Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Nathan Roberts , MD

Urology โ€ข Lansdowne, VA

Active NPI 1942526165 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

19415 Deerfield Avenue, Suite 112
Lansdowne, VA 201768470

Call 7037241195 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

19415 Deerfield Avenue, Suite 112

Lansdowne, VA 201768470

Telephone 7037241195
Fax 7037244495
Organization at the Same NPPES Address or Phone
Gastrointestinal Specialists Llc Facility NPI 1649138041

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: Gastrointestinal Specialists Llc; Loudoun Medical Group, Pc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Jefferson Medical College Of Thomas Jefferson University

Graduation Year

2010

Medicare patients

857 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $257,413 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $193,449 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

3,295 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$341,631 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $948.86 across 31 records.

By nature of payment

  • Food and Beverage: $848.87 across 30 records.
  • Education: $99.99 across 1 record.

Reporting-company totals (3 largest of 16)

  • Janssen Pharmaceuticals, Inc: $299.55 across 7 records.
  • Ferring Pharmaceuticals Inc.: $108.62 across 5 records.
  • C. R. Bard, Inc. & Subsidiaries: $93.35 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

16 years (graduated 2010)

CMS Doctors and Clinicians data list 2010 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2010

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Roberts has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Roberts as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Lansdowne and Virginia

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 60% of clinicians listed under Urology in Virginia (2024, 218 clinicians with data). Median for this group: 2,306. Middle half: 766 to 5,298.

Too few clinicians listed under Urology in Lansdowne have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 65% of clinicians listed under Urology in Virginia (2024, 218 clinicians with data). Median for this group: $176,111. Middle half: $72,177 to $296,677.

Too few clinicians listed under Urology in Lansdowne have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 65% of clinicians listed under Urology in Virginia (2024, 218 clinicians with data). Median for this group: $131,847. Middle half: $54,881 to $222,518.

Too few clinicians listed under Urology in Lansdowne have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 65% of clinicians listed under Urology in Virginia (2024, 234 clinicians with data). Median for this group: 966. Middle half: 304 to 1,617.

Too few clinicians listed under Urology in Lansdowne have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 75% of clinicians listed under Urology in Virginia (2024, 234 clinicians with data). Median for this group: $86,734. Middle half: $15,005 to $302,997.

Too few clinicians listed under Urology in Lansdowne have Medicare Part D data for 2024 to compare.

1 active clinicians are listed under Urology with a practice address in Lansdowne, VA (359 in Virginia).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 31 records totaling $948.86.

Manufacturer Payment Nature Product Type Amount ($)
Janssen Pharmaceuticals, Inc
Education
In-kind items and services
ERLEADA General $99.99
C. R. Bard, Inc. & Subsidiaries
Food and Beverage
In-kind items and services
โ€” General $54.20
Procept Biorobotics Corporation
Food and Beverage
In-kind items and services
AQUABEAM ROBOTIC SYSTEM General $51.14
C. R. Bard, Inc. & Subsidiaries
Food and Beverage
In-kind items and services
โ€” General $39.15
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
ERLEADA General $36.17
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
ERLEADA General $35.72
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
ERLEADA General $33.88
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
ERLEADA General $33.29
Boston Scientific Corporation
Food and Beverage
In-kind items and services
SpaceOAR VUE System - 10mL General $32.93
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
ERLEADA General $30.75
Antares Pharma, Inc.
Food and Beverage
In-kind items and services
XYOSTED General $30.32
TOLMAR, INC.
Food and Beverage
In-kind items and services
ELIGARD General $30.11
Antares Pharma, Inc.
Food and Beverage
In-kind items and services
XYOSTED General $30.05
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
ERLEADA General $29.75
Antares Pharma, Inc.
Food and Beverage
In-kind items and services
XYOSTED General $29.63
Sumitomo Pharma America, Inc.
Food and Beverage
In-kind items and services
GEMTESA General $28.79
BIOPROTECT MEDICAL, INC.
Food and Beverage
In-kind items and services
BIOPROTECT BALLOON IMPLANT SYSTEM General $27.56
Pfizer Inc.
Food and Beverage
In-kind items and services
XTANDI General $26.26
Ferring Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
ADSTILADRIN General $25.53
UROGEN PHARMA, INC.
Food and Beverage
In-kind items and services
JELMYTO General $25.23
Ferring Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
ADSTILADRIN General $24.63
Teleflex LLC
Food and Beverage
In-kind items and services
UROLIFT General $24.38
Ferring Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
ADSTILADRIN General $23.30
Sumitomo Pharma America, Inc.
Food and Beverage
In-kind items and services
GEMTESA General $22.65
Boston Scientific Corporation
Food and Beverage
In-kind items and services
SpaceOAR VUE System - 10mL General $21.40

