Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ronald S Nadel, M.D.
Dermatology Physician in Springfield, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821094715
See something wrong? Report a correction
Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2885202202 | Other | CT | CONNECTICARE INC |
| 0304172 | Other | - | UNITED HEALTH CARE |
| 070006824 | Other | - | RAILROAD MEDICARE |
| NAC04404 | Other | MA | BLUE CROSS BLUE SHIELD |
| 14674 | Other | - | HEALTH NEW ENGLAND |
| 028852 | Other | MA | TUFTS HEALTH PLANS |
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 NPI 1821094715 active?
How do I verify Ronald Nadel's NPI record?
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-24.