Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Ronnie Nadler Waltzer, FNP
Nurse Practitioner in Brewster, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639396906
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Registry record
Entity type Individual (Type 1)
Name Mrs. Ronnie Nadler Waltzer
Credential FNP
Sex Female
Practice address 2505 Carmel Ave, Planned Parenthood, Brewster, NY, 10509
Phone (845) 278-7313
Fax (845) 278-7221
Enumeration date Apr 19, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 211071 (NY) Primary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F330509 (NY) Secondary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan.
About the FNP credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Ronnie Waltzer?
The National Provider Identifier (NPI) for Ronnie Waltzer is 1639396906, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ronnie Waltzer practice?
The practice location on file with NPPES is in Brewster, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jnr Pharmacy Corp Durable Medical Equipment & Medical Supplies · Brewster, NY NPI 1780751305 Linda Padroff Clinical Social Worker · Brewster, NY NPI 1699811927 Sls Residential Inc Psychiatric Residential Treatment Facility · Brewster, NY NPI 1780725069 Dr. Foster R. Malmed, D.C., P.C. Chiropractor · Brewster, NY NPI 1891966990 William Meditz Pharmacist · Brewster, NY NPI 1861717621
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.