Karla Isabel Lacayo, M.D.
Emergency Medicine Physician · Arlington, VA
Karla Isabel Lacayo, M.D. is an emergency medicine physician with a practice address in Arlington, Virginia, and NPI 1679730535, issued on May 19, 2008. Check the license (Virginia 0101243646, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Karla Isabel Lacayo
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 0101243646 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1701 N George Mason Dr, Arlington, VA 22205
- Phone
- (703) 558-6161
- Enumerated
- May 19, 2008
- Record last updated
- May 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,715 in Virginia → Look up another NPI →
Also registered at 1701 N George Mason Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mushfique Ahmed, MDAnesthesiology Physician1013334978
- Bonnie Ahn, M.D.Diagnostic Radiology Physician1528220985
- Usman Akhtar, M.D.Internal Medicine Physician1447583117
- Sonia AminObstetrics & Gynecology Physician1548722424
- William Anderson Iii,, M.D.Family Medicine Physician1447278734
Verify Karla Isabel Lacayo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101243646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average emergency medicine physician in 2024
140 Medicare Part D claims for 93 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Oxycodone Hcl20 claims
- Ondansetron Odt17 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.
Karla Isabel Lacayo among 1,715 emergency medicine physician records in Virginia
Karla Isabel Lacayo, M.D. is one of 1,715 emergency medicine physician records with a practice address in Virginia. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.
- NPI issued2008 · 49% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2008 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Virginia
There are 1,715 emergency medicine physician records in Virginia.
All 1,715 in Virginia → Every provider in Arlington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Allyson Bloom, MDArlington, VA 222051417980194
- Wendy Bloom, M.D.Arlington, VA 222051659561769
- Kevin Campbell, MDArlington, VA 222051104894815
- Michelle Divito, MDArlington, VA 222051114916632
- Peter Liu, MDArlington, VA 222051407835853
- Vikram Malkani, MDArlington, VA 222051942243282
- Andrea Martin, MDArlington, VA 222051528168812
- John Mueller, MDArlington, VA 222051326029364
Common questions
What is Karla Isabel Lacayo, M.D.'s NPI number?
Karla Isabel Lacayo, M.D.'s National Provider Identifier (NPI) is 1679730535, issued on May 19, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Karla Isabel Lacayo, M.D. located?
The NPPES record lists a practice address at 1701 N George Mason Dr, Arlington, VA, 22205. Phone: (703) 558-6161. Providers update this record themselves, so call before visiting.
How can I verify Karla Isabel Lacayo, M.D.'s license?
NPPES lists Virginia license number 0101243646, 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 Karla Isabel Lacayo, M.D. prescribe under Medicare Part D?
In 2024, Karla Isabel Lacayo, M.D. had 140 Medicare Part D claims for 93 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.