Dr. Jonathan L. Siddon, DO
- Medicare services, 2024
- 2,051
- Medicare patients, 2024
- 299
- Part D claims, 2024
- 3,113
- Hospital affiliations
- 5
- Industry payments
- $8,569
- Practice address
- 8988 Lorton Station Blvd, Lorton, VA 22079
- Practice phone
- Call (571) 366-8850
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Privia Medical Group
Lorton, Virginia
Find Dr. Siddon's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jonathan L. Siddon is an internist in Lorton, Virginia
Dr. Siddon practices at Privia Medical Group in Lorton, Virginia.
Dr. Siddon's NPI, 1003194218, was assigned on July 22, 2011. Dr. Siddon holds Virginia license 0102203729.
- NPI
- 1003194218NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759512858
- NPI enumeration date
- July 22, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (571) 366-8850
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan L. Siddon practices at Privia Medical Group in Lorton, Virginia
Dr. Siddon's primary practice is Privia Medical Group, at 8988 Lorton Station Blvd, Lorton, VA 22079 in Fairfax County. The practice phone is (571) 366-8850.
- Privia Medical Group8988 Lorton Station Blvd, Lorton, VA 22079 · Fairfax CountyPhone(571) 366-8850
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan L. Siddon is affiliated with 9 sites of care and 2 medical groups
Dr. Siddon's primary practice is Privia Medical Group in Lorton, Virginia. Dr. Siddon is also affiliated with Inova Fairfax Hospital. The medical group on file is Privia Medical Group. Dmand AI also links Dr. Siddon to 4 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jonathan L. Siddon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Siddon practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Privia Medical Group | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan L. Siddon is one of 3,339 internists in Virginia
Internal medicine is Dr. Siddon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Siddon is licensed in Virginia.
Specialties and state licenses
- Internal medicine, VirginiaPrimary
Internists near Dr. Siddon
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jonathan L. Siddon billed Medicare for 2,051 services in 2024
CMS data shows 2,051 Medicare services from Dr. Siddon across 20 procedure codes in 2024, for 299 Medicare patients. Medicare paid $109,256 for them. Every service was in an office.
Dr. Siddon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7802024: 7583%
- Other services
- 2023: 2262024: 641184%
- Surgery
- 2023: 2502024: 34036%
- Tests and treatments
- 2023: 1882024: 23525%
- Lab and pathology
- 2023: 582024: 7733%
Dr. Siddon compared with the Virginia median for internists, 2024
- Dr. Siddon
- Virginia median
- Medicare services
- 2,051vs 6073.4 times
- Medicare patients
- 299vs 24622% above
- Part D claims
- 2,540vs 22411.3 times
Medians across 3,182 internists in Virginia with Dmand AI profiles that report each measure.
Dr. Siddon's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Siddon and other internists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan L. Siddon treated 299 Medicare patients in 2024, average age 76
CMS counts 299 Medicare patients who saw Dr. Siddon in 2024. The largest group is 65 to 74, with 144 patients. 75% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Siddon's median patient age at 60, with 52% women.
Dr. Siddon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Siddon's Medicare patients by sex, 2024
- Women16656%
- Men13344%
Chronic conditions among Dr. Siddon's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis39%
- Chronic kidney disease31%
- Ischemic heart disease23%
- Diabetes22%
- Mood disorders20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Siddon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan L. Siddon wrote 3,113 Medicare Part D claims in 2024
In 2024, Dr. Siddon wrote 3,113 Medicare Part D claims for 303 patients. 89% of them were for generic drugs. CMS names the drug for 2,540 of them, across 63 drugs with 11 or more claims each, at $198,982 in total drug cost. In 2023, CMS named 1,932 claims across 51 drugs.
Dr. Siddon's Part D claims by kind of drug, 2024
- Generic2,761 claims89%
- Brand-name335 claims11%
- Other17 claims1%
Dr. Siddon's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Siddon's Part D claims, 2024
- Opioids1%22 of 3,113 claims
- Antibiotics3%82 of 3,113 claims
- Antipsychotics, patients 65 and over0%11 of 3,113 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,9322024: 2,54031%
Drugs named by CMS: 63 in 2024, 51 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jonathan L. Siddon offers telehealth to Medicare patients
Dr. Siddon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Siddon as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jonathan L. Siddon received $8,569 in industry payments from 2016 to 2025
CMS Open Payments shows 521 general payments to Dr. Siddon from 44 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Novo Nordisk Inc paid the most, $1,482.
General payments to Dr. Siddon by program year, 2016 to 2025
General payments to Dr. Siddon by kind, 2016 to 2025
- Food and beverage$8,50599%
- Education$641%
Companies that paid Dr. Siddon the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jonathan L. Siddon's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jonathan L. Siddon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jonathan L. Siddon's NPI number?
Dr. Jonathan L. Siddon's NPI number is 1003194218. It was assigned on July 22, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan L. Siddon?
Dr. Jonathan L. Siddon is an internist in Lorton, Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jonathan L. Siddon practice?
Dr. Siddon practices at 8988 Lorton Station Blvd, Lorton, VA 22079. Dr. Siddon's primary practice is Privia Medical Group in Lorton, Virginia. Dmand AI also links Dr. Siddon to 4 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Jonathan L. Siddon's office phone number?
The practice phone on file for Dr. Siddon is (571) 366-8850.
What is Dr. Jonathan L. Siddon's medical license number?
Dr. Siddon holds Virginia license 0102203729.
Which hospitals is Dr. Jonathan L. Siddon affiliated with?
Dr. Siddon is affiliated with Inova Fairfax Hospital. Dmand AI links Dr. Siddon to 4 more hospitals.
What medical group is Dr. Jonathan L. Siddon part of?
Dr. Siddon is linked to Privia Medical Group. Dmand AI links Dr. Siddon to 1 more medical group.
Does Dr. Jonathan L. Siddon accept Medicare?
Yes. CMS data shows Dr. Siddon billed Medicare for 2,051 services in 2024, and Dr. Siddon accepts Medicare assignment.
Does Dr. Jonathan L. Siddon offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Siddon as offering telehealth services.
How many Medicare patients does Dr. Jonathan L. Siddon see?
CMS counts 299 Medicare patients who saw Dr. Siddon in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Jonathan L. Siddon bill to Medicare?
In 2024, Dr. Siddon's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and surgery: heart and blood vessels (36415).
What drugs does Dr. Jonathan L. Siddon prescribe most?
In 2024 Medicare Part D data, Dr. Siddon's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
Has Dr. Jonathan L. Siddon received payments from drug or device companies?
CMS Open Payments shows $8,569 in general payments to Dr. Siddon from 44 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Jonathan L. Siddon been practicing?
Dr. Siddon graduated from medical school in 2011, 15 years ago.
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