Michael Tennysen, RN
Registered Nurse · Warsaw, NY
Michael Tennysen, RN is a registered nurse with a practice address in Warsaw, New York, and NPI 1225522956, issued on Jun 16, 2018. Check the license with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Tennysen
- Credential
- RN
- Primary taxonomy
- Registered Nurse 163W00000X
- Practice location
- 400 N Main St, Warsaw, NY 14569
- Phone
- (585) 786-2233
- Enumerated
- Jun 16, 2018
- Entity
- Type 1 · individual
Also registered at 400 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelsey Adams, PA-CPhysician Assistant1437628674
- Howard Ang, MDAnesthesiology Physician1003845439
- Heather ArmstrongPhysical Therapy Assistant1255481818
- Jon Baker, MDSurgery Physician1881676732
- Brittany Ball, PAPhysician Assistant1902449044
- Justin Bayliss, OTR.LOccupational Therapist1467677336
Verify Michael Tennysen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
The practice group's Medicare quality score for 2023: 84.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
3 hospital and facility affiliations
- Geneva General Hospital, IncGeneva, NY
- Syracuse Gastroenterological Associates.pcEast Syracuse, NY
- Upstate New York Medical Professional CorporationWarsaw, NY
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
18 registered nurse records list a Warsaw practice address
They are 18 of the 335 NPPES records with a Warsaw practice address, and 28,445 registered nurse records in New York.
All 18 in Warsaw → All 28,445 in New York → Every provider in Warsaw →
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- Patricia AbahBronx, NY1508314741
- Morenike AbajinginBrooklyn, NY1922586551
Common questions
What is Michael Tennysen, RN's NPI number?
Michael Tennysen, RN's National Provider Identifier (NPI) is 1225522956, issued on Jun 16, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Michael Tennysen, RN located?
The NPPES record lists a practice address at 400 N Main St, Warsaw, NY, 14569. Phone: (585) 786-2233. Providers update this record themselves, so call before visiting.
How can I verify Michael Tennysen, RN's license?
Search the New York board that licenses this profession; the NPPES record confirms identity only.
What is Michael Tennysen, RN's Medicare quality score?
The 2023 MIPS final score is 84.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.