Dr. Gregg M. Santilli, MD
- Medicare services, 2024
- 4,506
- Medicare patients, 2024
- 193
- Part D claims, 2024
- 501
- Industry payments
- $98,076
- Affiliated sites
- 1
- Practice address
- 6101 Windcom Ct, Plano, TX 75093
- Practice phone
- Call (972) 398-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southwest Allergy and Asthma Center
Plano, Texas
Find Dr. Santilli's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregg M. Santilli is an allergist and immunologist in Plano, Texas
Dr. Santilli practices at Southwest Allergy and Asthma Center in Plano, Texas.
Dr. Santilli's NPI, 1023099082, was assigned on November 8, 2005. Dr. Santilli graduated from Ohio State College of Medicine in 1989. Dr. Santilli holds Texas license K1922.
- NPI
- 1023099082NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779591607
- NPI enumeration date
- November 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (972) 398-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregg M. Santilli practices at Southwest Allergy and Asthma Center in Plano, Texas
Dr. Santilli's primary practice is Southwest Allergy and Asthma Center, at 6101 Windcom Ct, Plano, TX 75093 in Collin County. The practice phone is (972) 398-3500.
- Southwest Allergy and Asthma Center6101 Windcom Ct, Plano, TX 75093 · Collin CountyPhone(972) 398-3500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregg M. Santilli is affiliated with 2 sites of care and 1 medical group
Dr. Santilli's primary practice is Southwest Allergy and Asthma Center in Plano, Texas. The medical group on file is Southwest Allergy & Asthma Center. Dmand AI also links Dr. Santilli to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregg M. Santilli's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Santilli practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southwest Allergy and Asthma Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregg M. Santilli is one of 288 allergists and immunologists in Texas
Allergy and immunology is Dr. Santilli's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Santilli is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Santilli's licenses on file in 2 states: Texas and Ohio.
Specialties and state licenses
- Allergy and immunology, TexasPrimary
- Ohio license
Clinical focus
Dmand AI lists acute sinusitis, asthma, chronic nasal allergies, hives and immune deficiency disease among the conditions Dr. Santilli treats.
Allergists and immunologists near Dr. Santilli
Counts of allergists and immunologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregg M. Santilli billed Medicare for 4,506 services in 2024
CMS data shows 4,506 Medicare services from Dr. Santilli across 10 procedure codes in 2024, for 193 Medicare patients. Medicare paid $53,454 for them. Every service was in an office.
Dr. Santilli's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,8002024: 4,11947%
- Office and hospital visits
- 2023: 2222024: 29734%
- Other services
- 2023: 02024: 90
Dr. Santilli compared with the Texas median for allergists and immunologists, 2024
- Dr. Santilli
- Texas median
- Medicare services
- 4,506vs 2,0882.2 times
- Medicare patients
- 193vs 12456% above
- Part D claims
- 379vs 32915% above
Medians across 257 allergists and immunologists in Texas with Dmand AI profiles that report each measure.
Dr. Santilli's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Santilli?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Santilli and other allergists and immunologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregg M. Santilli treated 193 Medicare patients in 2024, average age 74
CMS counts 193 Medicare patients who saw Dr. Santilli in 2024. The largest group is 65 to 74, with 101 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Santilli's median patient age at 37, with 54% women.
Dr. Santilli's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Santilli's Medicare patients by sex, 2024
- Women12263%
- Men7137%
Chronic conditions among Dr. Santilli's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis49%
- Asthma45%
- Anxiety31%
- Mood disorders26%
- Ischemic heart disease25%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Santilli's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregg M. Santilli wrote 501 Medicare Part D claims in 2024
In 2024, Dr. Santilli wrote 501 Medicare Part D claims for 129 patients. 59% of them were for generic drugs. CMS names the drug for 379 of them, across 13 drugs with 11 or more claims each, at $167,877 in total drug cost. In 2023, CMS named 255 claims across 13 drugs.
