ENP/FNP-BC's National Provider Identifier (NPI) is 1477541779, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Vanviegen, ENP/FNP-BC located?
The NPPES record lists a practice address at 266 Elmwood Ave Ste 428, Buffalo, NY, 14222. Phone: (919) 426-1756. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Vanviegen, ENP/FNP-BC's license?
NPPES lists New York license number F350568-01, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Mark J. Vanviegen, ENP/FNP-BC prescribe under Medicare Part D?
In 2024, Mark J. Vanviegen, ENP/FNP-BC had 267 Medicare Part D claims for 180 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.