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

MAHENDRA DEFONSEKA M.D.
NPI 1699775684
Internal Medicine - Gastroenterology in Henderson, NV

Q: What is Mahendra Defonseka's NPI number?

The NPI number for Mahendra Defonseka is 1699775684. It was assigned to this individual provider in the NPPES registry on July 30, 2005.

Q: What is Mahendra Defonseka's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since July 30, 2005

2610 W HORIZON RIDGE PKWY, SUITE 105, HENDERSON, NV 89052(702) 565-3037 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Mahendra Defonseka M.d. NPPES

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

MAHENDRA DEFONSEKA M.D. (NPI 1699775684) is an individual gastroenterology provider in Henderson, Nevada, licensed in Nevada (3983) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1699775684

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameMAHENDRA DEFONSEKACredential: M.D.

Location Address2610 W HORIZON RIDGE PKWY, SUITE 105Henderson, NV 89052-2869

Mailing Address8010 W Sahara Ave, Suite 235Las Vegas, NV 89117-7905 · (702) 256-3637 · Fax (702) 256-3307

Phone(702) 565-3037

Sole ProprietorNo

Enumeration DateJuly 30, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1699775684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NV · 3983

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

2610 W HORIZON RIDGE PKWY, Henderson, NV 89052

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.

SRINIVAS VUTHOORI, MD, PC

Internal Medicine

2610 W HORIZON RIDGE PKWY, SUITE #103
HENDERSON, NV 89052

Clark County (702) 407-8241

SYED PERVAIZ MD LLC

Internal Medicine

2610 W HORIZON RIDGE PKWY, SUITE 103
HENDERSON, NV 89052

Clark County (702) 693-6222

DR. EDILBERTO DE ANDRADE DDS

Dentist (Periodontics)

2610 W HORIZON RIDGE PKWY, SUITE 202
HENDERSON, NV 89052

Clark County (702) 270-4600

ED DEANDRADE DDS, LTD.

Dentist (Periodontics)

2610 W HORIZON RIDGE PKWY, SUITE #202
HENDERSON, NV 89052

Clark County (702) 270-4600

KENT SWAINE MD PC

Family Medicine

2610 W HORIZON RIDGE PKWY, SUITE #103
HENDERSON, NV 89052

Clark County (702) 407-8241

DENTAL AVENUE, LTD.

Dentist

2610 W HORIZON RIDGE PKWY, SUITE 206
HENDERSON, NV 89052

Clark County (702) 492-1901

LAURA HALPER HARRIS RD

Dietitian, Registered

2610 W HORIZON RIDGE PKWY, 100
HENDERSON, NV 89052

Clark County (702) 434-8222

BRIAN CHRISTOPHER GAMETT DC

Chiropractor

2610 W HORIZON RIDGE PKWY, STE 104
HENDERSON, NV 89052

Clark County (702) 492-6325

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 Mahendra Defonseka's NPI number?

The NPI number for Mahendra Defonseka is 1699775684. It was assigned to this individual provider in the NPPES registry on July 30, 2005.

Where is Mahendra Defonseka located?

Mahendra Defonseka practices at 2610 W Horizon Ridge Pkwy Suite 105, Henderson, NV 89052. The listed phone number is (702) 565-3037.

What is Mahendra Defonseka's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Mahendra Defonseka was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.