Angiotensin-Converting Enzyme InhibitorsAngiotensin Receptor AntagonistsEvidence-Based Medicine
Dr. David Clark Flack, DO
NPI1730384298PAC ID0547313306
- Medicare services, 2024
- 5,379
- Medicare patients, 2024
- 625
- Part D claims, 2024
- 12,147
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 104 Selma Dr, Winchester, VA 22601
- Practice phone
- Call (540) 678-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Selma Medical Assoc Inc
Winchester, Virginia
Find Dr. Flack'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. David Clark Flack is a family medicine physician in Winchester, Virginia
Dr. Flack practices at Selma Medical Assoc Inc in Winchester, Virginia.
Dr. Flack's NPI, 1730384298, was assigned on June 15, 2007. Dr. Flack graduated from West Virginia School of Osteopathic Medicine in 2006. Dr. Flack holds Virginia license 0102202200.
NPI and contact details
- NPI
- 1730384298NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547313306
- NPI enumeration date
- June 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (540) 678-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Clark Flack practices at Selma Medical Assoc Inc in Winchester, Virginia
Dr. Flack's primary practice is Selma Medical Assoc Inc, at 104 Selma Dr, Winchester, VA 22601 in Winchester City. The practice phone is (540) 678-2800.
- Selma Medical Assoc Inc104 Selma Dr, Winchester, VA 22601 · Winchester CityPhone(540) 678-2800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Clark Flack is affiliated with 10 sites of care and 3 medical groups
Dr. Flack's primary practice is Selma Medical Assoc Inc in Winchester, Virginia. Dr. Flack is also affiliated with Winchester Medical Center. The medical group on file is Legacy Healthcare Services. Dmand AI also links Dr. Flack to 3 more hospitals, 2 group practices and clinics, 2 medical groups, 1 home health agency, 1 therapy and rehab clinic and 1 skilled nursing facility, each named with a free account.
Selma Medical Assoc IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Clark Flack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Flack practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Selma Medical Assoc Inc | Available with a free account |
| +9 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Clark Flack is one of 3,459 family medicine physicians in Virginia
Family medicine is Dr. Flack's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Flack is licensed in Virginia.
Specialties and state licenses
- Family medicine, VirginiaPrimary
Family medicine physicians near Dr. Flack
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. David Clark Flack billed Medicare for 5,379 services in 2024
CMS data shows 5,379 Medicare services from Dr. Flack across 24 procedure codes in 2024, for 625 Medicare patients. Medicare paid $197,430 for them. Every service was in an office.
Medicare services, 20245,379
Medicare patients625
Paid by Medicare$197,430
Procedure codes24
Dr. Flack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,3592024: 2,4594%
- Other services
- 2023: 5772024: 1,09590%
- Office and hospital visits
- 2023: 7052024: 94534%
- Surgery
- 2023: 6952024: 7204%
- Tests and treatments
- 2023: 2192024: 13339%
- Imaging
- 2023: 272024: 27No change
- Drugs given in the office
- 2023: 7202024: 0100%
Dr. Flack compared with the Virginia median for family medicine physicians, 2024
- Dr. Flack
- Virginia median
- Medicare services
- 5,379vs 5439.9 times
- Medicare patients
- 625vs 2172.9 times
- Part D claims
- 11,400vs 72115.8 times
Medians across 3,387 family medicine physicians in Virginia with Dmand AI profiles that report each measure.
Dr. Flack'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. Flack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Flack and other family medicine physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Clark Flack treated 625 Medicare patients in 2024, average age 74
CMS counts 625 Medicare patients who saw Dr. Flack in 2024. The largest group is 65 to 74, with 325 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Flack's median patient age at 66, with 41% women.
Medicare patients, 2024625
Average age74
Average risk score0.98
Also on Medicaid3%
Dr. Flack's Medicare patients by age, 2024
Dr. Flack's Medicare patients by sex, 2024
- Women25841%
- Men36759%
Chronic conditions among Dr. Flack's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis34%
- Diabetes25%
- Chronic kidney disease23%
- Ischemic heart disease21%
- Anxiety20%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Flack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Clark Flack wrote 12,147 Medicare Part D claims in 2024
In 2024, Dr. Flack wrote 12,147 Medicare Part D claims for 879 patients. 91% of them were for generic drugs. CMS names the drug for 11,400 of them, across 159 drugs with 11 or more claims each, at $635,734 in total drug cost. In 2023, CMS named 9,720 claims across 150 drugs.
