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ISAIARASI GNANASEKARAN M.D
NPI 1306919345
Internal Medicine - Nephrology in Bronx, NY

Active since November 16, 2006PECOS Enrolled
234 E 149TH ST, BRONX, NY 10451(718) 579-5548(718) 579-4963 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Isaiarasi Gnanasekaran M.d NPPES

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

ISAIARASI GNANASEKARAN M.D (NPI 1306919345) is an individual nephrology provider in Bronx, New York, licensed in New York (151046) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1306919345
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameISAIARASI GNANASEKARANCredential: M.D
Location Address234 E 149TH STBronx, NY 10451-5504
Mailing Address51 Rose AveEastchester, NY 10709-3705 · (914) 779-6342
Phone(718) 579-5548
Fax(718) 579-4963
Sole ProprietorYes
Enumeration DateNovember 16, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1306919345 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in NY · 151046
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
234 E 149TH ST, Bronx, NY 10451
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified37F93
Medicare UPINF 31003
Medicaid01010360NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Isaiarasi Gnanasekaran M.d is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Isaiarasi Gnanasekaran reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Downtown Bronx Medical Associates PC
Same address
Emergency Medical Services
234 E 149TH ST, STE 8D200
Bronx, NY 10451
  • Reassigned Medicare billing, New York enrollment
  • 971 clinicians in this Medicare group
NPI 1689618407 (718) 576-6200
Harlem Medical Associates PC
0.8 mi
General Practice
506 MALCOLM X BLVD (LENOX AVE)
New York, NY 10037
  • Reassigned Medicare billing, New York enrollment
  • 676 clinicians in this Medicare group
NPI 1487957692 (631) 675-9300

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10451 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. THOMAS HENRY PARRY M.D.
Emergency Medicine
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-6010
MAIRA FONSECA
Dermatology
234 E 149TH ST
BRONX, NY 10451
Bronx County (212) 639-3210
DR. RO GONSALVES M.D.
Emergency Medicine
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-5000
JONATHAN V LI MD
Student in an Organized Health Care Education/Training Program
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-5000
ZULEYKA A GRULLON LCSW
Social Worker (Clinical)
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-5000
JOSHUA RONALD GRAVEL MD, MSC
Emergency Medicine
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-5000
REBEKAH SNITKOFF
Physician Assistant
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-5000
MR. CARLOS ESTEBAN NARVAEZ MD
Student in an Organized Health Care Education/Training Program
234 E 149TH ST
BRONX, NY 10451
Bronx County (718) 579-5000

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 Isaiarasi Gnanasekaran's NPI number?

The NPI number for Isaiarasi Gnanasekaran is 1306919345. It was assigned to this individual provider in the NPPES registry on November 16, 2006.

Where is Isaiarasi Gnanasekaran located?

Isaiarasi Gnanasekaran practices at 234 E 149th St, Bronx, NY 10451. The listed phone number is (718) 579-5548.

What is Isaiarasi Gnanasekaran's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Isaiarasi Gnanasekaran enrolled in Medicare?

Yes. Isaiarasi Gnanasekaran is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Isaiarasi Gnanasekaran's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isaiarasi Gnanasekaran reassigns Medicare benefits to 2 organizations: Downtown Bronx Medical Associates PC (Bronx, NY) and Harlem Medical Associates PC (New York, NY). Each 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 Isaiarasi Gnanasekaran's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Isaiarasi Gnanasekaran was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.