Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Matthew Tyler Lisk , DO

Internal Medicine โ€ข Winchester, VA

Active NPI 1992016844 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

1840 Amherst St
Winchester, VA 22601

Call 5405362270 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

1840 Amherst St

Winchester, VA 22601

Telephone 5405362270
Fax 5405367847
Organization at the Same NPPES Address or Phone
Winchester Radiologists Pc Facility NPI 1235123977

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

NPPES lists 8 distinct additional practice-address records in Berkeley Springs, WV; Butler, PA; Luray, VA and 2 more. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 3 distinct group names: Hospitalist Medicine Physicians Of Virginia Llc; Riverside Physician Services Inc; Shenandoah Memorial Hospital, Inc.. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

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

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Medical School

University Of Pikeville, Kentucky College Of Osteopathic Med

Graduation Year

2010

Medicare patients

545 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 $120,747 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 $96,213 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

270 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

$1,858 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.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $14.63 in 2020

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2020.

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, CMS release of October 2, 2026.

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, CMS release of October 2, 2026; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Lisk 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. Lisk 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 Winchester and Virginia

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Internal Medicine in Winchester, VA (2024, 54 clinicians with data). Median for this group: 930. Middle half: 510 to 1,666.

More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Virginia (2024, 1,996 clinicians with data). Median for this group: 741. Middle half: 333 to 1,428.

Medicare-allowed amount

A higher Medicare-allowed amount than 60% of clinicians listed under Internal Medicine in Winchester, VA (2024, 54 clinicians with data). Median for this group: $91,012. Middle half: $52,966 to $169,564.

A higher Medicare-allowed amount than 70% of clinicians listed under Internal Medicine in Virginia (2024, 1,996 clinicians with data). Median for this group: $73,014. Middle half: $32,498 to $133,561.

Paid by Medicare

A higher Medicare payment amount than 60% of clinicians listed under Internal Medicine in Winchester, VA (2024, 54 clinicians with data). Median for this group: $73,600. Middle half: $34,505 to $134,418.

A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Virginia (2024, 1,996 clinicians with data). Median for this group: $56,156. Middle half: $24,612 to $102,290.

Medicare Part D prescriptions

Fewer Part D prescriptions than 60% of clinicians listed under Internal Medicine in Winchester, VA (2024, 55 clinicians with data). Median for this group: 530. Middle half: 151 to 2,957.

Fewer Part D prescriptions than 60% of clinicians listed under Internal Medicine in Virginia (2024, 2,087 clinicians with data). Median for this group: 673. Middle half: 112 to 4,002.

Part D drug cost

A lower Part D drug cost than 75% of clinicians listed under Internal Medicine in Winchester, VA (2024, 55 clinicians with data). Median for this group: $24,377. Middle half: $2,948 to $218,747.

A lower Part D drug cost than 75% of clinicians listed under Internal Medicine in Virginia (2024, 2,087 clinicians with data). Median for this group: $47,922. Middle half: $2,584 to $320,481.

75 active clinicians are listed under Internal Medicine with a practice address in Winchester, VA (3,626 in Virginia).

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

Telehealth indicator in Winchester

22.7% of these 75 clinicians have the CMS telehealth indicator.

68% of these 75 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2020), CMS Doctors and Clinicians, CMS release of October 2, 2026, 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 2020

Program year 2020 (payments made January 1 โ€“ December 31, 2020): fewer than 11 records totaling $14.63.

Manufacturer Payment Nature Product Type Amount ($)
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
Food and Beverage
Cash or cash equivalent
LifeVest General $14.63

Source: CMS Open Payments, program year 2020, 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
335 211 $372.69 $120.56
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
315 192 $264.63 $79.63
99239 Hospital discharge day management, more than 30 minutes
229 226 $458.72 $116.21
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
163 158 $709.31 $175.85

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
Prednisone Prednisone 33 183 $93.73 32
Cefdinir Cefdinir 22 86 $129.44 22
Furosemide Furosemide 18 486 $57.95 17
Ondansetron Odt Ondansetron 16 82 $125.24 15
Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav 16 86 $86.25 16
Lactulose Lactulose 15 188 $72.74 15
Metoprolol Tartrate Metoprolol Tartrate 14 480 $43.19 13
Doxycycline Hyclate Doxycycline Hyclate 14 68 $56.47 14
Azithromycin Azithromycin 13 53 $33.28 13
Atorvastatin Calcium Atorvastatin Calcium 13 375 $73.18 13
Tamsulosin Hcl Tamsulosin Hcl 13 310 $111.37 โ€”
Famotidine Famotidine 12 339 $60.50 11
Oxycodone Hcl Oxycodone Hcl 12 56 $42.18 12
Dexamethasone Dexamethasone 12 85 $137.83 12
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 11 47 $64.08 11
Pantoprazole Sodium Pantoprazole Sodium 11 287 $53.23 โ€”
Potassium Chloride Potassium Chloride 11 231 $412.12 โ€”
Buspirone Hcl Buspirone Hcl 11 310 $204.89 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: 2026-03-17
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES VA 0102204917

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.

