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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ARUN ASHOK VELTHOTTAM RATHINAM MD
NPI 1811565419
Internal Medicine - Hematology & Oncology in Fargo, ND

Active since June 11, 2021

NPPES record last updated: August 5, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 5, 2026, Mar 28, 2023, Jun 11, 2021 (3 updates tracked since 2021).

About Arun Ashok Velthottam Rathinam Md NPPES

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

ARUN ASHOK VELTHOTTAM RATHINAM MD (NPI 1811565419) is an individual hematology & oncology provider in Fargo, North Dakota, licensed in North Dakota (21030) and active in the NPI registry since June 2021.

NPPES Registry Identity

NPI1811565419
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameARUN ASHOK VELTHOTTAM RATHINAMCredential: MD
Location Address820 4TH ST NFargo, ND 58102-4539
Mailing Address820 4th St NFargo, ND 58102-4539 · (701) 234-6161
Phone(701) 234-6161
Sole ProprietorNo
Enumeration DateJune 11, 2021
Last NPPES UpdateAugust 5, 20263 updates tracked since enumeration
NPPES CertifiedAugust 5, 2026
✔ NPI 1811565419 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in ND · 21030
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
820 4TH ST N, Fargo, ND 58102
Open in Google Maps ↗

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.

GERALD G GROSS MD
Internal Medicine (Hematology & Oncology)
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-6161
PAULINE HOLMAN MS, CGC
Genetic Counselor, MS
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-7634
AMIT PANWALKAR
Internal Medicine (Hematology & Oncology)
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-6161
HARITHA REDDY MOPURU MD
Internal Medicine (Hematology & Oncology)
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-6161
ISAAK NATHANIEL AILTS MD
Internal Medicine
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-6161
JARRETT FAILING M.D.
Internal Medicine (Hematology & Oncology)
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-6161
LISA ANN BRAUN NP
Nurse Practitioner
820 4TH ST N
FARGO, ND 58102
Cass County (701) 234-6161
OLUWATOBI EZEKIEL ODETOLA MBBS
Internal Medicine (Hematology & Oncology)
820 4TH ST N
FARGO, ND 58102
Cass County (012) 346-1617

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 Arun Ashok Velthottam Rathinam's NPI number?

The NPI number for Arun Ashok Velthottam Rathinam is 1811565419. It was assigned to this individual provider in the NPPES registry on June 11, 2021.

Where is Arun Ashok Velthottam Rathinam located?

Arun Ashok Velthottam Rathinam practices at 820 4th St N, Fargo, ND 58102. The listed phone number is (701) 234-6161.

What is Arun Ashok Velthottam Rathinam's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Arun Ashok Velthottam Rathinam was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.