NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Randall S Zielinski, MD

Internal Medicine Physician in Dover, NH · enumerated 2006 · practices at Wentworth Douglass Physician Corporation.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1811079585

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Randall S Zielinski
Credential MD
Sex Male
Practice address 10 Members Way Fl 5, Dover, NH, 03820
Enumeration date Oct 20, 2006
Last updated in NPPES Sep 23, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 10108 (NH) Primary
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
3075994 Medicaid NH -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Randall Zielinski practice?
The practice location on file with NPPES is in Dover, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Randall Zielinski?
The National Provider Identifier (NPI) for Randall Zielinski is 1811079585, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-23.