Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Rajkumar G Mariwalla, MD

Individual provider Gastroenterology Physician · NPI 1154309037

Dr. Rajkumar G Mariwalla, MD is a Gastroenterology in West Islip, New York. Qualified in 1975, 51 years ago. Practices with Island Gastroenterology Consultants PC, a 13-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
51
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1175 Montauk Hwy Ste #3
West Islip, NY 11795-4939
Phone: (631) 669-1171
Fax: (631) 669-1912
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 143127 (NY)

Record details

NPI number1154309037
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 2, 2006
Last updated in NPPESJanuary 8, 2014
Mailing address1111 Montauk Hwy, Suite #3-1, West Islip, NY 11795-4910

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1975 (51 years in practice)
Group practice Island Gastroenterology Consultants Pc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in West Islip