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RF LEDON M.D. P.C.
NPI 1912160516
Internal Medicine - Gastroenterology in Union, NJ

Active since July 03, 2008
1308 MORRIS AVE, SUITE102, UNION, NJ 07083(908) 851-2770 Get Directions Write a Review

NPPES record last updated: November 14, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rf Ledon M.d. P.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RF LEDON M.D. P.C. (NPI 1912160516), doing business as Advanced Gastroenterology Group, Llc, is a healthcare organization registered as a gastroenterology in Union, New Jersey and active in the NPI registry since July 2008. The organization lists Elena Fiorito, Billing Manager, as its authorized official.

NPPES Registry Identity

NPI1912160516
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameRF LEDON M.D. P.C.
Location Address1308 MORRIS AVE, SUITE102Union, NJ 07083-3331
Mailing Address1308 Morris Ave, Suite102Union, NJ 07083-3331 · (908) 851-2770
Phone(908) 851-2770
Organization SubpartNo
Authorized OfficialElena FioritoBilling Manager · (908) 851-2770
Enumeration DateJuly 3, 2008
Last NPPES UpdateNovember 14, 2025
NPPES CertifiedNovember 14, 2025
✔ NPI 1912160516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1308 MORRIS AVE, Union, NJ 07083
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Other Names 1

Doing Business AsAdvanced Gastroenterology Group, Llc

Other Identifiers 1

Medicaid0670405NJ

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rf Ledon M.d. P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

21

Medicare enrollment records show 21 clinicians reassign Medicare billing to Rf Ledon M.D. P.C., which bills Medicare for the services they deliver. Of these, 8 practice at this address and 15 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 5

Gastroenterology12
Pathology3
Registered Dietitian or Nutrition Professional3
Nurse Practitioner2
Internal Medicine1

Nearest to this location (20)

See all 21
Rajesh Dhirmalani, DO
Gastroenterology
NPI 1073522819
1308 MORRIS AVE SUITE 102
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Kunal Grover, MD
Gastroenterology
NPI 1346445574
1308 MORRIS AVE SUITE 102
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Prakriti Merchant, M.D.
Gastroenterology
NPI 1447546775
1308 MORRIS AVE
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Tracey Alves, APN
Nurse Practitioner
NPI 1780038869
1308 MORRIS AVE STE 102
Union, NJ 07083
(908) 265-9200
✔ PECOS✔ Accepts MedicareSame address
Daniel Bodek, DO
Gastroenterology
NPI 1306266408
1308 MORRIS AVE STE 102
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Ruta Bondarenko, DNP, NP-C
Nurse Practitioner
NPI 1639414436
1308 MORRIS AVE STE 102
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Arun Mathew, M.D.
Gastroenterology
NPI 1265878185
1308 MORRIS AVE STE 102
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Michael Viksjo, MD
Gastroenterology
NPI 1508028770
1308 MORRIS AVE STE 102
Union, NJ 07083
(908) 851-2770
✔ PECOS✔ Accepts MedicareSame address
Robert Greenblatt, M.D.
Gastroenterology
NPI 1861580433
2333 MORRIS AVE SUITE B6
Union, NJ 07083
(908) 964-1144
✔ PECOS✔ Accepts Medicare2.3 mi
Patrick Tempera, MD
Gastroenterology
NPI 1508830050
2333 MORRIS AVE BUILDING C-1
Union, NJ 07083
(908) 851-2771
✔ PECOS✔ Accepts Medicare2.3 mi
Michael Margolin, MD
Gastroenterology
NPI 1053316653
210 NORTH AVE E
Cranford, NJ 07016
(908) 272-6300
✔ PECOS✔ Accepts Medicare3.6 mi
Janet Brun, RDN CDCES
Registered Dietitian or Nutrition Professional
NPI 1144804626
39 LEXINGTON BLVD
Clark, NJ 07066
(732) 809-4562
5.5 mi
David Wexler, MD FACG
Gastroenterology
NPI 1386637254
727 RARITAN RD SUITE 101
Clark, NJ 07066
(732) 499-8000
✔ PECOS✔ Accepts Medicare6.4 mi
Jeffrey Shrensel, MD
Gastroenterology
NPI 1366785115
727 RARITAN RD STE 101
Clark, NJ 07066
(732) 499-8000
✔ PECOS✔ Accepts Medicare6.4 mi
Shahida Ahmed, M.D.
Pathology
NPI 1780695882
61 LAUREL HOLLOW CT
Edison, NJ 08820
(973) 676-1000
✔ PECOS✔ Accepts Medicare9.5 mi
Ozlem Fidan Ozbilgin, M.D.
Pathology
NPI 1750648200
39 HAMILTON DR E
North Caldwell, NJ 07006
(347) 260-9562
✔ PECOS✔ Accepts Medicare13 mi
Shawn Philip, DO
Internal Medicine
NPI 1437712288
7600 RIVER RD
North Bergen, NJ 07047
(201) 710-2755
✔ PECOS✔ Accepts Medicare15 mi
Christopher Lenza, DO
Gastroenterology
NPI 1598925026
ONE ROBERT WOOD JOHNSON PLACE MEB 478
New Brunswick, NJ 08903
(732) 235-7784
✔ PECOS✔ Accepts Medicare17 mi
Aqeel Ahmed, M.D.
Pathology
NPI 1538300991
1130 SAINT NICHOLAS AVE R-301
New York, NY 10032
(212) 851-4505
✔ PECOS✔ Accepts Medicare19 mi
Amy Batti, RD
Registered Dietitian or Nutrition Professional
NPI 1811612039
4616 W HOWARD LN
Austin, TX 78728
(224) 558-8613
✔ Accepts Medicare1,492 mi
See all 21 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rf Ledon M.D. P.C.'s NPI number?

The NPI number for Rf Ledon M.D. P.C. is 1912160516. It was assigned to this organization in the NPPES registry on July 3, 2008. The provider is doing business as Advanced Gastroenterology Group, LLC.

Where is Rf Ledon M.D. P.C. located?

Rf Ledon M.D. P.C. is located at 1308 Morris Ave Suite102, Union, NJ 07083. The listed phone number is (908) 851-2770.

What is Rf Ledon M.D. P.C.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Rf Ledon M.D. P.C. enrolled in Medicare?

Yes. Rf Ledon M.D. P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rf Ledon M.D. P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 21 clinicians in 5 Medicare specialties reassign their Medicare billing to Rf Ledon M.D. P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Gastroenterology (12), Pathology (3) and Registered Dietitian or Nutrition Professional (3). Of these, 8 practice at this address and 15 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Rf Ledon M.D. P.C. was last updated on November 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.