Quick answers
- Does Nicholas G. Lailas accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas G. Lailas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Nicholas G. Lailas see?
- In 2024, CMS data shows 645 Original Medicare patients and 3,508 services for Nicholas G. Lailas. This counts Original Medicare only and measures volume, not quality.
- What is Nicholas G. Lailas's NPI number?
- 1750376539. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Nicholas G. Lailas, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 645 |
|---|---|
| Services billed to Medicare | 3,508 |
| Different services or procedures | 76 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Principal care management services for a single high-risk disease, first 30 minutes of clinical staff time directed by health care professional, per calendar month (99426)839 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)417 services
- Urinalysis, manual test (81002)186 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)132 services
- Ultrasound measurement of bladder capacity after voiding (51798)130 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure73%
- Arthritis46%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)40%
- Ischemic heart disease35%
- Diabetes29%
Hospitals where Nicholas G. Lailas works
Medicare's Facility Affiliation Data lists Nicholas G. Lailas at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490043
- Reston Hospital CenterReston, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490107
- Stonesprings Hospital CenterDulles, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490145
- Virginia Hospital CenterArlington, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490050
Practice locations
Addresses where Nicholas G. Lailas is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1860 Town Ctr Dr, Suite 150Reston, VA 20190 (703) 480‑0220
- 19415 Deerfield Ave, Suite 112Leesburg, VA 20176 (703) 724‑1195
- 19500 Sandridge Way, Suite 300Leesburg, VA 20176 (571) 577‑8920
- 20955 Professional Plz, Suite 200Ashburn, VA 20147 (703) 729‑7652
- 224 D Cornwall St NWLeesburg, VA 20176
Group practices
Medicare enrollment lists Nicholas G. Lailas as a member of these groups (CMS data updated October 2, 2026).
- Loudoun Medical Group, PC271 clinicians in the group
- Gastrointestinal Specialists LLC81 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Reston
Clinicians with the same Medicare primary specialty in Reston, VA — not a recommendation.
Other clinicians in Loudoun Medical Group, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1750376539 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians