Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Olivia Jayne Darwin , PA-C

Physician Assistant โ€ข Salem, VA

Active NPI 1083279376 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

1802 Braeburn Dr
Salem, VA 241537357

Call 5407255006 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

1802 Braeburn Dr

Salem, VA 241537357

Telephone 5407255006
Organization at the Same NPPES Address or Phone
Lewis-Gale Physicians, Llc Facility NPI 1205810264

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 1 additional practice-address record in Roanoke, VA. See the list

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

CMS Doctors and Clinicians lists 1 group name: Lewis Gale Physicians Llc. 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

Graduation Year

2018

Medicare patients

364 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 $41,154 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 $30,456 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

1,707 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

$284,169 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: $1,645.20 across 74 records.

By nature of payment

  • Food and Beverage: $1,645.20 across 74 records.

Reporting-company totals (3 largest of 19)

  • ABBVIE INC.: $291.98 across 18 records.
  • Janssen Pharmaceuticals, Inc: $270.42 across 11 records.
  • Regeneron Pharmaceuticals, Inc.: $170.04 across 6 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

8 years (graduated 2018)

CMS Doctors and Clinicians data list 2018 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

2019

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

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Olivia Darwin 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 Olivia Darwin 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 Salem and Virginia

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Physician Assistant in Salem, VA (2024, 35 clinicians with data). Median for this group: 409. Middle half: 173 to 752.

More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Virginia (2024, 2,247 clinicians with data). Median for this group: 288. Middle half: 107 to 693.

Medicare-allowed amount

A higher Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Salem, VA (2024, 35 clinicians with data). Median for this group: $29,084. Middle half: $17,675 to $57,983.

A higher Medicare-allowed amount than 70% of clinicians listed under Physician Assistant in Virginia (2024, 2,247 clinicians with data). Median for this group: $23,153. Middle half: $9,003 to $44,800.

Paid by Medicare

A higher Medicare payment amount than 60% of clinicians listed under Physician Assistant in Salem, VA (2024, 35 clinicians with data). Median for this group: $22,188. Middle half: $13,357 to $42,967.

A higher Medicare payment amount than 70% of clinicians listed under Physician Assistant in Virginia (2024, 2,247 clinicians with data). Median for this group: $17,218. Middle half: $6,803 to $32,639.

Medicare Part D prescriptions

More Part D prescriptions than 70% of clinicians listed under Physician Assistant in Salem, VA (2024, 35 clinicians with data). Median for this group: 276. Middle half: 111 to 1,016.

More Part D prescriptions than 75% of clinicians listed under Physician Assistant in Virginia (2024, 2,256 clinicians with data). Median for this group: 247. Middle half: 75 to 708.

Part D drug cost

A higher Part D drug cost than 80% of clinicians listed under Physician Assistant in Salem, VA (2024, 35 clinicians with data). Median for this group: $6,621. Middle half: $1,463 to $169,473.

A higher Part D drug cost than 90% of clinicians listed under Physician Assistant in Virginia (2024, 2,256 clinicians with data). Median for this group: $3,441. Middle half: $640 to $57,211.

63 active clinicians are listed under Physician Assistant with a practice address in Salem, VA (4,411 in Virginia).

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

Telehealth indicator in Salem

9.5% of these 63 clinicians have the CMS telehealth indicator.

54% of these 63 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 (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): 74 records totaling $1,645.20.

Manufacturer Payment Nature Product Type Amount ($)
Boston Scientific Corporation
Food and Beverage
In-kind items and services
LUX-Dx Insertable Cardiac Monitor General $122.75
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $93.60
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $33.74
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $33.45
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $33.32
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $31.50
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $30.43
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $29.63
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $29.55
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $28.98
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $28.52
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $27.80
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
โ€” General $27.47
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $27.10
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $27.00
Takeda Pharmaceuticals U.S.A., Inc.
Food and Beverage
In-kind items and services
ENTYVIO General $26.99
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $26.95
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $25.72
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $25.10
Ardelyx, Inc.
Food and Beverage
In-kind items and services
IBSRELA General $24.75
Ipsen Biopharmaceuticals, Inc
Food and Beverage
In-kind items and services
IQIRVO General $24.65
Mallinckrodt Hospital Products Inc.
Food and Beverage
In-kind items and services
TERLIVAZ General $24.30
Phathom Pharmaceuticals, Inc.
Food and Beverage
Cash or cash equivalent
VOQUEZNA General $24.25
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
โ€” General $24.21
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $23.81

