Active NPI 1023099082 Individual Practitioner Male Practitioner

Dr. Gregg M Santilli , MD

Allergy & Immunology • Plano, TX

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Gregg Santilli, MD is a certified Allergy & Immunology practicing in Plano, TX. With approximately 37 years of clinical experience since graduating from Ohio State University College Of Medicine in 1989, Dr. Santilli delivers high-quality medical care to the local community at 3600 COMMUNICATIONS PKWY.

Dr. Santilli is affiliated with John Allen Van Wagoner, Md, Pa and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include test for allergy using allergenic extract, professional service for preparation and provision of, 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

3600 Communications Pkwy
Suite 675

Plano, TX 750938157

Telephone 9724737544

Fax 9724737545

Associated Practice Facility / Clinic

🏢 Allergy Immunology And Respiratory Care Pa Facility NPI 1821184177

Medicare Profile & Education

Medical School

Ohio State University College Of Medicine

Graduation Year

1989

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Allergy & Immunology in Plano, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

37 Yrs +11.0 yrs vs City Avg

City Avg: 26.0 Yrs

State Avg: 26.4 Yrs

Regional Practice Density

8 Specialists

Practicing in Plano, TX (346 Statewide)

Telehealth Adoption Rate

12.5% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

24.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Santilli (37 Years) 37 Yrs

Plano Specialty Average (26.0 Years) 26.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	1,882	35	$10.00	$3.41
95165 Professional service for preparation and provision of 1 or more antigens	1,518	39	$24.52	$13.70
95117 Professional service for multiple injections of allergen	356	30	$35.00	$11.43
95115 Injection of incremental dosages of allergen	264	16	$25.00	$9.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	172	108	$130.00	$121.92
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	90	75	$20.00	$15.56
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	65	65	$195.00	$159.82
99213 Established patient office or other outpatient visit, typically 15 minutes	60	50	$95.00	$84.36
94375 Diagnostic testing in a pulmonary function lab	59	40	$60.00	$36.71
95012 Test to measure the level of nitric oxide gas	40	29	$35.00	$17.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	1,293	26	$10.00	$3.76
95165 Professional service for preparation and provision of 1 or more antigens	1,042	30	$20.00	$14.29
95117 Professional service for multiple injections of allergen	296	32	$35.00	$11.04
95115 Injection of incremental dosages of allergen	139	13	$25.00	$9.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	137	92	$130.00	$121.26
99213 Established patient office or other outpatient visit, typically 15 minutes	46	41	$95.00	$85.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	39	39	$195.00	$156.28
94375 Diagnostic testing in a pulmonary function lab	30	24	$60.00	$36.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95165 Professional service for preparation and provision of 1 or more antigens	1,037	29	$20.00	$14.99
95004 Test for allergy using allergenic extract	718	13	$10.00	$3.82
95117 Professional service for multiple injections of allergen	311	22	$35.00	$11.01
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	93	66	$130.00	$123.91
99213 Established patient office or other outpatient visit, typically 15 minutes	38	32	$95.00	$87.59
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$194.19	$161.30
94375 Diagnostic testing in a pulmonary function lab	25	19	$60.00	$37.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95165 Professional service for preparation and provision of 1 or more antigens	1,315	32	$20.00	$15.29
95004 Test for allergy using allergenic extract	903	17	$10.00	$3.88
95117 Professional service for multiple injections of allergen	294	25	$35.00	$10.87
95115 Injection of incremental dosages of allergen	152	11	$25.00	$8.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	118	67	$130.00	$125.01
99213 Established patient office or other outpatient visit, typically 15 minutes	44	32	$92.73	$87.69
94375 Diagnostic testing in a pulmonary function lab	31	20	$60.00	$37.88
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$190.00	$163.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	999	19	$10.00	$4.01
95165 Professional service for preparation and provision of 1 or more antigens	883	28	$20.00	$13.95
95117 Professional service for multiple injections of allergen	359	21	$35.00	$10.12
95115 Injection of incremental dosages of allergen	208	13	$25.00	$8.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	87	40	$130.00	$102.91
99213 Established patient office or other outpatient visit, typically 15 minutes	79	55	$85.00	$70.71
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$190.00	$159.95
94375 Diagnostic testing in a pulmonary function lab	30	21	$60.00	$37.83
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	19	13	$35.00	$22.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	2,088	46	$10.00	$3.97
95165 Professional service for preparation and provision of 1 or more antigens	1,219	28	$20.00	$13.30
95117 Professional service for multiple injections of allergen	358	18	$35.00	$9.95
95115 Injection of incremental dosages of allergen	193	12	$25.00	$8.61
95024 Injection of allergenic extracts into skin for immediate reaction analysis	177	11	$12.00	$7.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	113	66	$130.00	$104.68
99213 Established patient office or other outpatient visit, typically 15 minutes	82	60	$85.00	$71.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	69	68	$190.00	$158.42
94375 Diagnostic testing in a pulmonary function lab	53	29	$60.00	$37.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	1,591	32	$10.00	$4.42
95165 Professional service for preparation and provision of 1 or more antigens	1,264	24	$20.00	$11.63
95117 Professional service for multiple injections of allergen	398	22	$35.00	$9.05
99213 Established patient office or other outpatient visit, typically 15 minutes	124	72	$85.00	$66.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	44	44	$190.00	$147.62
94375 Diagnostic testing in a pulmonary function lab	36	21	$60.00	$36.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	15	$130.00	$98.27
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	15	$60.00	$39.73
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	14	14	$35.00	$19.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
95004 Test for allergy using allergenic extract	1,993	38	$10.00	$5.82
95165 Professional service for preparation and provision of 1 or more antigens	581	14	$20.00	$11.49
95117 Professional service for multiple injections of allergen	167	14	$35.00	$8.87
99213 Established patient office or other outpatient visit, typically 15 minutes	80	55	$85.00	$65.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	44	44	$190.00	$147.36
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	39	29	$60.00	$38.81
94375 Diagnostic testing in a pulmonary function lab	31	23	$60.00	$35.09
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	25	25	$135.00	$96.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	16	$130.00	$96.27
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	16	14	$35.00	$17.94