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99426 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
877 149 $131.01 $60.10
51798 Ultrasound measurement of bladder capacity after voiding
598 402 $121.00 $10.98
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
579 482 $165.00 $87.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
368 299 $225.00 $123.84
81002 Urinalysis, manual test
209 149 $18.91 $3.36
36415 Insertion of needle into vein for collection of blood sample
148 111 $24.00 $8.60
52000 Diagnostic exam of bladder and urethra using an endoscope
138 123 $642.00 $232.49
76872 Ultrasound scan of pelvic region through rectum
55 55 $306.00 $31.10
51702 Simple insertion of temporary bladder tube
46 15 $312.00 $61.08
74420 Imaging of urinary tract following injection of a contrast agent
46 36 $70.00 $23.67
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
34 34 $395.00 $157.76
51741 Electronic assessment of bladder emptying
31 31 $293.00 $9.95
52649 Complete laser fragmentation of prostate including control of bleeding using an endoscope
29 29 $1900.00 $791.16
99427 Principal care management services for a single high-risk disease, each additional 30 minutes of clinical staff time directed by health care professional, per calendar month
28 16 $125.00 $46.15
55700 Biopsy of prostate gland
27 27 $600.00 $121.72
76942 Ultrasonic guidance for needle placement
27 27 $468.00 $28.96
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
24 22 $360.00 $170.94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
23 18 $220.00 $77.42
52352 Removal or manipulation of stone in ureter or kidney using an endoscope
22 21 $715.00 $48.31
52332 Insertion of stent in ureter using an endoscope
21 15 $2502.00 $133.44
52356 Crushing of stone of ureter with insertion of stent using an endoscope
21 21 $839.00 $393.70
52310 Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope
18 18 $1410.00 $309.37
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
15 15 $395.00 $175.20
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
14 14 $288.00 $126.76

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Tamsulosin Hcl Tamsulosin Hcl 457 37,453 $6,734.36 164
Finasteride Finasteride 207 16,711 $3,683.65 70
Silodosin Silodosin 139 11,672 $19,218.17 57
Ciprofloxacin Hcl Ciprofloxacin Hcl 96 310 $252.80 79
Orgovyx Relugolix 74 2,206 $192,988.20 12
Tramadol Hcl Tramadol Hcl 65 190 $100.47 64
Myrbetriq Mirabegron 58 3,316 $49,235.29 18
Alfuzosin Hcl Er Alfuzosin Hcl 53 3,510 $815.86 17
Tadalafil Tadalafil 48 2,580 $4,365.34 18
Gemtesa Vibegron 37 2,970 $46,432.95 12
Testosterone Testosterone 35 1,725 $7,654.55 โ€”
Oxybutynin Chloride Er Oxybutynin Chloride 33 2,390 $1,130.00 15
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 33 300 $90.69 28
Solifenacin Succinate Solifenacin Succinate 26 2,021 $1,635.82 โ€”
Fesoterodine Fumarate Er Fesoterodine Fumarate 24 1,200 $2,187.98 โ€”
Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen 16 53 $33.72 16
Dutasteride Dutasteride 16 1,313 $323.39 โ€”
Trospium Chloride Er Trospium Chloride 13 812 $2,456.01 โ€”
Chlorthalidone Chlorthalidone 12 540 $87.70 โ€”
Trospium Chloride Trospium Chloride 11 630 $579.88 โ€”
Potassium Citrate Er Potassium Citrate 11 840 $499.66 โ€”
Darifenacin Er Darifenacin Hydrobromide 11 330 $1,124.21 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2022-11-30
Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

