NIRANJAN GUNASEKARAN D.O.
NPI 1598108185
Internal Medicine - Nephrology in Bethpage, NY

Q: What is Niranjan Gunasekaran's NPI number?

The NPI number for Niranjan Gunasekaran is 1598108185. It was assigned to this individual provider in the NPPES registry on April 12, 2013.

Q: What is Niranjan Gunasekaran's specialty?

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

Active since April 12, 2013PECOS EnrolledAccepts Medicare Assignment

29.74/100

CMS Quality Rating

4250 HEMPSTEAD TPKE STE 17, BETHPAGE, NY 11714(516) 735-5522 Get Directions Write a Review

NPPES record last updated: January 14, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 14, 2020, Jul 15, 2019, Apr 10, 2019 and 3 more (6 updates tracked since 2016).

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About Niranjan Gunasekaran D.o. NPPES

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

NIRANJAN GUNASEKARAN D.O. (NPI 1598108185) is an individual nephrology provider in Bethpage, New York, licensed in New York (286211) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with St Francis Hospital - The Heart Center, and maintains a secondary practice location in Hialeah.

NPPES Registry Identity

NPI1598108185

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameNIRANJAN GUNASEKARANCredential: D.O.

Location Address4250 HEMPSTEAD TPKE STE 17Bethpage, NY 11714-5707

Mailing Address4250 Hempstead Tpke, Ste 17Bethpage, NY 11714-5707 · (516) 735-5522

Phone(516) 735-5522

Sole ProprietorYes

Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2013

Enumeration DateApril 12, 2013

Last NPPES UpdateJanuary 14, 20206 updates tracked since enumeration

✔ NPI 1598108185 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in NY · 286211

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License OS14133 (FL)

Also ListedHospitalistTaxonomy 208M00000X · License 143357 (IL)

4250 HEMPSTEAD TPKE STE 17, Bethpage, NY 11714

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Secondary Practice Location 1

Location 12001 W 68th St, GME officeHialeah, FL 33016 · Phone (305) 823-5000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Niranjan Gunasekaran D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092008904

PECOS Enrollment IDI20170310000214

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

Medicare enrollment records show Niranjan Gunasekaran reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Long Island Kidney Associates, PC

Same address

Specialist

4250 HEMPSTEAD TURNPIKE, SUITE 17
Bethpage, NY 11714

Reassigned Medicare billing, New York enrollment
5 clinicians in this Medicare group

NPI 1295036531 (516) 735-5522

United Medical Associates PC

161 mi

Clinic/Center

33 LEWIS ROAD, 2ND FLOOR
Binghamton, NY 13905

Reassigned Medicare billing, New York enrollment
528 clinicians in this Medicare group

NPI 1013972801 (607) 770-0025

Butler Physician Services, LLC

954 mi

Internal Medicine

3100 OAK GROVE RD
Poplar Bluff, MO 63901

Reassigned Medicare billing, Missouri enrollment
73 clinicians in this Medicare group

NPI 1982056545 (573) 776-2000

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

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

1,591 services649 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

599 services372 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

465 services176 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

317 services299 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

287 services144 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

226 services43 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

112 services79 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

94 services90 patients

Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305

An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.

46 services46 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

40 services31 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

38 services36 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

34 services24 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

30 services26 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

24 services24 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

21 services14 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

16 services16 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Francis Hospital - The Heart Center

Acute Care Hospitals · Roslyn, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330182

Location100 Port Washington BoulevardRoslyn, NY 11576 · Nassau County

Emergency services

Good Samaritan Hospital Medical Center

Acute Care Hospitals · West Islip, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330286

Location1000 Montauk HighwayWest Islip, NY 11795 · Suffolk County

Emergency services Birthing friendly

Plainview Hospital

Acute Care Hospitals · Plainview, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330331

Location888 Old Country RoadPlainview, NY 11803 · Nassau County

Emergency services

Chsli St Joseph Hospital

Acute Care Hospitals · Bethpage, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330332

Location4295 Hempstead TurnpikeBethpage, NY 11714 · Nassau County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11714 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

29.74/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Cost

28.56

Other Providers at the Same Location NPPES 3

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

NAVNEET KAUR M.D.

Internal Medicine (Nephrology)

4250 HEMPSTEAD TPKE STE 17
BETHPAGE, NY 11714

Nassau County (516) 735-5522

DR. VICTOR CHANG M.D.

Internal Medicine (Nephrology)

4250 HEMPSTEAD TPKE STE 17
BETHPAGE, NY 11714

Nassau County (516) 735-5522

TAZLEEM SHAZAD KHAN MD

Internal Medicine (Nephrology)

4250 HEMPSTEAD TPKE STE 17
BETHPAGE, NY 11714

Nassau County (516) 735-5522

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 Niranjan Gunasekaran's NPI number?

The NPI number for Niranjan Gunasekaran is 1598108185. It was assigned to this individual provider in the NPPES registry on April 12, 2013.

Where is Niranjan Gunasekaran located?

Niranjan Gunasekaran practices at 4250 Hempstead Tpke Ste 17, Bethpage, NY 11714. The listed phone number is (516) 735-5522.

What is Niranjan Gunasekaran's specialty?

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

Is Niranjan Gunasekaran enrolled in Medicare?

Yes. Niranjan Gunasekaran is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Niranjan Gunasekaran's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Niranjan Gunasekaran reassigns Medicare benefits to 3 organizations: Long Island Kidney Associates, PC (Bethpage, NY), United Medical Associates PC (Binghamton, NY) and Butler Physician Services, LLC (Poplar Bluff, MO). 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 Niranjan Gunasekaran's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Niranjan Gunasekaran affiliated with any hospitals?

According to CMS data, Niranjan Gunasekaran is affiliated with St Francis Hospital - The Heart Center, Good Samaritan Hospital Medical Center, Plainview Hospital and Chsli St Joseph Hospital.

When was this NPI record last updated?

The NPPES record for Niranjan Gunasekaran was last updated on January 14, 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.