Dr. Joel S. Willis, DO
- Medicare services, 2024
- 238
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 561
- Hospital affiliations
- 1
- Industry payments
- $164
- Practice address
- 2150 Pennsylvania NW Ave, Washington, DC 20037
- Practice phone
- Call (202) 741-3350
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medical Faculty Associates, Inc
Washington, District of Columbia
Find Dr. Willis' professional email, personal email and mobile number
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Dr. Joel S. Willis is a family medicine physician in Washington, District of Columbia
Dr. Willis practices at Medical Faculty Associates, Inc in Washington, District of Columbia.
Dr. Willis' NPI, 1205169760, was assigned on September 15, 2009. Dr. Willis graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016. Dr. Willis holds Ohio license 35-050910.
- NPI
- 1205169760NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355488263
- NPI enumeration date
- September 15, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (202) 741-3350
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joel S. Willis practices at Medical Faculty Associates, Inc in Washington, District of Columbia
Dr. Willis' primary practice is Medical Faculty Associates, Inc, at 2150 Pennsylvania NW Ave, Washington, DC 20037 in District Of Columbia County. The practice phone is (202) 741-3350.
- Medical Faculty Associates, Inc2150 Pennsylvania NW Ave, Washington, DC 20037 · District Of Columbia CountyPhone(202) 741-3350
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joel S. Willis is affiliated with 4 sites of care and 2 medical groups
Dr. Willis' primary practice is Medical Faculty Associates, Inc in Washington, District of Columbia. Dr. Willis is also affiliated with The George Washington University Hospital. The medical group on file is The GW Medical Faculty Associates. Dmand AI also links Dr. Willis to 2 more group practices and clinics and 1 medical group, each 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. Joel S. Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willis practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medical Faculty Associates, Inc | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joel S. Willis is one of 241 family medicine physicians in District of Columbia
Family medicine is Dr. Willis' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Willis' licenses on file in 2 states: Ohio and District of Columbia.
Specialties and state licenses
- Family medicine, OhioPrimary
- District of Columbia license
Family medicine physicians near Dr. Willis
Counts of family medicine physicians 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. Joel S. Willis billed Medicare for 238 services in 2024
CMS data shows 238 Medicare services from Dr. Willis across 10 procedure codes in 2024, for 124 Medicare patients. Medicare paid $22,906 for them. Every service was in an office.
Dr. Willis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 282024: 97246%
- Office and hospital visits
- 2023: 1322024: 9727%
- Tests and treatments
- 2023: 02024: 27
- Lab and pathology
- 2023: 02024: 17
Dr. Willis compared with the District of Columbia median for family medicine physicians, 2024
- Dr. Willis
- District of Columbia median
- Medicare services
- 238vs 852.8 times
- Medicare patients
- 124vs 432.9 times
- Part D claims
- 294vs 300Close to median
Medians across 222 family medicine physicians in District of Columbia with Dmand AI profiles that report each measure.
Dr. Willis' 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willis and other family medicine physicians in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joel S. Willis treated 124 Medicare patients in 2024, average age 71
CMS counts 124 Medicare patients who saw Dr. Willis in 2024. The largest group is 65 to 74, with 61 patients. 64% of them have high blood pressure, and 52% have high cholesterol. 41% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Willis' median patient age at 48, with 54% women.
Dr. Willis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Willis' Medicare patients by sex, 2024
- Women6754%
- Men5746%
Chronic conditions among Dr. Willis' Medicare patients, 2024
- High blood pressure64%
- High cholesterol52%
- Arthritis36%
- Ischemic heart disease19%
- Mood disorders19%
- Chronic kidney disease18%
- Diabetes18%
- Depression15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Willis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women54%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joel S. Willis wrote 561 Medicare Part D claims in 2024
In 2024, Dr. Willis wrote 561 Medicare Part D claims for 94 patients. 95% of them were for generic drugs. CMS names the drug for 294 of them, across 13 drugs with 11 or more claims each, at $3,151 in total drug cost. In 2023, CMS named 144 claims across 6 drugs.
Dr. Willis' Part D claims by kind of drug, 2024
- Generic534 claims95%
- Brand-name and other27 claims5%
Dr. Willis' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1442024: 294104%
Drugs named by CMS: 13 in 2024, 6 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. Joel S. Willis offers telehealth to Medicare patients
Dr. Willis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Willis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joel S. Willis received $164 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to Dr. Willis from 7 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $33.
General payments to Dr. Willis by program year, 2017 to 2025
Companies that paid Dr. Willis the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joel S. Willis graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Willis graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joel S. 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 | 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) |
| 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 Dr. Joel S. 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 Dr. Joel S. Willis' NPI number?
Dr. Joel S. Willis' NPI number is 1205169760. It was assigned on September 15, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Joel S. Willis?
Dr. Joel S. Willis is a family medicine physician in Washington, District of Columbia. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Joel S. Willis practice?
Dr. Willis practices at 2150 Pennsylvania NW Ave, Washington, DC 20037. Dr. Willis' primary practice is Medical Faculty Associates, Inc in Washington, District of Columbia. Dmand AI also links Dr. Willis to 2 group practices and clinics and 1 medical group.
What is Dr. Joel S. Willis' office phone number?
The practice phone on file for Dr. Willis is (202) 741-3350.
What is Dr. Joel S. Willis' medical license number?
Dr. Willis holds Ohio license 35-050910, one of the licenses on file in 2 states.
Which states has Dr. Joel S. Willis been licensed in?
Dmand AI has state licenses on file for Dr. Willis in Ohio and District of Columbia.
Which hospitals is Dr. Joel S. Willis affiliated with?
Dr. Willis is affiliated with The George Washington University Hospital.
What medical group is Dr. Joel S. Willis part of?
Dr. Willis is linked to The GW Medical Faculty Associates. Dmand AI links Dr. Willis to 1 more medical group.
Does Dr. Joel S. Willis accept Medicare?
Yes. CMS data shows Dr. Willis billed Medicare for 238 services in 2024, and Dr. Willis accepts Medicare assignment.
Does Dr. Joel S. Willis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Willis as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Joel S. Willis see?
CMS counts 124 Medicare patients who saw Dr. Willis in 2024, with an average age of 71.
What services does Dr. Joel S. Willis bill to Medicare?
In 2024, Dr. Willis' most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).
Where did Dr. Joel S. Willis go to medical school?
Dr. Willis graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016.
What drugs does Dr. Joel S. Willis prescribe most?
In 2024 Medicare Part D data, Dr. Willis' most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Hydrochlorothiazide.
Has Dr. Joel S. Willis received payments from drug or device companies?
CMS Open Payments shows $164 in general payments to Dr. Willis from 7 companies from 2017 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Joel S. Willis been practicing?
Dr. Willis graduated from medical school in 2016, 10 years ago.
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