Dr. Jon William Mader, MD
- Medicare services, 2024
- 1,856
- Medicare patients, 2024
- 139
- Part D claims, 2024
- 620
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 44055 Riverside Pkwy, Leesburg, VA 20176
- Practice phone
- Call (703) 858-3220
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loudoun Internal Medicine Associates
Leesburg, Virginia
Find Dr. Mader'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. Jon William Mader is a physiatrist in Leesburg, Virginia
Dr. Mader practices at Loudoun Internal Medicine Associates in Leesburg, Virginia.
Dr. Mader's NPI, 1255656864, was assigned on April 7, 2010. Dr. Mader graduated from St. George's University School of Medicine in 2010. Dr. Mader holds Virginia license 0101259167.
- NPI
- 1255656864NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032408877
- NPI enumeration date
- April 7, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (703) 858-3220
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jon William Mader practices at Loudoun Internal Medicine Associates in Leesburg, Virginia
Dr. Mader's primary practice is Loudoun Internal Medicine Associates, at 44055 Riverside Pkwy, Leesburg, VA 20176 in Loudoun County. The practice phone is (703) 858-3220.
- Loudoun Internal Medicine Associates44055 Riverside Pkwy, Leesburg, VA 20176 · Loudoun CountyPhone(703) 858-3220
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jon William Mader is affiliated with 4 sites of care and 1 medical group
Dr. Mader's primary practice is Loudoun Internal Medicine Associates in Leesburg, Virginia. Dr. Mader is also affiliated with Inova Loudoun Hospital. The medical group on file is Loudoun Medical Group. Dmand AI also links Dr. Mader to 1 more hospital and 1 group practice or clinic, 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. Jon William Mader's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mader practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loudoun Internal Medicine Associates | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jon William Mader is one of 277 physiatrists in Virginia
Physical medicine and rehabilitation is Dr. Mader's primary specialty in the NPI Registry, under taxonomy code 208100000X. Dr. Mader is board certified in physical medicine & rehabilitation by the American Board of Physical Medicine and Rehabilitation. Dmand AI has Dr. Mader's licenses on file in 3 states: Virginia, Massachusetts and Pennsylvania.
Specialties and state licenses
- Physical medicine and rehabilitation, VirginiaPrimary
- Massachusetts license
- Pennsylvania license
Clinical focus
Dmand AI lists arthritis, back pain injection, fibromyalgia and chronic pain, joint pain, lower back pain, muscle pain, fibromyalgia, and limb pain and thoracic spine disorders among the conditions Dr. Mader treats.
Physiatrists near Dr. Mader
Counts of physiatrists 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. Jon William Mader billed Medicare for 1,856 services in 2024
CMS data shows 1,856 Medicare services from Dr. Mader across 10 procedure codes in 2024, for 139 Medicare patients. Medicare paid $55,351 for them. Every service was in an office.
Dr. Mader's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,0562024: 1,0005%
- Office and hospital visits
- 2023: 3852024: 34510%
- Other services
- 2023: 3142024: 3346%
- Surgery
- 2023: 1672024: 1567%
- Imaging
- 2023: 162024: 2131%
Dr. Mader compared with the Virginia median for physiatrists, 2024
- Dr. Mader
- Virginia median
- Medicare services
- 1,856vs 1,00086% above
- Medicare patients
- 139vs 25345% below
- Part D claims
- 571vs 1364.2 times
Medians across 237 physiatrists in Virginia with Dmand AI profiles that report each measure.
Dr. Mader'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. Mader and other physiatrists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jon William Mader treated 139 Medicare patients in 2024, average age 75
CMS counts 139 Medicare patients who saw Dr. Mader in 2024. The largest group is 75 to 84, with 60 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mader's median patient age at 63, with 49% women.
Dr. Mader's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mader's Medicare patients by sex, 2024
- Women6748%
- Men7252%
Chronic conditions among Dr. Mader's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease27%
- Diabetes26%
- Chronic kidney disease22%
- Anxiety19%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mader's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jon William Mader wrote 620 Medicare Part D claims in 2024
In 2024, Dr. Mader wrote 620 Medicare Part D claims for 133 patients. 99% of them were for generic drugs. CMS names the drug for 571 of them, across 10 drugs with 11 or more claims each, at $7,246 in total drug cost. In 2023, CMS named 445 claims across 11 drugs.
