Karen K. Ballen, MD
Hematology (Internal Medicine) Physician · Falls Church, VA
Karen K. Ballen, MD is a hematology (internal medicine) physician with a practice address in Falls Church, Virginia, and NPI 1821089558, issued on Nov 2, 2005. Check the license (Virginia 0101261336, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Karen K. Ballen
- Credential
- MD
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License numbers
- 0101261336 VA
70975 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3300 Gallows RD, Falls Church, VA 22042
- Phone
- (571) 423-5699
- Enumerated
- Nov 2, 2005
- Record last updated
- Aug 8, 2023
- Medicaid ID
- 3092046 MA
- Medicare enrollment
- Enrolled (PECOS I20170220001486); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 21 in Virginia → Look up another NPI →
Also registered at 3300 Gallows RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmed Sherif Abdel Meguid, MDPsychiatry Physician1700956307
- Alaa AbdelghaniPediatrics Physician1225523228
- Sami Abdul Jawad, M.D.Critical Care Medicine (Internal Medicine) Physician1487930905
- Ahmad Abdul-Aziz, M.D.Critical Care Medicine (Internal Medicine) Physician1285045518
- Sarah Abduljabbar, MDSurgery Physician1598659559
- Nuha Abdurahman, D.OInternal Medicine Physician1497155527
Verify Karen K. Ballen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101261336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average hematology (internal medicine) physician in 2024
529 Medicare Part D claims for 54 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Acyclovir87 claims
- Jakafi40 claims
- Prednisone33 claims
- Pantoprazole Sodium29 claims
- Atovaquone27 claims
- Sulfamethoxazole-Trimethoprim19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,454.16
7 payments; by number, the most common kind was food and beverage; the largest payer was National Marrow Donor Program. The 721 providers of this specialty with any payment received $13,778.35 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Centra Medical Group LLCLynchburg, VA
- University OF Virginia Physicians GroupCharlottesville, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen K. Ballen among 21 hematology (internal medicine) physician records in Virginia
Karen K. Ballen, MD is one of 21 hematology (internal medicine) physician records with a practice address in Virginia. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1982 · median 2010 among the 17 with a school on file
- Record last updated2023 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in Virginia
There are 21 hematology (internal medicine) physician records in Virginia.
All 21 in Virginia → Every provider in Falls Church → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Najeebah Bade, MDFalls Church, VA 220421043500150
- Ashley Hanlon, M.D.Falls Church, VA 220421295153005
- Nassar Khan, M.D.Fairfax, VA 220331396708608
- Germame Ajebo, MDFairfax, VA 220311396183661
- Kathryn Cappell, MDFairfax, VA 220311366785255
- Perrin Jhaveri, MDFairfax, VA 220311285990382
- Yamini Krishna Kathari, MDFairfax, VA 220311629574678
- Stephen Medlin, DOFairfax, VA 220311134195159
Common questions
What is Karen K. Ballen, MD's NPI number?
Karen K. Ballen, MD's National Provider Identifier (NPI) is 1821089558, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karen K. Ballen, MD located?
The NPPES record lists a practice address at 3300 Gallows RD, Falls Church, VA, 22042. Phone: (571) 423-5699. Providers update this record themselves, so call before visiting.
How can I verify Karen K. Ballen, MD's license?
NPPES lists Virginia license number 0101261336, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen K. Ballen, MD prescribe under Medicare Part D?
In 2024, Karen K. Ballen, MD had 529 Medicare Part D claims for 54 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. Part D covers Medicare prescriptions only.
What is Karen K. Ballen, MD's MIPS final score?
The 2023 MIPS final score is 79.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.