NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Easwar M Sundaram Jr., MD

Neurology Physician in Sherman, TX · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1679571004

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Easwar M Sundaram Jr.
Credential MD
Sex Male
Practice address 321 N Highland Ave, Suite 210, Sherman, TX, 75092
Phone (903) 893-5141
Fax (903) 893-5891
Enumeration date Jul 10, 2005
Last updated in NPPES Aug 11, 2011

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License H5637 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
100153100 Medicaid OK -
83Z011 Other TX BLUE CROSS
130004886 Other TX RAILROAD MEDICARE
114132703 Medicaid TX -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Easwar Sundaram's NPI record?
Cross-check NPI 1679571004 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1679571004 active?
Yes, as of the latest NPPES snapshot, NPI 1679571004 is active (record last updated 2011-08-11).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-11.