Tonya M. Terwilliger, PA-C

  • Leesburg, FL
  • Physician assistant
NPI1639258072PAC ID8325140791
Medicare services, 2024
4,781
Medicare patients, 2024
1,089
Part D claims, 2024
933
MIPS score, 2024
91
Industry payments
$845
Practice address
27950 Us-27, Leesburg, FL 34748
Practice phone
Call (352) 350-5230
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Macinnis Dermatology

Leesburg, Florida

See all 5 affiliations

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Tonya M. Terwilliger is a physician assistant in Leesburg, Florida

Tonya Terwilliger practices at Macinnis Dermatology in Leesburg, Florida.

Tonya Terwilliger's NPI, 1639258072, was assigned on November 5, 2006. Tonya Terwilliger holds Florida license PA9104043.

NPI and contact details
Medicare PAC ID
8325140791
NPI enumeration date
November 5, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(352) 350-5230
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
49
Medical school graduation
2003

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Tonya M. Terwilliger practices at Macinnis Dermatology in Leesburg, Florida

Tonya Terwilliger's primary practice is Macinnis Dermatology, at 27950 Us-27, Leesburg, FL 34748 in Lake County. The practice phone is (352) 350-5230.

  • Macinnis Dermatology
    27950 Us-27, Leesburg, FL 34748 · Lake CountyPhone(352) 350-5230

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Tonya M. Terwilliger is affiliated with 3 sites of care and 2 medical groups

Tonya Terwilliger's primary practice is Macinnis Dermatology in Leesburg, Florida. The medical group on file is MacInnis Dermatology. Dmand AI also links Tonya Terwilliger to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Tonya Terwilliger

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Tonya M. Terwilliger's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Tonya Terwilliger practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Macinnis DermatologyAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Tonya M. Terwilliger is one of 7,899 physician assistants in Florida

Physician assistant is Tonya Terwilliger's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Tonya Terwilliger is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Tonya Terwilliger is licensed in Florida.

Specialties and state licenses

  • Physician assistant, FloridaPrimaryLicense PA9104043 · taxonomy 363A00000X

Clinical focus

Dmand AI lists acne, acute skin infection, ankle or foot injury, benign or precancerous skin growths, cold sores or genital herpes, contact dermatitis, corns and calluses and itchy rashes among the conditions Tonya Terwilliger treats.

Physician assistants near Tonya Terwilliger

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

Tonya M. Terwilliger billed Medicare for 4,781 services in 2024

CMS data shows 4,781 Medicare services from Tonya Terwilliger across 18 procedure codes in 2024, for 1,089 Medicare patients. Medicare paid $179,119 for them. Every service was in an office.

Medicare services, 20244,781
Medicare patients1,089
Paid by Medicare$179,119
Procedure codes18

Tonya Terwilliger's Medicare services by type, 2024

  1. Surgery3,259
  2. Office and hospital visits1,522

Tonya Terwilliger compared with the Florida median for physician assistants, 2024

  • Tonya Terwilliger
  • Florida median
Medicare services
4,781vs 32114.9 times
Medicare patients
1,089vs 1308.4 times
Part D claims
785vs 3262.4 times

Medians across 5,430 physician assistants in Florida with Dmand AI profiles that report each measure.

Tonya Terwilliger'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.

See all procedures by Tonya Terwilliger

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Tonya M. Terwilliger treated 1,089 Medicare patients in 2024, average age 77

CMS counts 1,089 Medicare patients who saw Tonya Terwilliger in 2024. The largest group is 75 to 84, with 561 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.10, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Tonya Terwilliger's median patient age at 76, with 58% women.

Medicare patients, 20241,089
Average age77
Average risk score1.10

Tonya Terwilliger's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Tonya Terwilliger's Medicare patients by sex, 2024

  • Women65360%
  • Men43640%

Chronic conditions among Tonya Terwilliger's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis48%
  4. Ischemic heart disease36%
  5. Chronic kidney disease32%
  6. Diabetes25%
  7. Anxiety21%
  8. Mood disorders21%

Share of Medicare patients with each condition. A patient can have several.

