Are you Mark J. Vanviegen, ENP/FNP-BC? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 266 Elmwood Ave Ste 428, Buffalo, NY 14222
About Mark Vanviegen
Mark J. Vanviegen, ENP/FNP-BC is a nurse practitioner practicing in Buffalo, NY. Mark is also listed as specializing in nurse practitioner — acute care. Medicare claims data shows Mark provided 234 services to 234 patients. The services billed most often include emergency department visit with high level of medical decision making, emergency department visit with moderate level of medical decision making, and emergency department visit with low level of medical decision making. This provider record is associated with NPI 1477541779.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (919) 426-1756
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
266 ELMWOOD AVE STE 428
Buffalo, NY 14222
Procedures Most Often Billed to Medicare
234 services · 234 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
115 | More often than most peers in Nurse Practitioner |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
108 | More often than most peers in Nurse Practitioner |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
11 | Less often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nurse practitioners in Buffalo 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1999 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Mark J. Vanviegen specialize in?
Mark J. Vanviegen is a nurse practitioner in Buffalo, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mark J. Vanviegen located?
Mark J. Vanviegen is listed at 266 Elmwood Ave Ste 428, Buffalo, NY 14222. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark J. Vanviegen's phone number?
The number on file is (919) 426-1756. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark J. Vanviegen?
Mark J. Vanviegen's National Provider Identifier is 1477541779. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Mark J. Vanviegen train?
Mark J. Vanviegen attended Other, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark J. Vanviegen have?
Mark J. Vanviegen has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Mark J. Vanviegen do most often?
According to Medicare billing data, Mark J. Vanviegen the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark J. Vanviegen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark J. Vanviegen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.