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DR. LEON SAMUEL GREOS MD
NPI 1003887738
Allergy & Immunology in Centennial, CO

Active since January 31, 2006
13111 E BRIARWOOD AVE STE 340, CENTENNIAL, CO 80112(303) 632-3694(303) 632-3692 Get Directions Write a Review

NPPES record last updated: May 4, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Leon Samuel Greos Md NPPES

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

DR. LEON SAMUEL GREOS MD (NPI 1003887738) is an individual allergy & immunology provider in Centennial, Colorado, licensed in Colorado (DR.0028923) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1003887738
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameDR. LEON SAMUEL GREOSCredential: MD
Location Address13111 E BRIARWOOD AVE STE 340Centennial, CO 80112-3913
Mailing Address125 Rampart Way Ste 200Denver, CO 80230-6429 · (720) 858-7550 · Fax (720) 858-7615
Phone(303) 632-3694
Fax(303) 632-3692
Sole ProprietorNo
Enumeration DateJanuary 31, 2006
Last NPPES UpdateMay 4, 2021
NPPES CertifiedMay 4, 2021
✔ NPI 1003887738 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in CO · DR.0028923
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
13111 E BRIARWOOD AVE STE 340, Centennial, CO 80112
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Other Identifiers 1

Medicaid01289230CO

Other Providers at the Same Location NPPES 3

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

MRS. CLAIRE WILT ANDERSON FNP-C
Nurse Practitioner (Family)
13111 E BRIARWOOD AVE STE 340
CENTENNIAL, CO 80112
Arapahoe County (303) 632-3694
DR. CHAD LOMAS M.D.
Allergy & Immunology
13111 E BRIARWOOD AVE STE 340
CENTENNIAL, CO 80112
Arapahoe County (303) 632-3694
COLORADO ALLERGY AND ASTHMA CENTERS, PC
Specialist
13111 E BRIARWOOD AVE STE 340
CENTENNIAL, CO 80112
Arapahoe County (303) 632-3694

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 Leon Greos's NPI number?

The NPI number for Leon Greos is 1003887738. It was assigned to this individual provider in the NPPES registry on January 31, 2006.

Where is Leon Greos located?

Leon Greos practices at 13111 E Briarwood Ave Ste 340, Centennial, CO 80112. The listed phone number is (303) 632-3694.

What is Leon Greos's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

When was this NPI record last updated?

The NPPES record for Leon Greos was last updated on May 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.