Tonya Terwilliger's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Tonya M. Terwilliger wrote 933 Medicare Part D claims in 2024

In 2024, Tonya Terwilliger wrote 933 Medicare Part D claims for 518 patients. 95% of them were for generic drugs. CMS names the drug for 785 of them, across 16 drugs with 11 or more claims each, at $104,878 in total drug cost.

Part D claims, 2024933
Drugs named by CMS16
Total drug cost$104,878
Part D patients518

Tonya Terwilliger's Part D claims by kind of drug, 2024

  • Generic885 claims95%
  • Brand-name48 claims5%

Tonya Terwilliger'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 Tonya Terwilliger's Part D claims, 2024

  • Antibiotics11%99 of 933 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Tonya Terwilliger

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

Tonya M. Terwilliger scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Tonya Terwilliger for performance year 2024, reported as part of a group. Tonya Terwilliger accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Tonya Terwilliger's MIPS scores, performance year 2024

  • 91of 100Final score
  • 99.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 72of 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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Tonya M. Terwilliger received $845 in industry payments from 2024 to 2025

CMS Open Payments shows 42 general payments to Tonya Terwilliger from 14 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $189.

General payments to Tonya Terwilliger by program year, 2024 to 2025

Companies that paid Tonya Terwilliger the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Tonya Terwilliger

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Tonya M. Terwilliger is board certified in certified physician assistant

  1. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Tonya M. Terwilliger's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Tonya M. Terwilliger

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Tonya M. Terwilliger's NPI number?

Tonya M. Terwilliger's NPI number is 1639258072. It was assigned on November 5, 2006, and it is active in the NPI Registry.

What does Tonya M. Terwilliger specialize in?

Tonya M. Terwilliger is a physician assistant in Leesburg, Florida. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Tonya M. Terwilliger practice?

Tonya Terwilliger practices at 27950 Us-27, Leesburg, FL 34748. Tonya Terwilliger's primary practice is Macinnis Dermatology in Leesburg, Florida. Dmand AI also links Tonya Terwilliger to 2 group practices and clinics and 1 medical group.

What is Tonya M. Terwilliger's office phone number?

The practice phone on file for Tonya Terwilliger is (352) 350-5230.

What is Tonya M. Terwilliger's medical license number?

Tonya Terwilliger holds Florida license PA9104043.

What medical group is Tonya M. Terwilliger part of?

Tonya Terwilliger is linked to MacInnis Dermatology. Dmand AI links Tonya Terwilliger to 1 more medical group.

Does Tonya M. Terwilliger accept Medicare?

Yes. CMS data shows Tonya Terwilliger billed Medicare for 4,781 services in 2024, and Tonya Terwilliger accepts Medicare assignment.

What is Tonya M. Terwilliger's MIPS score?

Tonya Terwilliger's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

How many Medicare patients does Tonya M. Terwilliger see?

CMS counts 1,089 Medicare patients who saw Tonya Terwilliger in 2024, with an average age of 77.

Is Tonya M. Terwilliger board certified?

Yes. Tonya Terwilliger is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

Show 4 more questionsShow fewer questions

What services does Tonya M. Terwilliger bill to Medicare?

In 2024, Tonya Terwilliger's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).

What drugs does Tonya M. Terwilliger prescribe most?

In 2024 Medicare Part D data, Tonya Terwilliger's most prescribed drugs by claims were Mupirocin, Triamcinolone Acetonide and Ketoconazole.

Has Tonya M. Terwilliger received payments from drug or device companies?

CMS Open Payments shows $845 in general payments to Tonya Terwilliger from 14 companies from 2024 to 2025. The largest total came from Abbvie Inc.

How long has Tonya M. Terwilliger been practicing?

Tonya Terwilliger graduated from medical school in 2003, 23 years ago.

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