Jean Cassmer, RN
Registered Nurse · Stony Brook, NY
Jean Cassmer, RN is a registered nurse with a practice address in Stony Brook, New York, and NPI 1013249960, issued on Feb 3, 2010. Check the license (New York 315577, 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
- Jean Cassmer
- Credential
- RN
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 315577 NY
Self-reported in NPPES; status is on the state search - Practice location
- 207 Hallock RD, Stony Brook, NY 11790
- Phone
- (631) 689-8920
- Enumerated
- Feb 3, 2010
- Entity
- Type 1 · individual
Also registered at 207 Hallock RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jean Cassmer 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 315577Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
61 registered nurse records list a Stony Brook practice address
They are 61 of the 3,053 NPPES records with a Stony Brook practice address, and 28,445 registered nurse records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 61 in Stony Brook → All 28,445 in New York → Every provider in Stony Brook →
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- Hannah Aakjar, RNBeacon, NY1437741097
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- Stephanie AaronsonSpring Valley, NY1407512361
- Bracha Aba-Baruch, RNBrooklyn, NY1881463461
- Lily AbabioCorona, NY1790642585
- Annalee Abad-Sanchez, RNBronx, NY1588930812
- Patricia AbahBronx, NY1508314741
- Morenike AbajinginBrooklyn, NY1922586551
Common questions
What is Jean Cassmer, RN's NPI number?
Jean Cassmer, RN's National Provider Identifier (NPI) is 1013249960, issued on Feb 3, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jean Cassmer, RN located?
The NPPES record lists a practice address at 207 Hallock RD, Stony Brook, NY, 11790. Phone: (631) 689-8920. Providers update this record themselves, so call before visiting.
How can I verify Jean Cassmer, RN's license?
NPPES lists New York license number 315577, 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.