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MERCY MEDICAL CENTER
NPI 1104097294
Internal Medicine in Rockville Centre, NY

Active since March 17, 2008
1000 N. VILLAGE AVENUE, ROCKVILLE CENTRE, NY 11571(516) 705-1353(516) 705-3575 Get Directions Write a Review

NPPES record last updated: January 21, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mercy Medical Center NPPES

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

MERCY MEDICAL CENTER (NPI 1104097294) is a healthcare organization registered as an internal medicine in Rockville Centre, New York and active in the NPI registry since March 2008. The organization lists John Reilly, Chief Medical Officer, as its authorized official.

NPPES Registry Identity

NPI1104097294
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMERCY MEDICAL CENTER
Location Address1000 N. VILLAGE AVENUERockville Centre, NY 11571
Mailing AddressP.o. Box 798Rockville Centre, NY 11571 · (516) 705-1353 · Fax (516) 705-3575
Phone(516) 705-1353
Fax(516) 705-3575
Organization SubpartYes
Authorized OfficialJohn ReillyChief Medical Officer · (516) 705-1353
Enumeration DateMarch 17, 2008
Last NPPES UpdateJanuary 21, 2020
✔ NPI 1104097294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 178140
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1000 N. VILLAGE AVENUE, Rockville Centre, NY 11571
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Other Identifiers 1

Medicaid02898020NY

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)

Mercy Medical Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

268

Medicare enrollment records show 268 clinicians reassign Medicare billing to Mercy Medical Center, which bills Medicare for the services they deliver. Of these, 10 practice at this address and 68 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 16

Neurology120
Emergency Medicine44
Psychiatry43
Obstetrics/Gynecology12
General Surgery11
Nurse Practitioner11
Clinical Social Worker8
Internal Medicine4
8 other specialties15

Nearest to this location (20)

See all 268
Shiby Abraham, MD
Psychiatry
NPI 1437547437
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 626-3729
✔ PECOS✔ Accepts MedicareSame address
Maria Arpino, LCSW, CASAC
Clinical Social Worker
NPI 1710197009
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-3400
✔ PECOSSame address
Anil Bhagavath, MD
Emergency Medicine
NPI 1851888135
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-2525
✔ PECOS✔ Accepts MedicareSame address
Joji Binu, PMHNP-BC
Nurse Practitioner
NPI 1770120339
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-1330
✔ PECOS✔ Accepts MedicareSame address
Kurt Dischner, MD
Emergency Medicine
NPI 1922050442
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-2854
✔ PECOS✔ Accepts MedicareSame address
Hassan Frinjari, MD
Obstetrics/Gynecology
NPI 1811127764
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-1613
✔ PECOS✔ Accepts MedicareSame address
Nenad Grlic, DO
Emergency Medicine
NPI 1023048782
1000 N. VILLAGE AVENUE
Rockville Centre, NY 11571
(516) 705-1818
✔ PECOS✔ Accepts MedicareSame address
Saiful Islam, NP
Nurse Practitioner
NPI 1952912354
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(212) 203-1773
✔ PECOS✔ Accepts MedicareSame address
Maria Rosero, DO
Emergency Medicine
NPI 1598010423
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-2854
✔ PECOS✔ Accepts MedicareSame address
Gaurav Verma, M.D
Emergency Medicine
NPI 1588926588
1000 NORTH VILLAGE AVE DEPARTMENT OF EMERGENCY MEDICINE
Rockville Centre, NY 11570
(516) 705-1210
✔ PECOS✔ Accepts MedicareSame address
Thierry Duchatellier, MD
Cardiovascular Disease (Cardiology)
NPI 1619987120
2000 NORTH VILLAGE AVE SUITE 106 - 108
Rockville Centre, NY 11570
(516) 678-1444
✔ PECOS✔ Accepts Medicare0.2 mi
Chrisoula Politis, MD
Critical Care (Intensivists)
NPI 1346500451
1000 N VILLAGE AVE
Rockville Centre, NY 11570
(516) 705-1613
✔ PECOS✔ Accepts Medicare0.2 mi
Cheriyan Thomas, M.D
Internal Medicine
NPI 1619248481
230 HILTON AVE STE 106
Hempstead, NY 11550
(516) 849-4678
✔ PECOS✔ Accepts Medicare1.9 mi
David Flomenhaft, PHD, LCSW
Clinical Social Worker
NPI 1467453043
96 SYDNEY AVE
Malverne, NY 11565
(516) 596-0739
✔ PECOS✔ Accepts Medicare2.2 mi
Erum Hashmi, M.D
Obstetrics/Gynecology
NPI 1154607323
380 NASSAU RD
Roosevelt, NY 11575
(516) 571-8600
✔ PECOS✔ Accepts Medicare2.2 mi
Richard Krugley, MD
Psychiatry
NPI 1366430217
755 HEMPSTEAD TPKE
Uniondale, NY 11553
(631) 608-5620
✔ PECOS✔ Accepts Medicare2.2 mi
Sanjay Shetty, M.D.
Emergency Medicine
NPI 1770510893
1 HEALTHY WAY
Oceanside, NY 11572
(516) 632-3900
✔ PECOS✔ Accepts Medicare2.5 mi
Tashonna Webster, PHD, PMHNP, MPH, MS
Nurse Practitioner
NPI 1336811074
51 COMMANDER AVE
Garden City, NY 11530
(516) 642-5761
✔ PECOS✔ Accepts Medicare2.5 mi
Gregory Nishimura, M.D.
General Surgery
NPI 1881744795
1420 BROADWAY
Hewlett, NY 11557
(516) 374-8631
✔ PECOS✔ Accepts Medicare4.7 mi
Bhanu Siva Kumar Sabbula, MBBS
Pulmonary Disease
NPI 1548623275
2201 HEMPSTEAD TPKE
East Meadow, NY 11554
(516) 296-2147
✔ PECOS✔ Accepts Medicare4.9 mi
See all 268 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 Mercy Medical Center's NPI number?

The NPI number for Mercy Medical Center is 1104097294. It was assigned to this organization in the NPPES registry on March 17, 2008.

Where is Mercy Medical Center located?

Mercy Medical Center is located at 1000 N. Village Avenue, Rockville Centre, NY 11571. The listed phone number is (516) 705-1353.

What is Mercy Medical Center's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mercy Medical Center enrolled in Medicare?

Yes. Mercy Medical Center is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mercy Medical Center?

According to the CMS Revalidation Reassignment List (October 2026 release), 268 clinicians in 16 Medicare specialties reassign their Medicare billing to Mercy Medical Center. 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 Neurology (120), Emergency Medicine (44) and Psychiatry (43). Of these, 10 practice at this address and 68 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 Mercy Medical Center was last updated on January 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.