(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 2019โ€“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, 2020โ€“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
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
231 209 $184.95 $74.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
190 163 $272.60 $105.78
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
22 21 $116.82 $46.89
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
20 20 $398.80 $137.87

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
Pantoprazole Sodium Pantoprazole Sodium 164 11,805 $1,749.63 60
Famotidine Famotidine 138 9,444 $1,013.67 57
Omeprazole Omeprazole 125 9,564 $1,237.95 60
Colestipol Hcl Colestipol Hcl 88 4,583 $4,774.22 34
Sucralfate Sucralfate 62 2,872 $3,013.10 24
Dicyclomine Hcl Dicyclomine Hcl 51 2,190 $1,026.05 27
Linzess Linaclotide 48 2,158 $38,552.41 18
Metoclopramide Hcl Metoclopramide Hcl 29 1,590 $91.21 11
Ondansetron Hcl Ondansetron Hcl 27 881 $282.60 โ€”
Furosemide Furosemide 22 1,080 $41.98 โ€”
Spironolactone Spironolactone 20 1,030 $173.64 โ€”
Ondansetron Odt Ondansetron 20 523 $277.40 โ€”
Lactulose Lactulose 19 656 $233.17 โ€”
Diphenoxylate-Atropine Diphenoxylate Hcl/Atropine 19 594 $338.28 โ€”
Zenpep Lipase/Protease/Amylase 18 759 $102,043.79 โ€”
Creon Lipase/Protease/Amylase 14 628 $41,753.38 โ€”
Rinvoq Upadacitinib 12 354 $87,566.82 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

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES VA 0110006661

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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 - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20200210000465

Enrollment State Jurisdiction

VA

PECOS Control ID

9335575414

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

Lewis Gale Physicians Llc

1802 Braeburn Dr, Salem, VA 241537357

Secondary Practice Locations

3960 Valley Gateway Blvd Ste A1

Roanoke, VA 240126859

Phone: 5403531859

Clinicians Sharing This Practice Address or Phone

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

40 listed
NPI 1396710638

Master of Science

Christopher Anderson , PA-C

Physician Assistant

NPI 1144817677

Physician Assistant (Certified)

Dr. Elizabeth Barwick , DO

Obstetrics & Gynecology

NPI 1518157668

Doctor of Osteopathic Medicine (D.O.)

Matthew Bowles , PA

Physician Assistant

NPI 1942236948

Physician Assistant

Amanda Bright , PA-C

Physician Assistant

NPI 1740665470

Physician Assistant (Certified)

Dr. Muddasar Chaudry , MD

Internal Medicine - Infectious Disease

NPI 1396795936

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

7 Historical Events
๐Ÿ“
Updated Practice Location November 21, 2019

Registered at 1802 BRAEBURN DR, SALEM, VA 241537357 (Tel: 5407255006)

โœ…
NPI Profile Active May 02, 2019

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) May 02, 2019

Registered at 3960 VALLEY GATEWAY BLVD STE A1, ROANOKE, VA 240126859 (Tel: 5403531859)

๐Ÿ“
Business Mailing Address (Initial Record) May 02, 2019

Registered at 17 CHURCH AVE SW APT 302, ROANOKE, VA 240112011 (Tel: 9012373306)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) May 02, 2019

Recorded as OLIVIA DARWIN, PA-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 02, 2019

Physician Assistant (license number reported to NPPES: VA 0110006661)

๐ŸŸข
Initial NPI Registration & Enumeration May 02, 2019

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1083279376
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 02, 2019
Last Update: November 21, 2019
Sole Proprietor: No

Other Physician Assistants in Salem

All Physician Assistants in Salem

Mailing Address

17 Church Ave Sw Apt 302

Roanoke, VA 240112011

Phone: 9012373306

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.