Hospitalist

NUCC Taxonomy Code: 208M00000X

License # reported to NPPES VA 0102204917

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES PA OS016420

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.

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

Medicare (PECOS) Enrollment & Ordering Eligibility

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

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20180108001900

Enrollment State Jurisdiction

WV

PECOS Control ID

2961643143

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, CMS release of October 2, 2026

Shenandoah Memorial Hospital, Inc.

759 S Main St, Woodstock, VA 226641154

Riverside Physician Services Inc

20480 Market St, Onancock, VA 234174309

Phone: 7573022342

Riverside Physician Services Inc

500 J Clyde Morris Blvd, Newport News, VA 236011929

Phone: 7575943580

Hospitalist Medicine Physicians Of Virginia Llc

1000 N Shenandoah Ave, Front Royal, VA 226303547

Phone: 5406360300

Hospitalist Medicine Physicians Of Virginia Llc

759 S Main St, Woodstock, VA 226641127

Phone: 5404591285

Secondary Practice Locations

363 Sunrise Blvd

Romney, WV 267574607

Phone: 3048224561

1 Hospital Way

Butler, PA 160014670

Phone: 7242850823

329 Sunrise Blvd

Romney, WV 267574607

Phone: 3048224932

759 S Main St

Woodstock, VA 226641154

Phone: 5404591383

3774 Valley Rd

Berkeley Springs, WV 254114614

Phone: 3042589433

135 Memorial Dr

Luray, VA 228351016

Phone: 5407432887

1 Healthy Way

Berkeley Springs, WV 254117463

Phone: 3042581234

200 Memorial Dr

Luray, VA 228351000

Phone: 5407434561

759 S Main St

Woodstock, VA 226641154

Phone: 5404591100

Clinicians Sharing This Practice Address or Phone

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

18 listed
Dr. Daniel Abraham , MD

Internal Medicine

NPI 1841388691

Doctor of Medicine (M.D.)

Dr. Yirgalem Abraham , MD

Internal Medicine

NPI 1689646101

Doctor of Medicine (M.D.)

NPI 1902169741

Doctor of Medicine (M.D.)

Dr. Neeraja Akula , MD

Internal Medicine

NPI 1265598981

Doctor of Medicine (M.D.)

Dr. Daniel Assefa , MD

Internal Medicine - Infectious Disease

NPI 1770740037

Doctor of Medicine (M.D.)

NPI 1538656616

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

18 Historical Events
๐Ÿ“
Updated Business Mailing Address March 17, 2026

Registered at 220 CAMPUS BLVD STE 320, WINCHESTER, VA 226012889 (Tel: 5405365100)

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 200 Memorial Dr, Luray, VA 228351000

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 363 Sunrise Blvd, Romney, WV 267574607

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 3774 Valley Rd, Berkeley Springs, WV 254114614

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 759 S Main St, Woodstock, VA 226641154

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 135 Memorial Dr, Luray, VA 228351016

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 329 Sunrise Blvd, Romney, WV 267574607

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 1 Healthy Way, Berkeley Springs, WV 254117463

๐Ÿข
Secondary Practice Location Registered March 17, 2026

Additional practice office at 1 Hospital Way, Butler, PA 160014670

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 17, 2026

Internal Medicine (license number reported to NPPES: VA 0102204917)

๐Ÿ“
Updated Practice Location May 22, 2018

Registered at 1840 AMHERST ST, WINCHESTER, VA 22601 (Tel: 5405362270)

๐Ÿ“
Updated Business Mailing Address May 22, 2018

Registered at 1840 AMHERST ST, WINCHESTER, VA 226012808 (Tel: 5405362270)

โœ…
NPI Profile Active July 19, 2013

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) July 19, 2013

Registered at 1 HOSPITAL WAY, BUTLER, PA 160014670 (Tel: 7242850823)

๐Ÿ“
Business Mailing Address (Initial Record) July 19, 2013

Registered at 1 HOSPITAL WAY, BUTLER, PA 160014670 (Tel: 7242850823)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) July 19, 2013

Recorded as MATTHEW LISK, D.O.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 19, 2013

Internal Medicine (license number reported to NPPES: PA OS016420)

๐ŸŸข
Initial NPI Registration & Enumeration June 25, 2010

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1992016844
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 25, 2010
Last Update: March 17, 2026
Sole Proprietor: No

Other Internal Medicine Providers in Winchester

All Internal Medicine Providers in Winchester

Mailing Address

220 Campus Blvd Ste 320

Winchester, VA 226012889

Phone: 5405365100

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.