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

DR. HENRY KLOS III MD
NPI 1649899956
Internal Medicine - Gastroenterology in Buffalo, NY

Q: What is Henry Klos's NPI number?

The NPI number for Henry Klos is 1649899956. It was assigned to this individual provider in the NPPES registry on April 16, 2020.

Q: What is Henry Klos's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Henry Klos was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.

Active since April 16, 2020

1091 MAIN ST STE 301, BUFFALO, NY 14209(716) 626-2644 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 17, 2026, Apr 16, 2020 (2 updates tracked since 2020).

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About Dr. Henry Klos Iii Md NPPES

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

DR. HENRY KLOS III MD (NPI 1649899956) is an individual gastroenterology provider in Buffalo, New York, licensed in New York (343169) and active in the NPI registry since April 2020.

NPPES Registry Identity

NPI1649899956

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. HENRY KLOS IIICredential: MD

Location Address1091 MAIN ST STE 301Buffalo, NY 14209-2398

Mailing Address462 Grider StBuffalo, NY 14215-3021 · (716) 898-3941 · Fax (716) 898-3279

Phone(716) 626-2644

Sole ProprietorNo

Enumeration DateApril 16, 2020

Last NPPES UpdateJuly 17, 20262 updates tracked since enumeration

NPPES CertifiedJuly 17, 2026

✔ NPI 1649899956 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 NY · 343169

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.

1091 MAIN ST STE 301, Buffalo, NY 14209

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Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS VAIBHAVIBEN SOLANKI MD

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