Theresa Marie Gillis, PA-C
- Medicare patients, 2024
- 584
- Part D claims, 2024
- 1,176
- MIPS score, 2024
- 83
- Hospital affiliations
- 1
- Industry payments
- $185
- Practice address
- 400 West Seventh St, Frederick, MD 21701
- Practice phone
- Call (240) 566-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Theresa Gillis' 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.
Theresa Marie Gillis is a physician assistant in Frederick, Maryland
Theresa Gillis practices at Frederick Health Hospital in Frederick, Maryland, part of Frederick Health.
Theresa Gillis' NPI, 1306024476, was assigned on January 31, 2008. Theresa Gillis holds Maryland license C0003401.
- NPI
- 1306024476NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173609286
- NPI enumeration date
- January 31, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (240) 566-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Theresa Marie Gillis practices at Frederick Health Hospital in Frederick, Maryland
Theresa Gillis' primary practice is Frederick Health Hospital, at 400 West Seventh St, Frederick, MD 21701 in Frederick County. The practice phone is (240) 566-3300.
- Frederick Health Hospital400 West Seventh St, Frederick, MD 21701 · Frederick CountyPhone(240) 566-3300
Source: Dmand AI Affiliation Data
Theresa Marie Gillis is affiliated with 1 site of care and 1 medical group
Theresa Gillis' primary practice is Frederick Health Hospital in Frederick, Maryland, part of Frederick Health. The medical group on file is Frederick Health Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Theresa Marie Gillis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Theresa Gillis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Frederick Health Hospital | 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 Frederick Health and 6.2K+ hospitals, with verified contacts in the same login.
Theresa Marie Gillis is one of 2,452 physician assistants in Maryland
Physician assistant is Theresa Gillis' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Theresa Gillis is licensed in Maryland.
Specialties and state licenses
- Physician assistant, MarylandPrimary
Physician assistants near Theresa Gillis
Counts of physician assistants 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
Theresa Marie Gillis treated 584 Medicare patients in 2024, average age 76
CMS counts 584 Medicare patients who saw Theresa Gillis in 2024. The largest group is 65 to 74, with 255 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Theresa Gillis' median patient age at 67, with 37% women.
Theresa Gillis' Medicare patients by age, 2024
Theresa Gillis' Medicare patients by sex, 2024
- Women20836%
- Men37664%
Chronic conditions among Theresa Gillis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease38%
- Diabetes36%
- Anxiety26%
- Mood disorders26%
- Cancer25%
Share of Medicare patients with each condition. A patient can have several.
Theresa Gillis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women37%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Theresa Marie Gillis wrote 1,176 Medicare Part D claims in 2024
In 2024, Theresa Gillis wrote 1,176 Medicare Part D claims for 439 patients. 92% of them were for generic drugs.
Theresa Gillis' Part D claims by kind of drug, 2024
- Generic1,087 claims92%
- Brand-name89 claims8%
Drug classes CMS tracks in Theresa Gillis' Part D claims, 2024
- Antibiotics14%159 of 1,176 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Theresa Marie Gillis scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Theresa Gillis for performance year 2024, reported as part of a group. Theresa Gillis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Theresa Gillis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Theresa Gillis' MIPS scores, performance year 2024
- 83of 100Final score
- 75.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 68of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Theresa Marie Gillis received $185 in industry payments in 2025
CMS Open Payments shows 8 general payments to Theresa Gillis from 5 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Sumitomo Pharma America, Inc. paid the most, $61.
Companies that paid Theresa Gillis the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Theresa Marie Gillis'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 (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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Theresa Marie Gillis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Theresa Marie Gillis' NPI number?
Theresa Marie Gillis' NPI number is 1306024476. It was assigned on January 31, 2008, and it is active in the NPI Registry.
What does Theresa Marie Gillis specialize in?
Theresa Marie Gillis is a physician assistant in Frederick, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Theresa Marie Gillis practice?
Theresa Gillis practices at 400 West Seventh St, Frederick, MD 21701. Theresa Gillis' primary practice is Frederick Health Hospital in Frederick, Maryland, part of Frederick Health.
What is Theresa Marie Gillis' office phone number?
The practice phone on file for Theresa Gillis is (240) 566-3300.
What is Theresa Marie Gillis' medical license number?
Theresa Gillis holds Maryland license C0003401.
Which hospitals is Theresa Marie Gillis affiliated with?
Theresa Gillis practices at Frederick Health Hospital in Frederick, Maryland.
What medical group is Theresa Marie Gillis part of?
Theresa Gillis is linked to Frederick Health Medical Group.
Does Theresa Marie Gillis accept Medicare?
Yes. CMS lists Theresa Gillis as accepting Medicare assignment.
Does Theresa Marie Gillis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Theresa Gillis as offering telehealth services.
What is Theresa Marie Gillis' MIPS score?
Theresa Gillis' MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
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How many Medicare patients does Theresa Marie Gillis see?
CMS counts 584 Medicare patients who saw Theresa Gillis in 2024, with an average age of 76.
Has Theresa Marie Gillis received payments from drug or device companies?
CMS Open Payments shows $185 in general payments to Theresa Gillis from 5 companies from 2025 to 2025. The largest total came from Sumitomo Pharma America, Inc.
How long has Theresa Marie Gillis been practicing?
Theresa Gillis graduated from medical school in 1997, 29 years ago.
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