Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Jonathan L Siddon , DO

Internal Medicine • Gainesville, VA

Active NPI 1003194218 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

7051 Heathcote Village Way Ste 140
Gainesville, VA 201553198

Call 5716854388 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

7051 Heathcote Village Way Ste 140

Gainesville, VA 201553198

Telephone 5716854388
Fax 7037435275
Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: Legacy Healthcare Services Inc; Privia Medical Group, 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

2011

Medicare patients

299 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 – by Provider, 2024.

Medicare-allowed amount

About $135,752 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 – by Provider and Service, 2024.

Paid by Medicare

About $109,258 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 – by Provider and Service, 2024.

30-day fills

6,929 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

$198,982 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 – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $723.87 across 37 records.

By nature of payment

  • Food and Beverage: $691.60 across 36 records.
  • Education: $32.27 across 1 record.

Reporting-company totals (3 largest of 8)

  • Novo Nordisk Inc: $241.80 across 11 records.
  • ABBVIE INC.: $179.19 across 11 records.
  • Eli Lilly and Company: $79.26 across 4 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

15 years (graduated 2011)

CMS Doctors and Clinicians data list 2011 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

2011

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, “Does your provider accept Medicare as full payment?”

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. Siddon 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. Siddon 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 Gainesville and Virginia

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 80% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: 748. Middle half: 335 to 1,431.

Too few clinicians listed under Internal Medicine in Gainesville have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 75% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: $73,309. Middle half: $32,676 to $134,131.

Too few clinicians listed under Internal Medicine in Gainesville have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 75% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: $56,392. Middle half: $24,672 to $102,762.

Too few clinicians listed under Internal Medicine in Gainesville have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Virginia (2024, 2,088 clinicians with data). Median for this group: 684. Middle half: 116 to 4,028.

Too few clinicians listed under Internal Medicine in Gainesville have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Virginia (2024, 2,088 clinicians with data). Median for this group: $49,170. Middle half: $2,703 to $324,085.

Too few clinicians listed under Internal Medicine in Gainesville have Medicare Part D data for 2024 to compare.

9 active clinicians are listed under Internal Medicine with a practice address in Gainesville, VA (3,603 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 · 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 · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 37 records totaling $723.87.

Manufacturer Payment Nature Product Type Amount ($)
Novo Nordisk Inc
Education
In-kind items and services
Ozempic General $32.27
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $31.14
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $27.65
Bayer Healthcare Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Kerendia General $26.26
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $23.98
ABBVIE INC.
Food and Beverage
In-kind items and services
QULIPTA General $23.65
Boehringer Ingelheim Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
JARDIANCE General $23.20
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $22.35
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $22.12
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $22.05
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $21.57
Exact Sciences Corporation
Food and Beverage
In-kind items and services
The Cologuard Plus Collection Kit General $20.97
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $20.75
Eli Lilly and Company
Food and Beverage
In-kind items and services
— General $20.61
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $20.24
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $19.78
ABBVIE INC.
Food and Beverage
In-kind items and services
QULIPTA General $19.28
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $19.22
Bayer Healthcare Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Kerendia General $19.14
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $19.10
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $18.96
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $18.63
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
FARXIGA General $18.42
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $18.41
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $18.30

(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 · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
423 211 $304.00 $121.14
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
386 217 $44.00 $15.81
36415 Insertion of needle into vein for collection of blood sample
340 214 $11.22 $8.58
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
187 131 $206.00 $87.53
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
168 168 $358.00 $123.88
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
95 90 $67.00 $13.79
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes
67 11 $147.00 $47.39
G0008 Administration of influenza virus vaccine
57 56 $73.00 $31.41
90653 Influenza vaccine, inactivated
54 54 $149.00 $81.82
87804 Detection test by immunoassay with direct visual observation for influenza virus
31 14 $38.00 $16.22
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
30 30 $662.00 $290.55
G0009 Administration of pneumococcal vaccine
30 30 $73.00 $31.41
90480 Admn sarscov2 vacc 1 dose
28 28 $120.00 $41.89
91320 Sarscv2 vac 30mcg trs-suc im
28 28 $328.00 $152.78
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus
27 24 $128.00 $34.62
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
27 27 $466.00 $161.72
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
23 22 $125.00 $54.91
81003 Automated urinalysis test
19 16 $8.00 $2.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
18 17 $405.00 $164.48
99495 Transitional care management services for problem of at least moderate complexity
13 13 $464.00 $187.66

