DR. LEON SAMUEL GREOS (MD) – Specialist, NPI 1003887738

DR. LEON SAMUEL GREOS (MD) is a healthcare provider. based in Centennial, Colorado. specializing in Specialist. They hold the professional credentials MD. They hold a License No. DR.0028923 (CO). The NPI Number for DR. LEON SAMUEL GREOS (MD) is 1003887738

Main info

Male
42 Years Of Experience
Accepts Medicare Assignment
Name
DR. LEON SAMUEL GREOS (MD)
NPI
1003887738
Phone
(303) 632-3694
Address
13111 E BRIARWOOD AVE STE 340
Enumeration Date
31 January 2006
Last Update Date
4 May 2021

Doctor Profile

Medical School Name
UN OF CALIFORNIA, IRVINE, COLLEGE OF MEDICINE
Secondary Phone
3036323694
Graduation Year
1984 (42 years ago)
PAC ID
7113057738
Group Practice PAC ID
9133012842
Professional Enrollment ID
I20100608000858
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:20State licenses:1Digital endpointsOther names

Provider Addresses for DR. LEON SAMUEL GREOS (MD)

  • 13111 E BRIARWOOD AVE STE 340

    CENTENNIAL, CO 801123913

    Phone: (303) 632-3694

    Fax: (303) 632-3692

    Type: Location

  • 125 RAMPART WAY STE 200

    DENVER, CO 802306429

    Phone: (720) 858-7550

    Fax: (720) 858-7615

    Type: Mailing

  • East Arapahoe Road, Centennial, Arapahoe County, Colorado, 80122, United States

    SUITE 240

    CENTENNIAL, CO 801124043

    Phone: (303) 632-3694

    Fax: (303) 632-3692

    Type: Mailing

  • 125 Rampart Way, 125, Rampart Way, Rampart Campus, Denver, Denver County, Colorado, 80230, United States

    SUITE 200

    DENVER, CO 802306406

    Phone: (720) 858-7600

    Fax: (720) 858-7605

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $28.

Total Amount is formed as General ($28) + Research ($0) + Ownership ($0) = $28.

Last reported payment date: 2023-02-21 • Largest payer in this snapshot: PFIZER INC. ($28).

Total Amount

$28

General + Research + Ownership

Payments

1

Total payment records

General Amount

$28

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-02-21

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
PFIZER INC.$28
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 80112)

Loading plans...

Provider's Procedures

DR. LEON SAMUEL GREOS (MD) performs procedures in Specialist. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ALLERGY/IMMUNOLOGYCO94060Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration4138
ALLERGY/IMMUNOLOGYCO94727Determination of lung volumes using gas dilution or washout1414
ALLERGY/IMMUNOLOGYCO95004Injection of allergenic extracts into skin, accessed through the skin195940

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9133012842View full group profile
NameSpecialtyState
Physician AssistantIL
Nurse PractitionerCO
Pediatric MedicineCO
-CO
Nurse PractitionerCO
-CO
A L L E R G Y/ I M M U N O L O G YCO
A L L E R G Y/ I M M U N O L O G YCO
A L L E R G Y/ I M M U N O L O G YCO
Nurse PractitionerCO

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is the registry number for DR. LEON SAMUEL GREOS (MD)?
The registry entry for DR. LEON SAMUEL GREOS (MD) shows NPI 1003887738.
Should I treat DR. LEON SAMUEL GREOS (MD) as an active provider?
Patients and plans typically see DR. LEON SAMUEL GREOS (MD) as active in the national extract.
What type of care does DR. LEON SAMUEL GREOS (MD) provide?
DR. LEON SAMUEL GREOS (MD)'s profile centers on Other Service Providers. Clinical services aligned with this taxonomy classification.
Is DR. LEON SAMUEL GREOS (MD) tied to Centennial, Colorado?
If you are local to Centennial, Colorado, DR. LEON SAMUEL GREOS (MD) may be relevant to your search.
Can I export DR. LEON SAMUEL GREOS (MD)'s record?
You can download the official NPPES record; we summarize key fields for readability.

Similar Providers

East Arapahoe Road, Centennial, Arapahoe County, Colorado, 80122, United States
NPI: 1700857109

THOMAS SCOTT GILMER (M.D.)

Internal Medicine Physician
13111 E. BRIARWOOD AVE
NPI: 1750331930
6801, South Yosemite Street, Centennial, Arapahoe County, Colorado, 80112, United States
NPI: 1366480816
1610 Prairie Center Pkwy Ste 2230
NPI: 1336175546

DR. SHERI POZNANOVIC (MD)

Pediatric Otolaryngology Physician
South Monaco Street, Denver, Colorado, 80237, United States
NPI: 1225056112
6825 S GALENA ST STE 314
NPI: 1427166842
32469 EL DIENTE COURT
NPI: 1811083322
8200 E BELLEVIEW AVE STE 404
NPI: 1962582783
6825, South Galena Street, Centennial, Arapahoe County, Colorado, 80112, United States
NPI: 1811072515