NPI Portal NPI Lookup & Verification

Ronald Stuart Zelnick, M.D.

Ronald Stuart Zelnick is a Surgery Physician provider (Surgery) practicing in Jupiter, FL, registered in the NPPES registry with NPI 1871589598 since 2005. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1871589598
Entity type Individual (Type 1)
Name Ronald Stuart Zelnick
Credential M.D.
Sex Male
Practice address Jupiter, FL, 33458
Phone 5615757875
Fax 5615755874
Enumeration date 2005-09-27
Last updated in NPPES 2021-12-22

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208C00000X Colon & Rectal Surgery Physician Secondary 57409 FL
208600000X Surgery Physician Primary 57409 FL

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
063638000 Medicaid FL
Copy-ready billing details
Provider: Ronald Zelnick, M.D.
NPI: 1871589598
Taxonomy: 208600000X (Surgery Physician)
Address: Jupiter, FL, 33458

Other providers at this practice address

NPI Name Type Specialty Location
1982691614 Community Surgical Specialists P.A. Organization Surgery Physician Jupiter, FL
1568459246 John Li Individual Otology & Neurotology Physician Jupiter, FL
1962490573 Thomas Lipin Individual Otolaryngology Physician Jupiter, FL
1528056884 Steven Schnell Individual Ophthalmology Physician Jupiter, FL
1427047836 Jose Proenza Individual Gastroenterology Physician Jupiter, FL
1972577872 John C Li MD PA Organization Otology & Neurotology Physician Jupiter, FL
1104890839 Jared Brunk Individual Medical Physician Assistant Jupiter, FL
1063474195 Ammar Almakkee Individual Nephrology Physician Jupiter, FL

Verify this record

Cross-check NPI 1871589598 against the authoritative CMS record: view Ronald Stuart Zelnick on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify Ronald Zelnick's NPI record?
Cross-check NPI 1871589598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1871589598 active?
Yes — as of the latest NPPES snapshot, NPI 1871589598 is active (record last updated 2021-12-22).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-12-22.