Part D claims, 202412,147
Drugs named by CMS159
Total drug cost$635,734
Part D patients879
Dr. Flack's Part D claims by kind of drug, 2024
- Generic11,100 claims91%
- Brand-name909 claims7%
- Other138 claims1%
Dr. Flack'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. Flack's Part D claims, 2024
- Opioids5%567 of 12,147 claims
- Antibiotics1%106 of 12,147 claims
- Antipsychotics, patients 65 and over0%56 of 12,147 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: 9,7202024: 11,40017%
Drugs named by CMS: 159 in 2024, 150 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
How Dr. David Clark Flack takes part in Medicare
Dr. Flack accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David Clark Flack has 1 publication on record
Dmand AI links 1 paper to Dr. Flack. Dr. Flack's most frequent co-authors are John William Kerns, MD, Larisa G. Martin, MD and Ramashilpa Sudireddy, MD.
Papers1
Dr. Flack's most frequent co-authors
- John William Kerns, MD1 shared paper
- Larisa G. Martin, MD1 shared paper
- Ramashilpa Sudireddy, MD1 shared paper
Recent publications by Dr. Flack
See who Dr. Flack researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Flack works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Clark Flack received $3,112 in industry payments in 2018
CMS Open Payments shows 3 general payments to Dr. Flack from 1 drug or device company in 2018. Travel and lodging make up the largest share, 100% of the total. Actelion Pharmaceuticals US, Inc. paid the most, $3,112.
Companies that paid Dr. Flack the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Clark Flack graduated from West Virginia School of Osteopathic Medicine
Dr. Flack graduated from West Virginia School of Osteopathic Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Clark Flack'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David Clark Flack
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. David Clark Flack's NPI number?
Dr. David Clark Flack's NPI number is 1730384298. It was assigned on June 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David Clark Flack?
Dr. David Clark Flack is a family medicine physician in Winchester, Virginia. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David Clark Flack practice?
Dr. Flack practices at 104 Selma Dr, Winchester, VA 22601. Dr. Flack's primary practice is Selma Medical Assoc Inc in Winchester, Virginia. Dmand AI also links Dr. Flack to 3 hospitals, 2 group practices and clinics, 2 medical groups, 1 home health agency, 1 therapy and rehab clinic and 1 skilled nursing facility.
What is Dr. David Clark Flack's office phone number?
The practice phone on file for Dr. Flack is (540) 678-2800.
What is Dr. David Clark Flack's medical license number?
Dr. Flack holds Virginia license 0102202200.
Which hospitals is Dr. David Clark Flack affiliated with?
Dr. Flack is affiliated with Winchester Medical Center. Dmand AI links Dr. Flack to 3 more hospitals.
What medical group is Dr. David Clark Flack part of?
Dr. Flack is linked to Legacy Healthcare Services. Dmand AI links Dr. Flack to 2 more medical groups.
Does Dr. David Clark Flack accept Medicare?
Yes. CMS data shows Dr. Flack billed Medicare for 5,379 services in 2024, and Dr. Flack accepts Medicare assignment.
How many Medicare patients does Dr. David Clark Flack see?
CMS counts 625 Medicare patients who saw Dr. Flack in 2024, with an average age of 74.
What services does Dr. David Clark Flack bill to Medicare?
In 2024, Dr. Flack's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and lab and pathology test (80053).
Show 6 more questionsShow fewer questions
Where did Dr. David Clark Flack go to medical school?
Dr. Flack graduated from West Virginia School of Osteopathic Medicine in 2006.
What drugs does Dr. David Clark Flack prescribe most?
In 2024 Medicare Part D data, Dr. Flack's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. David Clark Flack received payments from drug or device companies?
CMS Open Payments shows $3,112 in general payments to Dr. Flack from 1 company from 2018 to 2018. The largest total came from Actelion Pharmaceuticals US, Inc.
How long has Dr. David Clark Flack been practicing?
Dr. Flack graduated from medical school in 2006, 20 years ago.
Does Dr. David Clark Flack do research?
Dmand AI links 1 publication to Dr. Flack.
Who does Dr. David Clark Flack publish with?
Dr. Flack's most frequent co-authors are John William Kerns, MD (1 shared paper), Larisa G. Martin, MD (1 shared paper) and Ramashilpa Sudireddy, MD (1 shared paper).
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