Active NPI 1003887738 Individual Practitioner Male Practitioner

Dr. Leon Samuel Greos , MD

Allergy & Immunology • Centennial, CO

Professional Overview & Biography Verified Profile Summary

Dr. Leon Greos, MD is a registered healthcare professional specializing in Allergy & Immunology in Centennial, CO. Practice services are available at 13111 E BRIARWOOD AVE STE 340 under active NPI credentials.

Frequently performed procedures and clinical services include test for allergy using allergenic extract, test for allergy using skin patch, professional service for multiple injections of allergen. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

13111 E Briarwood Ave Ste 340

Centennial, CO 801123913

Telephone 3036323694

Fax 3036323692

Associated Practice Facility / Clinic

🏢 Colorado Allergy And Asthma Centers, Pc Facility NPI 1295307957

Specialty Benchmarks & Practice Insights

Comparative analytics for Allergy & Immunology in Centennial, CO

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 15.5 Yrs

State Avg: 25.3 Yrs

Regional Practice Density

4 Specialists

Practicing in Centennial, CO (106 Statewide)

Telehealth Adoption Rate

25.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

39.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2022)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	2,439	51	$11.00	$4.21
95044 Test for allergy using skin patch	1,236	19	$11.00	$5.29
95117 Professional service for multiple injections of allergen	793	73	$25.00	$12.10
95024 Injection of allergenic extracts into skin for immediate reaction analysis	445	28	$13.00	$8.88
95115 Injection of incremental dosages of allergen	353	35	$20.00	$9.95
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	226	148	$185.00	$128.22
96160 Administration and interpretation of patient-focused health risk assessment	192	114	$6.00	$2.84
99213 Established patient office or other outpatient visit, typically 15 minutes	110	90	$125.00	$91.25
94010 Test to measure expiratory airflow and volume	99	67	$63.00	$27.62
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$275.00	$169.82
94375 Diagnostic testing in a pulmonary function lab	42	33	$68.00	$39.93
94060 Test to measure expiratory airflow and volume changes before and after medication administration	25	24	$104.00	$39.82
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	18	$80.00	$57.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	1,888	36	$11.00	$4.27
95117 Professional service for multiple injections of allergen	481	60	$25.00	$11.90
95024 Injection of allergenic extracts into skin for immediate reaction analysis	356	23	$13.00	$9.02
95115 Injection of incremental dosages of allergen	262	28	$20.00	$9.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	124	86	$185.00	$128.49
99213 Established patient office or other outpatient visit, typically 15 minutes	94	72	$125.00	$86.49
96160 Administration and interpretation of patient-focused health risk assessment	83	60	$6.00	$2.88
94010 Test to measure expiratory airflow and volume	55	44	$63.00	$30.95
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	39	39	$275.00	$171.50
94375 Diagnostic testing in a pulmonary function lab	26	21	$68.00	$40.59
94060 Test to measure expiratory airflow and volume changes before and after medication administration	18	17	$104.00	$48.77
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	14	$80.00	$56.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	1,768	37	$11.00	$4.30
95117 Professional service for multiple injections of allergen	502	65	$25.00	$10.85
95024 Injection of allergenic extracts into skin for immediate reaction analysis	331	24	$12.87	$7.55
95115 Injection of incremental dosages of allergen	276	30	$20.00	$9.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	127	82	$176.42	$91.42
99213 Established patient office or other outpatient visit, typically 15 minutes	103	81	$119.87	$62.86
96160 Administration and interpretation of patient-focused health risk assessment	93	67	$6.00	$2.55
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$269.27	$162.07
94010 Test to measure expiratory airflow and volume	32	25	$63.00	$32.70
94375 Diagnostic testing in a pulmonary function lab	18	17	$68.00	$38.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	12	$73.85	$38.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	2,023	44	$11.00	$4.33
95117 Professional service for multiple injections of allergen	601	59	$25.00	$10.51
95024 Injection of allergenic extracts into skin for immediate reaction analysis	310	20	$13.00	$8.31
95115 Injection of incremental dosages of allergen	304	35	$20.00	$8.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	151	90	$175.00	$102.79
94010 Test to measure expiratory airflow and volume	111	71	$63.00	$33.22
96160 Administration and interpretation of patient-focused health risk assessment	110	66	$5.73	$3.02
99213 Established patient office or other outpatient visit, typically 15 minutes	103	83	$119.00	$74.23
94375 Diagnostic testing in a pulmonary function lab	43	36	$68.00	$38.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$268.00	$165.99
94060 Test to measure expiratory airflow and volume changes before and after medication administration	34	30	$104.00	$60.61
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	11	11	$34.00	$23.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	2,392	48	$11.00	$5.25
95117 Professional service for multiple injections of allergen	496	56	$25.00	$9.87
95024 Injection of allergenic extracts into skin for immediate reaction analysis	402	22	$13.00	$8.05
95115 Injection of incremental dosages of allergen	256	38	$20.00	$8.56
94010 Test to measure expiratory airflow and volume	147	90	$63.00	$34.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	143	91	$175.00	$102.42
99213 Established patient office or other outpatient visit, typically 15 minutes	129	99	$119.00	$71.11
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$268.00	$161.59
94060 Test to measure expiratory airflow and volume changes before and after medication administration	33	27	$104.00	$58.67
94375 Diagnostic testing in a pulmonary function lab	18	18	$68.00	$39.39
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	11	$72.00	$43.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	2,126	42	$10.99	$5.93
95117 Professional service for multiple injections of allergen	361	45	$25.00	$9.72
95024 Injection of allergenic extracts into skin for immediate reaction analysis	280	20	$13.00	$6.24
95115 Injection of incremental dosages of allergen	174	29	$20.00	$8.17
94010 Test to measure expiratory airflow and volume	137	82	$62.84	$33.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	127	80	$175.00	$100.12
99213 Established patient office or other outpatient visit, typically 15 minutes	120	93	$119.00	$69.67
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	39	39	$270.41	$153.88
94060 Test to measure expiratory airflow and volume changes before and after medication administration	36	32	$103.89	$55.19
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	17	16	$34.00	$17.46
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	13	$72.00	$42.59
94375 Diagnostic testing in a pulmonary function lab	14	13	$68.00	$33.27

