Kathleen Marie Langan, M.D.
Family Medicine Physician · Fairfax, VA
Kathleen Marie Langan, M.D. is a family medicine physician with a practice address in Fairfax, Virginia, and NPI 1538455001, issued on Jun 23, 2011. Check the license (Virginia 0116024019, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Kathleen Marie Langan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 0116024019 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3650 Joseph Siewick Dr Ste 400, Fairfax, VA 22033
- Phone
- (703) 391-2020
- Enumerated
- Jun 23, 2011
- Record last updated
- Nov 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20121009000708); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 4,137 in Virginia → Look up another NPI →
Also registered at 3650 Joseph Siewick Dr Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sally Abilmona, DOFamily Medicine Physician1013692300
- Rose Alldredge-Brown, PA-CPhysician Assistant1790250439
- Nana Esi Apedoe, DNP, AGPCNP-BCNurse Practitioner1952785313
- Neha Balapal, MDFamily Medicine Physician1609763580
- Megan Bryant, DOFamily Medicine Physician1841920279
- Erica Campbell, M.D.Geriatric Medicine (Family Medicine) Physician1528300282
Verify Kathleen Marie Langan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0116024019Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average family medicine physician in 2024
1,149 Medicare Part D claims for 110 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium130 claims
- Hydrochlorothiazide52 claims
- Losartan Potassium49 claims
- Lisinopril41 claims
- Levothyroxine Sodium40 claims
- Metoprolol Succinate36 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.
Bills Medicare through one group practice
- Inova Physician Partners LLCFairfax, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Marie Langan among 4,137 family medicine physician records in Virginia
Kathleen Marie Langan, M.D. is one of 4,137 family medicine physician records with a practice address in Virginia. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.
- NPI issued2011 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2004 among the 2,426 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
189 family medicine physician records list a practice address in Fairfax
They are 189 of the 6,584 NPPES records with a practice address in Fairfax, and 4,137 family medicine physician records in Virginia.
All 4,137 in Virginia → Every provider in Fairfax → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lee Blecher, MDFairfax, VA 220331336133875
- Susan Burroughs, MDFairfax, VA 220331518951052
- Su Choi, M.D.Fairfax, VA 220331740289719
- Craig Clark, MDFairfax, VA 220331407840945
- Katherine Cole, MDFairfax, VA 220331508850660
- Thomas Ehrlich, MDFairfax, VA 220331447244181
- Alexander Krist, MDFairfax, VA 220331629062872
- Terence McCormally, MDFairfax, VA 220331255325890
Common questions
What is Kathleen Marie Langan, M.D.'s NPI number?
Kathleen Marie Langan, M.D.'s National Provider Identifier (NPI) is 1538455001, issued on Jun 23, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Marie Langan, M.D. located?
The NPPES record lists a practice address at 3650 Joseph Siewick Dr Ste 400, Fairfax, VA, 22033. Phone: (703) 391-2020. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Marie Langan, M.D.'s license?
NPPES lists Virginia license number 0116024019, 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 Kathleen Marie Langan, M.D. prescribe under Medicare Part D?
In 2024, Kathleen Marie Langan, M.D. had 1,149 Medicare Part D claims for 110 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.