Doctor profile · Federal record

Dr. Ryan Buckley, MD

Allergy & Immunology Physician (CMS: Allergy/Immunology) · Littleton, CO

  • NPI 1346628138
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
5920 S Estes St Ste 120
Littleton, CO 801238618
(303) 971-0311
fax (303) 948-0339
Additional location
2352 Meadows Blvd Ste 300
Castle Rock, CO 801098419
(720) 858-7470
fax (303) 797-2166
Mailing address
125 Rampart Way Ste 200
Denver, CO 802306429

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
May 6, 2021
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207K00000X — NUCC code
State license (1)
Colorado #DR.0064420

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346628138. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,247
Distinct HCPCS
10
Medicare allowed
$85,166
HCPCS Description Services Patients Avg allowed
95004 Test for allergy using allergenic extract 2,952 57 $4
95117 Professional service for multiple injections of allergen 694 46 $12
95115 Professional service for single injection of allergen 537 37 $10
95024 Test for allergy using allergenic extract injected into skin 293 24 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 237 148 $129
96160 Administration and interpretation of patient-focused health risk assessment 205 112 $3
94375 Test to measure rate of airflow 137 93 $39
99204 New patient office or other outpatient visit, 45-59 minutes 76 76 $166
99213 Established patient office or other outpatient visit, 20-29 minutes 72 56 $90
94010 Test to measure expiratory airflow and volume 44 30 $28

In context: peer comparison

Among 1 peers in this city , average services per provider: 524. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$74
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 1 $28.52
Novartis Pharmaceuticals Corporation 1 $24.52
Genentech USA, Inc. 1 $20.55

By nature of payment

Food and Beverage
$74

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
657
Patients
243
Total drug cost
$169,725
Drug Type Claims Patients Total cost
Symbicort (Budesonide/Formoterol Fumarate) Brand 101 29 $57,101
Advair Hfa (Fluticasone Propion/Salmeterol) Brand 89 28 $48,952
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 89 55 $2,732
Ipratropium Bromide Generic 81 29 $4,692
Montelukast Sodium Generic 81 32 $1,132
Fluticasone-Salmeterol (Fluticasone Propion/Salmeterol) Brand 46 14 $11,266
Azelastine Hcl Generic 38 12 $1,735
Prednisone Generic 26 21 $58
Breo Ellipta (Fluticasone/Vilanterol) Brand 23 0 $9,837
Spiriva Respimat (Tiotropium Bromide) Brand 20 0 $17,580

Frequently asked questions

Auto-generated from federal data
What is Dr. Ryan Buckley's medical specialty?
Dr. Ryan Buckley practices Allergy & Immunology Physician in Littleton, CO.
Where does Dr. Ryan Buckley practice?
Dr. Ryan Buckley practices at 5920 S Estes St Ste 120, Littleton, CO 801238618. Office phone: 3039710311.
What is Dr. Ryan Buckley's NPI?
Dr. Ryan Buckley's National Provider Identifier (NPI) is 1346628138, issued by NPPES.
Does Dr. Ryan Buckley accept Medicare assignment?
Yes. Dr. Ryan Buckley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryan Buckley commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for multiple injections of allergen (HCPCS 95117); Professional service for single injection of allergen (HCPCS 95115). Source: CMS Medicare Physician & Other Practitioners file.