Dr. Santilli's Part D claims by kind of drug, 2024
- Generic296 claims59%
- Brand-name205 claims41%
Dr. Santilli's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Santilli's Part D claims, 2024
- Antibiotics6%30 of 501 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2552024: 37949%
Drugs named by CMS: 13 in 2024, 13 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Gregg M. Santilli offers telehealth to Medicare patients
Dr. Santilli accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Santilli as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gregg M. Santilli received $98,076 in industry payments from 2016 to 2025
CMS Open Payments shows 1,086 general payments to Dr. Santilli from 45 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 68% of the total. AstraZeneca Pharmaceuticals LP paid the most, $63,837.
General payments to Dr. Santilli by program year, 2016 to 2025
General payments to Dr. Santilli by kind, 2016 to 2025
- Speaker and faculty fees$67,05068%
- Food and beverage$24,07225%
- Consulting fees$4,0004%
- Honoraria$1,9752%
- Other$9791%
Companies that paid Dr. Santilli the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregg M. Santilli has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Santilli, most recently Texas Super Doctor Hall of Fame in 2019.
Awards and honors for Dr. Santilli
- 2019
- Texas Super Doctor Hall of Fame
- Undated
- AAAAI Fellow
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Gregg M. Santilli graduated from Ohio State College of Medicine
Dr. Santilli graduated from Ohio State College of Medicine in 1989. Dr. Santilli is a member of AAAAI.
- Medical school
- Board certified in allergy & immunology
Source: Dmand AI Professional Profile Data
Dr. Gregg M. Santilli accepts plans from 22 insurance carriers
Dr. Santilli is in network with 22 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Humana
- Alliant Health Plans
- +14 more carriersWith a free account
Plan types Dr. Santilli accepts, by number of carriers
- PPO14
- HMO12
- Medicare10
- POS6
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregg M. Santilli's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregg M. Santilli
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregg M. Santilli's NPI number?
Dr. Gregg M. Santilli's NPI number is 1023099082. It was assigned on November 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregg M. Santilli?
Dr. Gregg M. Santilli is an allergist and immunologist in Plano, Texas. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Gregg M. Santilli practice?
Dr. Santilli practices at 6101 Windcom Ct, Plano, TX 75093. Dr. Santilli's primary practice is Southwest Allergy and Asthma Center in Plano, Texas. Dmand AI also links Dr. Santilli to 1 group practice or clinic.
What is Dr. Gregg M. Santilli's office phone number?
The practice phone on file for Dr. Santilli is (972) 398-3500.
What is Dr. Gregg M. Santilli's medical license number?
Dr. Santilli holds Texas license K1922, one of the licenses on file in 2 states.
Which states has Dr. Gregg M. Santilli been licensed in?
Dmand AI has state licenses on file for Dr. Santilli in Texas (1997 to 2026) and Ohio (1992 to 1998).
What medical group is Dr. Gregg M. Santilli part of?
Dr. Santilli is linked to Southwest Allergy & Asthma Center.
Does Dr. Gregg M. Santilli accept Medicare?
Yes. CMS data shows Dr. Santilli billed Medicare for 4,506 services in 2024, and Dr. Santilli accepts Medicare assignment.
Does Dr. Gregg M. Santilli offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Santilli as offering telehealth services.
How many Medicare patients does Dr. Gregg M. Santilli see?
CMS counts 193 Medicare patients who saw Dr. Santilli in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Gregg M. Santilli board certified?
Yes. Dr. Santilli is board certified in allergy & immunology by the American Board of Allergy and Immunology.
What services does Dr. Gregg M. Santilli bill to Medicare?
In 2024, Dr. Santilli's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95165) and allergy test or treatment (95117).
Where did Dr. Gregg M. Santilli go to medical school?
Dr. Santilli graduated from Ohio State College of Medicine in 1989.
What drugs does Dr. Gregg M. Santilli prescribe most?
In 2024 Medicare Part D data, Dr. Santilli's most prescribed drugs by claims were Montelukast Sodium, Trelegy Ellipta and Azelastine HCl.
Has Dr. Gregg M. Santilli received payments from drug or device companies?
CMS Open Payments shows $98,076 in general payments to Dr. Santilli from 45 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Gregg M. Santilli been practicing?
Dr. Santilli graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Gregg M. Santilli accept?
Dr. Santilli is in network with 22 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.
Selling to allergy and immunology practices?
See allergists and immunologists in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card