License # reported to NPPES VA 0101259989

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Virginia Department of Health Professions.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
1942526165 (VA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - UROLOGY

Medicare Enrollment ID

I20160913002459

Enrollment State Jurisdiction

VA

PECOS Control ID

6305079112

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Loudoun Medical Group, Pc

19415 Deerfield Ave, Leesburg, VA 201768470

Phone: 7037241195

Loudoun Medical Group, Pc

1860 Town Ctr Dr, Reston, VA 201905905

Phone: 7034800220

Gastrointestinal Specialists Llc

224 D Cornwall St Nw, Leesburg, VA 201762704

Phone: 7034436733

Gastrointestinal Specialists Llc

1860 Town Ctr Dr, Reston, VA 201905905

Phone: 7034800220

Gastrointestinal Specialists Llc

19415 Deerfield Ave, Leesburg, VA 201768470

Phone: 7037241195

Loudoun Medical Group, Pc

20955 Professional Plz, Ashburn, VA 201473405

Phone: 7037297652

Loudoun Medical Group, Pc

224 D Cornwall St Nw, Leesburg, VA 201762700

Gastrointestinal Specialists Llc

6602 W Broad St, Richmond, VA 232301702

Phone: 8042858206

Gastrointestinal Specialists Llc

24430 Stone Springs Blvd, Dulles, VA 201662267

Phone: 7039571022

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

15 listed
Kathleen Cage , CFNP

Nurse Practitioner - Family

NPI 1922325000
Nicole Cash , FNP

Nurse Practitioner - Family

NPI 1386268613

Family Nurse Practitioner

NPI 1952763435
NPI 1225441660

Doctor of Osteopathic Medicine (D.O.)

Brendan Lindsey , FNP-C

Nurse Practitioner - Family

NPI 1457087496

Family Nurse Practitioner (Certified)

Jennifer Mendrysa , FNP-C

Nurse Practitioner - Family

NPI 1982076899

Family Nurse Practitioner (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

13 Historical Events
๐Ÿ“
Updated Practice Location September 27, 2022

Registered at 19415 DEERFIELD AVENUE, SUITE 112, LANSDOWNE, VA 201768470 (Tel: 7037241195)

๐Ÿ“
Updated Business Mailing Address September 27, 2022

Registered at 224-D CORNWALL STREET, NW, SUITE 403, SUITE 112, LEESBURG, VA 201762704 (Tel: 7037376010)

โœ…
NPI Profile Active February 20, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location February 20, 2017

Registered at 19415 DEERFIELD AVE, SUITE 112, LANSDOWNE, VA 201768452 (Tel: 7037241195)

๐Ÿ“
Updated Business Mailing Address February 20, 2017

Registered at 19415 DEERFIELD AVE, SUITE 112, LANSDOWNE, VA 201768452 (Tel: 7037241195)

๐Ÿ‘ค
Provider Name / Credentials Updated February 20, 2017

Recorded as NATHAN ROBERTS, M.D.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) February 20, 2017

Urology (license number reported to NPPES: VA 0101259989)

โœ…
NPI Profile Active August 11, 2010

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) August 11, 2010

Registered at 111 SOUTH 11TH ST., SUITE 2170, PHILADELPHIA, PA 191075096 (Tel: 2159556610)

๐Ÿ“
Business Mailing Address (Initial Record) August 11, 2010

Registered at 709 W GREENMAN RD, HADDONFIELD, NJ 080332723 (Tel: 6097600157)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) August 11, 2010

Recorded as NATHAN ROBERTS, M.D.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 11, 2010

Urology (license number reported to NPPES: PA MT196969)

๐ŸŸข
Initial NPI Registration & Enumeration April 13, 2010

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1942526165
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 13, 2010
Last Update: November 30, 2022
Sole Proprietor: No

Mailing Address

224-D Cornwall Street, Nw, Suite 403, Suite 112

Leesburg, VA 201762704

Phone: 7037376010

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.