Geethan Sivananthan
Gastroenterology Physician · Union, NJ
Geethan Sivananthan is a gastroenterology physician with a practice address in Union, New Jersey, and NPI 1598907990, issued on Mar 31, 2009. Check the license (New Jersey 25MA09696600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Geethan Sivananthan
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 25MA09696600 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 695 Chestnut St, Union, NJ 07083
- Phone
- (908) 688-6565
- Enumerated
- Mar 31, 2009
- Record last updated
- Apr 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 04670781 NJ
- Medicare enrollment
- Enrolled (PECOS I20150728003953); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 735 in New Jersey → Look up another NPI →
Also registered at 695 Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sujala Chirla, MDGastroenterology Physician1790946663
- Aaron Javier, P.A.-CMedical Physician Assistant1609960558
- Randolph Kahn, M.D.Anesthesiology Physician1235122144
- Joshua Macklin, MDPain Medicine Physician1619144284
- Thirumalai Madhavan, M.D.Anatomic Pathology Physician1386681112
- Samiappan Muthusamy, M.D.Gastroenterology Physician1497713184
Verify Geethan Sivananthan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA09696600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average gastroenterology physician in 2024
970 Medicare Part D claims for 310 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Pantoprazole Sodium238 claims
- Omeprazole111 claims
- Sod Sulf-Potass Sulf-Mag Sulf80 claims
- Mesalamine65 claims
- Esomeprazole Magnesium59 claims
- Famotidine52 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $704.37
39 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Allied Digestive Health LLCUnion, NJ
- Center For Digestive Diseases PAUnion, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geethan Sivananthan among 735 gastroenterology physician records in New Jersey
Geethan Sivananthan is one of 735 gastroenterology physician records with a practice address in New Jersey. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 71% of them.
- NPI issued2009 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2009 · median 2000 among the 564 with a school on file
- Record last updated2019 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 gastroenterology physician records list a practice address in Union
They are 13 of the 1,094 NPPES records with a practice address in Union, and 735 gastroenterology physician records in New Jersey.
All 735 in New Jersey → Every provider in Union → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Daniel Bodek, DOUnion, NJ 070831306266408
- Sujala Chirla, MDUnion, NJ 070831790946663
- Ramon Fernandez-Ledon, M.D.Union, NJ 070831083621460
- Robert Greenblatt, M.D.Union, NJ 070831861580433
- Kunal Grover, MDUnion, NJ 070831346445574
- Pradeep Mahal, M.D.Union, NJ 070831063551687
- Arun Mathew, M.D.Union, NJ 070831265878185
- Prakriti Merchant, M.D.Union, NJ 070831447546775
Common questions
What is Geethan Sivananthan's NPI number?
Geethan Sivananthan's National Provider Identifier (NPI) is 1598907990, issued on Mar 31, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Geethan Sivananthan located?
The NPPES record lists a practice address at 695 Chestnut St, Union, NJ, 07083. Phone: (908) 688-6565. Providers update this record themselves, so call before visiting.
How can I verify Geethan Sivananthan's license?
NPPES lists New Jersey license number 25MA09696600, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Geethan Sivananthan prescribe under Medicare Part D?
In 2024, Geethan Sivananthan had 970 Medicare Part D claims for 310 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Geethan Sivananthan's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.