Mariann Graczyk, FNP
Family Nurse Practitioner · Olean, NY
Mariann Graczyk, FNP is a family nurse practitioner with a practice address in Olean, New York, and NPI 1801043617, issued on Aug 22, 2008. Check the license (New York F331428-1, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mariann Graczyk
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- F331428-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Leo Moss Dr, Olean, NY 14760
- Phone
- (716) 373-8050
- Enumerated
- Aug 22, 2008
- Entity
- Type 1 · individual
Also registered at 1 Leo Moss Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Breanne Abbott, MSWMental Health Counselor1568712917
- Susan Andrews, RN, NPAdministrator Registered Nurse1194009332
- Deanna BaldwinRegistered Nurse1558700302
- Clare BarrCommunity Health Registered Nurse1588982177
- Michal BaxterSocial Worker1558753251
- Cynthia Beatty, L.P.N.Licensed Practical Nurse1487099024
Verify Mariann Graczyk 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 F331428-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
16 family nurse practitioner records list a Olean practice address
They are 16 of the 675 NPPES records with a Olean practice address, and 13,030 family nurse practitioner records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 16 in Olean → All 13,030 in New York → Every provider in Olean →
Other family nurse practitioner records in New York
- Carolyn A'Hearn, NPSyracuse, NY1093435554
- Lindsey Aanonsen, FNPStaten Island, NY1386368926
- Abigail Aaron, FNPNew York, NY1548125594
- Memoudou Abalola, NPBronx, NY1154580520
- Jennifer Abate, FNP-BCNew York, NY1568134732
- Karen Abate, PHD, APRN- BC, FNAPNew York, NY1669599585
- Tatiana AbayaBronx, NY1366323958
- Evilina AbayevaFresh Meadows, NY1932929585
- Dalia AbbasRockville Centre, NY1871425363
- Toufeeq Abbasi, NPNew York, NY1184632655
Common questions
What is Mariann Graczyk, FNP's NPI number?
Mariann Graczyk, FNP's National Provider Identifier (NPI) is 1801043617, issued on Aug 22, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mariann Graczyk, FNP located?
The NPPES record lists a practice address at 1 Leo Moss Dr, Olean, NY, 14760. Phone: (716) 373-8050. Providers update this record themselves, so call before visiting.
How can I verify Mariann Graczyk, FNP's license?
NPPES lists New York license number F331428-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.