Charissa Holt Willis, NP
- Medicare patients, 2024
- 30
- Part D claims, 2024
- 238
- Hospital affiliations
- 1
- Industry payments
- $30
- Medical groups
- 6
- Practice address
- 990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830
- Practice phone
- Call (865) 835-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Charissa Willis' 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.
Charissa Holt Willis is a family nurse practitioner in Oak Ridge, Tennessee
Charissa Willis practices at Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee, part of Covenant Health.
Charissa Willis' NPI, 1760473649, was assigned on October 31, 2005. Charissa Willis graduated from University of Tennessee, Hsc, College of Medicine in 2002. Charissa Willis holds Tennessee license APN0000008233.
- NPI
- 1760473649NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628971165
- NPI enumeration date
- October 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 835-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Charissa Holt Willis practices at Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee
Charissa Willis' primary practice is Methodist Medical Center of Oak Ridge, at 990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830 in Anderson County. The practice phone is (865) 835-1000.
- Methodist Medical Center of Oak Ridge990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830 · Anderson CountyPhone(865) 835-1000
Source: Dmand AI Affiliation Data
Charissa Holt Willis is affiliated with 5 sites of care and 6 medical groups
Charissa Willis' primary practice is Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee, part of Covenant Health. The medical group on file is Covenant Medical Group. Dmand AI also links Charissa Willis to 5 more medical groups, 3 group practices and clinics and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Charissa Holt Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Charissa Willis practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist Medical Center of Oak Ridge | Available with a free account |
| +4 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Charissa Holt Willis is one of 7,243 family nurse practitioners in Tennessee
Family is Charissa Willis' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Charissa Willis is licensed in Tennessee.
Specialties and state licenses
- Family nurse practitioner, TennesseePrimary
Family nurse practitioners near Charissa Willis
Counts of family nurse practitioners 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
Charissa Holt Willis treated 30 Medicare patients in 2024, average age 72
CMS counts 30 Medicare patients who saw Charissa Willis in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 2.77, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Charissa Willis' median patient age at 74, with 52% women.
Charissa Willis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Charissa Willis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis73%
- Diabetes63%
- Heart failure50%
- Chronic kidney disease43%
- Atrial fibrillation40%
- COPD40%
Share of Medicare patients with each condition. A patient can have several.
Charissa Willis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Charissa Holt Willis wrote 238 Medicare Part D claims in 2024
In 2024, Charissa Willis wrote 238 Medicare Part D claims for 67 patients. 86% of them were for generic drugs.
Charissa Willis' Part D claims by kind of drug, 2024
- Generic204 claims86%
- Brand-name34 claims14%
Drug classes CMS tracks in Charissa Willis' Part D claims, 2024
- Antibiotics67%159 of 238 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
How Charissa Holt Willis takes part in Medicare
Charissa Willis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Charissa Holt Willis received $30 in industry payments in 2025
CMS Open Payments shows 1 general payment to Charissa Willis from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $30.
Companies that paid Charissa Willis the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Charissa Holt Willis graduated from University of Tennessee, Hsc, College of Medicine
Charissa Willis graduated from University of Tennessee, Hsc, College of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Charissa Holt Willis'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Charissa Holt Willis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Charissa Holt Willis' NPI number?
Charissa Holt Willis' NPI number is 1760473649. It was assigned on October 31, 2005, and it is active in the NPI Registry.
What does Charissa Holt Willis specialize in?
Charissa Holt Willis is a family nurse practitioner in Oak Ridge, Tennessee. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Charissa Holt Willis practice?
Charissa Willis practices at 990 Oak Ridge Turnpike Box 529, Oak Ridge, TN 37830. Charissa Willis' primary practice is Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee, part of Covenant Health. Dmand AI also links Charissa Willis to 5 medical groups, 3 group practices and clinics and 1 home health agency.
What is Charissa Holt Willis' office phone number?
The practice phone on file for Charissa Willis is (865) 835-1000.
What is Charissa Holt Willis' medical license number?
Charissa Willis holds Tennessee license APN0000008233.
Which hospitals is Charissa Holt Willis affiliated with?
Charissa Willis practices at Methodist Medical Center of Oak Ridge in Oak Ridge, Tennessee.
What medical group is Charissa Holt Willis part of?
Charissa Willis is linked to Covenant Medical Group. Dmand AI links Charissa Willis to 5 more medical groups.
Does Charissa Holt Willis accept Medicare?
Yes. CMS lists Charissa Willis as accepting Medicare assignment.
How many Medicare patients does Charissa Holt Willis see?
CMS counts 30 Medicare patients who saw Charissa Willis in 2024, with an average age of 72.
Where did Charissa Holt Willis go to medical school?
Charissa Willis graduated from University of Tennessee, Hsc, College of Medicine in 2002.
Has Charissa Holt Willis received payments from drug or device companies?
CMS Open Payments shows $30 in general payments to Charissa Willis from 1 company from 2025 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Charissa Holt Willis been practicing?
Charissa Willis graduated from medical school in 2002, 24 years ago.
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