DR. KARNAIL SINGH MD
NPI 1871593202
Internal Medicine in Lansdowne, VA

Q: What is Karnail Singh's NPI number?

The NPI number for Karnail Singh is 1871593202. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Q: What is Karnail Singh's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Karnail Singh was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 28, 2005PECOS EnrolledAccepts Medicare Assignment

19415 DEERFIELD AVE, SUITE 115, LANSDOWNE, VA 20176(703) 729-2626(703) 729-3141 Get Directions Write a Review

NPPES record last updated: March 3, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Karnail Singh Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KARNAIL SINGH MD (NPI 1871593202) is an individual internal medicine provider in Lansdowne, Virginia, licensed in Virginia (0101058812) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Inova Loudoun Hospital, and maintains a secondary practice location in Leesburg.

NPPES Registry Identity

NPI1871593202

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. KARNAIL SINGHCredential: MD

Location Address19415 DEERFIELD AVE, SUITE 115Lansdowne, VA 20176-8452

Mailing Address19415 Deerfield Ave Ste 115Lansdowne, VA 20176-8470 · (703) 729-2626 · Fax (703) 729-3141

Phone(703) 729-2626

Fax(703) 729-3141

Sole ProprietorNo

Medical School CMSOtherGraduated 1986

Enumeration DateJuly 28, 2005

Last NPPES UpdateMarch 3, 2026

NPPES CertifiedMarch 3, 2026

✔ NPI 1871593202 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in VA · 0101058812

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

19415 DEERFIELD AVE, Lansdowne, VA 20176

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Secondary Practice Location 1

Location 144045 Riverside PkwyLeesburg, VA 20176-5101 · Phone (703) 858-6000 · Fax (703) 858-6900

Other Identifiers 3

Other110216277Medicare Railroad

Medicaid5837618VA

Other451981VA · Anthem

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karnail Singh Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375577547

PECOS Enrollment IDI20101123000295

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Karnail Singh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Loudoun Medical Care PC

Same address

Internal Medicine

19415 DEERFIELD AVE, STE 115
Lansdowne, VA 20176

Reassigned Medicare billing, Virginia enrollment
2 clinicians in this Medicare group

NPI 1184642761 (703) 729-2626

Inova Health Care Services

17 mi

Urgent Care

100 MAPLE AVE E
Vienna, VA 22180

Reassigned Medicare billing, Virginia enrollment
2,379 clinicians in this Medicare group

NPI 1275886418 (703) 938-5300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

96 services28 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

41 services35 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

39 services23 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

35 services22 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

32 services16 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Inova Loudoun Hospital

Acute Care Hospitals · Leesburg, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490043

Location44045 Riverside ParkwayLeesburg, VA 20176 · Loudoun County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20176 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$129.04 typical visit price

range $56.19 – $170.30

Typical copayment $32.26 (range $14.04 – $42.57)

Most-billed visit code 99204

Established Patient

$99.13 typical visit price

range $18.07 – $138.91

Typical copayment $24.78 (range $4.51 – $34.72)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

5 suppliers11 claims17 services$5.07 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NORTHLAND HEARING CENTERS, INC.

Audiologist-Hearing Aid Fitter

19415 DEERFIELD AVE, SUITE 301-B
LANSDOWNE, VA 20176

Loudoun County (703) 723-9672

DR. CAROLYN M WALSH MD

Internal Medicine

19415 DEERFIELD AVE, SUITE 307
LANSDOWNE, VA 20176

Loudoun County (703) 723-7713

NAVIN HUKMANI, DDS, LLC

Dentist (Orthodontics and Dentofacial Orthopedics)

19415 DEERFIELD AVE, SUITE 306
LEESBURG, VA 20176

Loudoun County (703) 858-3600

ROBERTA MAUREEN MORELAND MD

Dermatology

19415 DEERFIELD AVE, SUITE 314
LEESBURG, VA 20176

Loudoun County (703) 723-7171

DULLES EYE ASSOCIATES, P.C.

Ophthalmology

19415 DEERFIELD AVE, STE 106
LANSDOWNE, VA 20176

Loudoun County (703) 723-9633

LOUDOUN MEDICAL CARE PC

Internal Medicine

19415 DEERFIELD AVE, STE 115
LANSDOWNE, VA 20176

Loudoun County (703) 729-2626

DR. MANDEEP SANDHU MD

Internal Medicine

19415 DEERFIELD AVE, SUITE 115
LANSDOWNE, VA 20176

Loudoun County (703) 729-2626

MCDONALD PEDIATRICS PC

Pediatrics

19415 DEERFIELD AVE, STE 105
LANSDOWNE, VA 20176

Loudoun County (571) 223-2229

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karnail Singh's NPI number?

The NPI number for Karnail Singh is 1871593202. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Where is Karnail Singh located?

Karnail Singh practices at 19415 Deerfield Ave Suite 115, Lansdowne, VA 20176. The listed phone number is (703) 729-2626.

What is Karnail Singh's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karnail Singh enrolled in Medicare?

Yes. Karnail Singh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karnail Singh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karnail Singh reassigns Medicare benefits to 2 organizations: Loudoun Medical Care PC (Lansdowne, VA) and Inova Health Care Services (Vienna, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karnail Singh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Karnail Singh affiliated with any hospitals?

According to CMS data, Karnail Singh is affiliated with Inova Loudoun Hospital.

When was this NPI record last updated?

The NPPES record for Karnail Singh was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.