Medical Specialties & State Licenses

Allergy & Immunology Primary Specialty

NUCC Taxonomy Code: 207K00000X

State License TX K1922

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

1206104 (TX)

Hospital & Practice Group Affiliations

John Allen Van Wagoner, Md, Pa

5012 S Us Hwy 75, Denison, TX 750204594

Phone: 9034638400

Practice Associates & Co-Workers

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

8 Associated Practitioners

Jennifer Mcdonald

Pharmacist

NPI 1073020863

Katherine Rose , FNP

Nurse Practitioner - Family

NPI 1154973493

Family Nurse Practitioner

Hannah Kerman , FNP-C

Nurse Practitioner

NPI 1184368896

Family Nurse Practitioner (Certified)

Dr. Richard Herrscher , MD

Allergy & Immunology

NPI 1568425700

Doctor of Medicine (M.D.)

Courtney Brandt

Nurse Practitioner - Family

NPI 1720580459

Diana Kline , PA

Physician Assistant

NPI 1760427710

Physician Assistant

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active August 04, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location August 04, 2009

Registered at 3600 COMMUNICATIONS PKWY, SUITE 675, PLANO, TX 750938157 (Tel: 9724737544)

📍

Updated Business Mailing Address August 04, 2009

Registered at 8440 WALNUT HILL LN, SUITE 350, DALLAS, TX 752313833 (Tel: 2143731773)

👤

Provider Name / Credentials Updated August 04, 2009

Recorded as GREGG SANTILLI, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 04, 2009

Allergy & Immunology (License #K1922 in TX)

🟢

Initial NPI Registration & Enumeration November 08, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1023099082

Entity Type:

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

Enumeration Date: November 08, 2005

Last Update: August 04, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

8440 Walnut Hill Ln, Suite 350

Dallas, TX 752313833

Phone: 2143731773

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.