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DIAMOND MEDICAL GROUP, P.C.
NPI 1760664395
Internal Medicine - Gastroenterology in Wantagh, NY

Active since December 05, 2007
1488 WANTAGH AVE, WANTAGH, NY 11793(516) 785-6800(516) 785-2121 Get Directions Write a Review

NPPES record last updated: November 6, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Diamond Medical Group, P.c. NPPES

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

DIAMOND MEDICAL GROUP, P.C. (NPI 1760664395) is a healthcare organization registered as a gastroenterology in Wantagh, New York and active in the NPI registry since December 2007. The organization lists Michael C Barth, Doctor, as its authorized official.

NPPES Registry Identity

NPI1760664395
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameDIAMOND MEDICAL GROUP, P.C.
Location Address1488 WANTAGH AVEWantagh, NY 11793-2204
Mailing AddressPo Box 57Bellmore, NY 11710-0057 · (516) 785-6800 · Fax (516) 785-2121
Phone(516) 785-6800
Fax(516) 785-2121
Organization SubpartNo
Authorized OfficialMichael C BarthDoctor · (516) 785-6800
Enumeration DateDecember 5, 2007
Last NPPES UpdateNovember 6, 2015
✔ NPI 1760664395 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.
1488 WANTAGH AVE, Wantagh, NY 11793
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Other Identifiers 1

Medicare PINWED571NY

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Diamond Medical Group, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

11

Medicare enrollment records show 11 clinicians reassign Medicare billing to Diamond Medical Group, P.C., which bills Medicare for the services they deliver. Of these, 5 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Gastroenterology5
Pathology3
Anesthesiology2
Internal Medicine1

Clinicians, nearest first (11)

Carly Barth, M.D.
Gastroenterology
NPI 1588926604
1488 WANTAGH AVE
Wantagh, NY 11793
(516) 785-6800
✔ PECOS✔ Accepts MedicareSame address
Michael Barth, MD
Gastroenterology
NPI 1104807130
1488 WANTAGH AVE
Wantagh, NY 11793
(516) 785-6800
✔ PECOS✔ Accepts MedicareSame address
Jarred Marshak, M.D.
Gastroenterology
NPI 1538417027
1488 WANTAGH AVE
Wantagh, NY 11793
(516) 785-6800
✔ PECOS✔ Accepts MedicareSame address
Anthony Razzano, MD
Gastroenterology
NPI 1912388430
1488 WANTAGH AVE
Wantagh, NY 11793
(516) 785-6800
✔ PECOS✔ Accepts MedicareSame address
Jordan Rush, M.D.
Gastroenterology
NPI 1306002373
1488 WANTAGH AVE
Wantagh, NY 11793
(516) 785-6800
✔ PECOS✔ Accepts MedicareSame address
Eric Barth, M.D.
Internal Medicine
NPI 1053490912
2155 WANTAGH AVE
Wantagh, NY 11793
(516) 785-1200
✔ PECOS1.2 mi
Tadeusz Strzelecki, M.D.
Pathology
NPI 1104962372
29 JERICHO TPKE STE A
Jericho, NY 11753
(516) 280-9822
✔ PECOS✔ Accepts Medicare10 mi
Fanyi Kong, MD
Pathology
NPI 1528131596
2811 208TH ST
Bayside, NY 11360
(917) 655-4693
✔ PECOS✔ Accepts Medicare16 mi
Diane Lam, M.D.
Anesthesiology
NPI 1982845038
13215 41ST AVE SUITE CB
Flushing, NY 11355
(718) 321-3382
✔ PECOS✔ Accepts Medicare18 mi
Marina Galperin
Anesthesiology
NPI 1285689109
3632 NOSTRAND AVE
Brooklyn, NY 11229
(718) 743-7090
✔ PECOS✔ Accepts Medicare23 mi
Jasminka Balderacchi, M.D.
Pathology
NPI 1306822101
FIRST AVE AT 16TH STREET
New York, NY 10003
(516) 542-1090
✔ PECOS✔ Accepts Medicare25 mi

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 Diamond Medical Group, P.C.'s NPI number?

The NPI number for Diamond Medical Group, P.C. is 1760664395. It was assigned to this organization in the NPPES registry on December 5, 2007.

Where is Diamond Medical Group, P.C. located?

Diamond Medical Group, P.C. is located at 1488 Wantagh Ave, Wantagh, NY 11793. The listed phone number is (516) 785-6800.

What is Diamond Medical Group, P.C.'s specialty?

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

Is Diamond Medical Group, P.C. enrolled in Medicare?

Yes. Diamond Medical Group, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Diamond Medical Group, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 4 Medicare specialties reassign their Medicare billing to Diamond Medical Group, 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 (5), Pathology (3) and Anesthesiology (2). Of these, 5 practice at this address and 6 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 Diamond Medical Group, P.C. was last updated on November 6, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.