Medical Specialties & State Licenses

CMS Verified: 2021-05-04

Allergy & Immunology Primary Specialty

NUCC Taxonomy Code: 207K00000X

State License CO DR.0028923

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

01289230 (CO)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

4 Associated Practitioners

Claire Anderson , FNP-C

Nurse Practitioner - Family

NPI 1134010838

Family Nurse Practitioner (Certified)

Constance Larsen

Specialist/Technologist - Athletic Trainer

NPI 1184088866

Dr. Chad Lomas , MD

Allergy & Immunology

NPI 1265771026

Doctor of Medicine (M.D.)

Sheila Wertz , PA-C

Physician Assistant - Medical

NPI 1447618566

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events

📍

Updated Practice Location May 04, 2021

Registered at 13111 E BRIARWOOD AVE STE 340, CENTENNIAL, CO 801123913 (Tel: 3036323694)

📍

Updated Business Mailing Address May 04, 2021

Registered at 125 RAMPART WAY STE 200, DENVER, CO 802306429 (Tel: 7208587550)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 04, 2021

Allergy & Immunology (License #DR.0028923 in CO)

✅

NPI Profile Active December 19, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location December 19, 2007

Registered at 125 RAMPART WAY, SUITE 200, DENVER, CO 802306406 (Tel: 7208587600)

📍

Updated Business Mailing Address December 19, 2007

Registered at 14000 E ARAPAHOE RD, SUITE 240, CENTENNIAL, CO 801124043 (Tel: 3036323694)

👤

Provider Name / Credentials Updated December 19, 2007

Recorded as LEON GREOS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 19, 2007

Specialist (License #28923 in CO)

🟢

Initial NPI Registration & Enumeration January 31, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1003887738

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: January 31, 2006

Last Update: May 04, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

125 Rampart Way Ste 200

Denver, CO 802306429

Phone: 7208587550

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.