Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald Eric Prentis Frenkel, M.D.

Ophthalmology Physician in Stuart, FL · enumerated 2006.

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

National Provider Identifier

1649280553

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Registry record

Entity type Individual (Type 1)

Name Ronald Eric Prentis Frenkel

Credential M.D.

Sex Male

Practice address 509 Se Riverside Dr, Suite 302, Stuart, FL, 34994

Phone (772) 287-9000

Fax (772) 287-0507

Enumeration date Aug 9, 2006

Last updated in NPPES Sep 12, 2018

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License ME51202 (FL) 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
07791	Other	FL	BCBS OF FLORIDA
5044106	Other	-	CCN
180007295	Other	-	RAILROAD MEDICARE NUMBER
1984148	Other	-	FIRST HEALTH

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.

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Frequently asked questions

Is NPI 1649280553 active?

Yes, as of the latest NPPES snapshot, NPI 1649280553 is active (record last updated 2018-09-12).

How do I verify Ronald Frenkel's NPI record?

Cross-check NPI 1649280553 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Clarence Graves Physician Assistant · Stuart, FL NPI 1568468437 John Robinson Neurological Surgery Physician · Stuart, FL NPI 1346225984 Center for Cranial/Spinal Surgery Neurological Surgery Physician · Stuart, FL NPI 1962461558 D Noble Nephrology Physician · Stuart, FL NPI 1609829407 Christina Palmeri Certified Registered Nurse Anesthetist · Stuart, FL NPI 1063458644 John Viola Neurological Surgery Physician · Stuart, FL NPI 1174551949 Coastal Care Corporation Ambulatory Surgical Clinic/Center · Stuart, FL NPI 1316966336 Lisa Smith Nurse Practitioner · Stuart, FL NPI 1215946959

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-12.