Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dennis Nadler, MD
Pediatrics Physician in Buffalo, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821171257
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Registry record
Entity type Individual (Type 1)
Name Dennis Nadler
Credential MD
Sex Male
Practice address 219 Bryant St, Buffalo, NY, 14222
Phone (716) 888-1300
Fax (716) 888-1315
Enumeration date Oct 21, 2006
Last updated in NPPES Sep 30, 2008
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00026202601 | Other | NY | UNIVERA |
| 0019061890001 | Other | - | PA MEDICAID |
| 02291376 | Medicaid | NY | - |
| 000526905001 | Other | NY | BC/BS |
| 040426002888 | Other | NY | FIDELIS |
| 1211455 | Other | NY | IHA |
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Dennis Nadler?
Dennis Nadler is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Hiran Perinpanayagam Endodontics · Buffalo, NY NPI 1609870963 Philomena Behar Pediatric Otolaryngology Physician · Buffalo, NY NPI 1013913425 Kathleen Courtney Family Nurse Practitioner · Buffalo, NY NPI 1912992116 Lara Connelly Medical Physician Assistant · Buffalo, NY NPI 1598751455 Tom Mazur Clinical Psychologist · Buffalo, NY NPI 1003804949 Valerie Rigual Anesthesiology Physician · Buffalo, NY NPI 1770564940 Kofi Amankwah Maternal & Fetal Medicine Physician · Buffalo, NY NPI 1235110230 Joanne Denz Pediatric Nurse Practitioner · Buffalo, NY NPI 1295712362
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-30.