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 · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 188 16,758 $1,387.65 67
Levothyroxine Sodium Levothyroxine Sodium 181 16,170 $1,569.36 50
Losartan Potassium Losartan Potassium 168 14,706 $1,786.42 53
Amlodipine Besylate Amlodipine Besylate 151 12,948 $1,377.78 53
Simvastatin Simvastatin 121 10,316 $861.85 39
Lisinopril Lisinopril 110 9,400 $779.17 37
Metoprolol Succinate Metoprolol Succinate 100 8,910 $1,165.83 33
Rosuvastatin Calcium Rosuvastatin Calcium 84 7,560 $959.68 30
Metformin Hcl Metformin Hcl 71 5,897 $780.30 24
Hydrochlorothiazide Hydrochlorothiazide 60 4,918 $193.47 22
Escitalopram Oxalate Escitalopram Oxalate 57 4,824 $639.50 19
Pantoprazole Sodium Pantoprazole Sodium 54 4,810 $500.43 22
Jardiance Empagliflozin 50 4,080 $77,505.13 15
Montelukast Sodium Montelukast Sodium 49 4,410 $814.49 16
Omeprazole Omeprazole 46 4,100 $445.82 16
Tamsulosin Hcl Tamsulosin Hcl 45 3,898 $370.30 18
Eliquis Apixaban 43 2,487 $49,235.82 12
Alprazolam Alprazolam 41 1,150 $240.07 —
Trazodone Hcl Trazodone Hcl 41 3,570 $249.05 13
Zolpidem Tartrate Zolpidem Tartrate 39 3,030 $447.56 12
Synthroid Levothyroxine Sodium 35 3,150 $1,943.96 —
Sertraline Hcl Sertraline Hcl 32 2,790 $350.40 15
Fluticasone Propionate Fluticasone Propionate 31 2,010 $332.76 —
Albuterol Sulfate Hfa Albuterol Sulfate 30 675 $590.15 12
Ezetimibe Ezetimibe 29 2,610 $1,100.89 —

(top 25 shown)

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: 2021-04-12
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES VA 0102203729

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

I20140722000930

Enrollment State Jurisdiction

DC

PECOS Control ID

1759512858

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

Privia Medical Group, Llc

950 N Glebe Rd, Arlington, VA 222034173

Privia Medical Group, Llc

8644 Sudley Rd, Manassas, VA 201104425

Phone: 5713668845

Legacy Healthcare Services Inc

9642 Burke Lake Rd, Burke, VA 220153052

Phone: 7035437920

Privia Medical Group, Llc

950 N Glebe Rd, Arlington, VA 222034173

Clinicians Sharing This Practice Address or Phone

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

1 listed
Madison Butz , PA-C

Physician Assistant

NPI 1528768959

Physician Assistant (Certified)

Career & Practice History Timeline

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

13 Historical Events
📍
Updated Practice Location February 19, 2021

Registered at 7051 HEATHCOTE VILLAGE WAY STE 140, GAINESVILLE, VA 201553198 (Tel: 5716854388)

📍
Updated Business Mailing Address February 19, 2021

Registered at 7051 HEATHCOTE VILLAGE WAY STE 140, GAINESVILLE, VA 201553198 (Tel: 5716854388)

âś…
NPI Profile Active January 19, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location January 19, 2017

Registered at 7764 ARMISTEAD RD, 240, LORTON, VA 220791919 (Tel: 7033393806)

📍
Updated Business Mailing Address January 19, 2017

Registered at 8988 LORTON STATION BLVD, 100, LORTON, VA 220794756 (Tel: 7037802800)

👤
Provider Name / Credentials Updated January 19, 2017

Recorded as JONATHAN SIDDON, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 19, 2017

Internal Medicine (license number reported to NPPES: VA 0102203729)

âś…
NPI Profile Active July 22, 2011

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) July 22, 2011

Registered at 4300 LONDONDERRY RD, HARRISBURG, PA 171095317 (Tel: 7172318900)

📍
Business Mailing Address (Initial Record) July 22, 2011

Registered at 1932 SUSQUEHANNA ST, HARRISBURG, PA 171022239 (Tel: 7039809014)

👤
Provider Name / Credentials (Initial Record) July 22, 2011

Recorded as JONATHAN SIDDON, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 22, 2011

Internal Medicine (license number reported to NPPES: PA OT013959)

🟢
Initial NPI Registration & Enumeration July 22, 2011

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1003194218
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 22, 2011
Last Update: April 12, 2021
Sole Proprietor: No

Other Internal Medicine Providers in Gainesville

Healthcare providers in Gainesville

More public profiles in Virginia

Directory navigation, in NPI number order.

Mailing Address

7051 Heathcote Village Way Ste 140

Gainesville, VA 201553198

Phone: 5716854388

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.