Karnail Singh, MD
Internal Medicine Physician · Lansdowne, VA
Karnail Singh, MD is an internal medicine physician with a practice address in Lansdowne, Virginia, and NPI 1871593202, issued on Jul 28, 2005. Check the license (Virginia 0101058812, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Karnail Singh
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101058812 VA
Self-reported in NPPES; status is on the state search - Practice location
- 19415 Deerfield Ave, Lansdowne, VA 20176
- Phone
- (703) 729-2626
- Enumerated
- Jul 28, 2005
- Record last updated
- Mar 3, 2026
- Fax
- (703) 729-3141
- Medicaid ID
- 5837618 VA
- Medicare enrollment
- Enrolled (PECOS I20101123000295); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,599 in Virginia → Look up another NPI →
Also registered at 19415 Deerfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karnail Singh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101058812Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average internal medicine physician in 2024
736 Medicare Part D claims for 110 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Diclofenac Sodium40 claims
- Pantoprazole Sodium37 claims
- Atorvastatin Calcium34 claims
- Metformin Hcl22 claims
- Clotrimazole-Betamethasone21 claims
- Jardiance21 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.
Industry payments in 2024: $152.69
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Inova Health Care ServicesSpringfield, VA
- Loudoun Medical Care PCLansdowne, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karnail Singh among 3,599 internal medicine physician records in Virginia
Karnail Singh, MD is one of 3,599 internal medicine physician records with a practice address in Virginia. 77% 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, 91% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1986 · median 2003 among the 2,234 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 internal medicine physician records list a practice address in Lansdowne
They are 10 of the 197 NPPES records with a practice address in Lansdowne, and 3,599 internal medicine physician records in Virginia.
All 3,599 in Virginia → Every provider in Lansdowne → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bethel Alemayehu, MDLeesburg, VA 201761255328910
- John Andrew, MDLeesburg, VA 201761700870755
- Sandhya Chanda, MDLeesburg, VA 201761043219710
- Sarfraz Choudhary, MDLeesburg, VA 201761619960242
- John Cook, MDLeesburg, VA 201761811981897
- Richard Kim, MDLeesburg, VA 201761902890981
- Han-Jong Koh, MDLeesburg, VA 201761619962263
- Martin Korkowski, MDLeesburg, VA 201761801880752
Common questions
What is Karnail Singh, MD's NPI number?
Karnail Singh, MD's National Provider Identifier (NPI) is 1871593202, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karnail Singh, MD located?
The NPPES record lists a practice address at 19415 Deerfield Ave, Lansdowne, VA, 20176. Phone: (703) 729-2626. Providers update this record themselves, so call before visiting.
How can I verify Karnail Singh, MD's license?
NPPES lists Virginia license number 0101058812, 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 Karnail Singh, MD prescribe under Medicare Part D?
In 2024, Karnail Singh, MD had 736 Medicare Part D claims for 110 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.