Dr. Nigelarani Sivapalasingam, MD
- Medicare services, 2023
- 856
- Part D claims, 2024
- 816
- Hospital affiliations
- 3
- Industry payments
- $120
- Medical groups
- 4
- Practice address
- 4422 Third Avenue, Bronx, NY 10457
- Practice phone
- Call (212) 960-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sivapalasingam's professional email, personal email and mobile number
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Dr. Nigelarani Sivapalasingam is an internist in Bronx, New York
Dr. Sivapalasingam practices at St. Barnabas Hospital in Bronx, New York, part of SBH Health System.
Dr. Sivapalasingam's NPI, 1780846477, was assigned on June 25, 2008. Dr. Sivapalasingam holds New York license 288660.
- NPI
- 1780846477NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355479882
- NPI enumeration date
- June 25, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 960-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nigelarani Sivapalasingam practices at St. Barnabas Hospital in Bronx, New York
Dr. Sivapalasingam's primary practice is St. Barnabas Hospital, at 4422 Third Avenue, Bronx, NY 10457 in Bronx County. The practice phone is (212) 960-9000.
- St. Barnabas Hospital4422 Third Avenue, Bronx, NY 10457 · Bronx CountyPhone(212) 960-9000
Source: Dmand AI Affiliation Data
Dr. Nigelarani Sivapalasingam is affiliated with 6 sites of care and 4 medical groups
Dr. Sivapalasingam's primary practice is St. Barnabas Hospital in Bronx, New York, part of SBH Health System. Dr. Sivapalasingam is also affiliated with Canton-Potsdam Hospital. The medical group on file is Essen Medical Associates. Dmand AI also links Dr. Sivapalasingam to 1 more hospital, 3 group practices and clinics and 3 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nigelarani Sivapalasingam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sivapalasingam practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Barnabas Hospital | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across SBH Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nigelarani Sivapalasingam is one of 9,643 internists in New York
Internal medicine is Dr. Sivapalasingam's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sivapalasingam is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Sivapalasingam
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nigelarani Sivapalasingam billed Medicare for 856 services in 2023
CMS data shows 856 Medicare services from Dr. Sivapalasingam across 6 procedure codes in 2023. Medicare paid $70,495 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sivapalasingam's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 2862023: 856199%
Dr. Sivapalasingam compared with the New York median for internists, 2023
- Dr. Sivapalasingam
- New York median
- Medicare services
- 856vs 4262.0 times
- Part D claims
- 460vs 62226% below
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Sivapalasingam's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nigelarani Sivapalasingam's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Sivapalasingam's median patient age at 62, with 49% women.
Dr. Sivapalasingam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women49%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Nigelarani Sivapalasingam wrote 816 Medicare Part D claims in 2024
In 2024, Dr. Sivapalasingam wrote 816 Medicare Part D claims for 146 patients. 88% of them were for generic drugs. CMS names the drug for 460 of them, across 21 drugs with 11 or more claims each, at $13,530 in total drug cost. In 2023, CMS named 4,507 claims across 100 drugs.
Dr. Sivapalasingam's Part D claims by kind of drug, 2024
- Generic714 claims88%
- Brand-name and other102 claims13%
Dr. Sivapalasingam's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Sivapalasingam's Part D claims, 2024
- Opioids3%25 of 816 claims
- Antibiotics8%64 of 816 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,5072024: 46090%
Drugs named by CMS: 21 in 2024, 100 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Nigelarani Sivapalasingam takes part in Medicare
Dr. Sivapalasingam accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nigelarani Sivapalasingam received $120 in industry payments from 2023 to 2024
CMS Open Payments shows 6 general payments to Dr. Sivapalasingam from 3 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $65.
General payments to Dr. Sivapalasingam by program year, 2023 to 2024
Companies that paid Dr. Sivapalasingam the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nigelarani Sivapalasingam's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nigelarani Sivapalasingam
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nigelarani Sivapalasingam's NPI number?
Dr. Nigelarani Sivapalasingam's NPI number is 1780846477. It was assigned on June 25, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Nigelarani Sivapalasingam?
Dr. Nigelarani Sivapalasingam is an internist in Bronx, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nigelarani Sivapalasingam practice?
Dr. Sivapalasingam practices at 4422 Third Avenue, Bronx, NY 10457. Dr. Sivapalasingam's primary practice is St. Barnabas Hospital in Bronx, New York, part of SBH Health System. Dmand AI also links Dr. Sivapalasingam to 1 hospital, 3 group practices and clinics and 3 medical groups.
What is Dr. Nigelarani Sivapalasingam's office phone number?
The practice phone on file for Dr. Sivapalasingam is (212) 960-9000.
What is Dr. Nigelarani Sivapalasingam's medical license number?
Dr. Sivapalasingam holds New York license 288660.
Which hospitals is Dr. Nigelarani Sivapalasingam affiliated with?
Dr. Sivapalasingam practices at St. Barnabas Hospital in Bronx, New York. Dr. Sivapalasingam is also affiliated with Canton-Potsdam Hospital. Dmand AI links Dr. Sivapalasingam to 1 more hospital.
What medical group is Dr. Nigelarani Sivapalasingam part of?
Dr. Sivapalasingam is linked to Essen Medical Associates. Dmand AI links Dr. Sivapalasingam to 3 more medical groups.
Does Dr. Nigelarani Sivapalasingam accept Medicare?
Yes. CMS data shows Dr. Sivapalasingam billed Medicare for 856 services in 2023, and Dr. Sivapalasingam accepts Medicare assignment.
What services does Dr. Nigelarani Sivapalasingam bill to Medicare?
In 2023, Dr. Sivapalasingam's most billed Medicare services were nursing facility care (99309), nursing facility care (99308) and nursing facility care (99307).
What drugs does Dr. Nigelarani Sivapalasingam prescribe most?
In 2024 Medicare Part D data, Dr. Sivapalasingam's most prescribed drugs by claims were Albuterol Sulfate Hfa, Lisinopril and Amlodipine Besylate.
Has Dr. Nigelarani Sivapalasingam received payments from drug or device companies?
CMS Open Payments shows $120 in general payments to Dr. Sivapalasingam from 3 companies from 2023 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Nigelarani Sivapalasingam been practicing?
Dr. Sivapalasingam graduated from medical school in 1993, 33 years ago.
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