Dr. Mader's Part D claims by kind of drug, 2024
- Generic615 claims99%
- Brand-name and other5 claims1%
Dr. Mader'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. Mader's Part D claims, 2024
- Opioids27%165 of 620 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: 4452024: 57128%
Drugs named by CMS: 10 in 2024, 11 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. Jon William Mader scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Mader for performance year 2024, reported through an alternative payment model (APM). Dr. Mader accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mader as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Mader's MIPS scores, performance year 2024
- 93of 100Final score
- 85.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Jon William Mader received $965 in industry payments from 2016 to 2025
CMS Open Payments shows 29 general payments to Dr. Mader from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Ferring Pharmaceuticals Inc. paid the most, $144.
General payments to Dr. Mader by program year, 2016 to 2025
Companies that paid Dr. Mader the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jon William Mader has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Mader, most recently Loudoun's Favorite Doctor in 2018.
Awards and honors for Dr. Mader
- 2018
- Loudoun's Favorite Doctor
- 2017
- Loudoun's Favorite Doctor.
Source: Dmand AI Professional Profile Data
Dr. Jon William Mader graduated from St. George's University School of Medicine
Dr. Mader graduated from St. George's University School of Medicine in 2010. Dr. Mader is a member of AAPMR, AMA, APS, MMS and NASS.
- Medical school
- Board certified in physical medicine & rehabilitation
Source: Dmand AI Professional Profile Data
Dr. Jon William Mader accepts plans from 17 insurance carriers
Dr. Mader is in network with 17 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Elevance
- Aetna
- United Healthcare
- CareFirst BlueCross BlueShield
- Cigna
- HCSC
- Molina
- Aspirus Health Plan
- +9 more carriersWith a free account
Plan types Dr. Mader accepts, by number of carriers
- PPO11
- HMO10
- Medicare10
- EPO4
- POS4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Jon William Mader'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Jon William Mader
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. Jon William Mader's NPI number?
Dr. Jon William Mader's NPI number is 1255656864. It was assigned on April 7, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Jon William Mader?
Dr. Jon William Mader is a physiatrist in Leesburg, Virginia. The primary specialty in the NPI Registry is Physical Medicine & Rehabilitation Physician (taxonomy code 208100000X).
Where does Dr. Jon William Mader practice?
Dr. Mader practices at 44055 Riverside Pkwy, Leesburg, VA 20176. Dr. Mader's primary practice is Loudoun Internal Medicine Associates in Leesburg, Virginia. Dmand AI also links Dr. Mader to 1 hospital and 1 group practice or clinic.
What is Dr. Jon William Mader's office phone number?
The practice phone on file for Dr. Mader is (703) 858-3220.
What is Dr. Jon William Mader's medical license number?
Dr. Mader holds Virginia license 0101259167, one of the licenses on file in 3 states.
Which states has Dr. Jon William Mader been licensed in?
Dmand AI has state licenses on file for Dr. Mader in Virginia (2015 to 2026), Massachusetts (2013 to 2016) and Pennsylvania (2010 to 2011).
Which hospitals is Dr. Jon William Mader affiliated with?
Dr. Mader is affiliated with Inova Loudoun Hospital. Dmand AI links Dr. Mader to 1 more hospital.
What medical group is Dr. Jon William Mader part of?
Dr. Mader is linked to Loudoun Medical Group.
Does Dr. Jon William Mader accept Medicare?
Yes. CMS data shows Dr. Mader billed Medicare for 1,856 services in 2024, and Dr. Mader accepts Medicare assignment.
Does Dr. Jon William Mader offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mader as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Jon William Mader's MIPS score?
Dr. Mader's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Jon William Mader see?
CMS counts 139 Medicare patients who saw Dr. Mader in 2024, with an average age of 75.
Is Dr. Jon William Mader board certified?
Yes. Dr. Mader is board certified in physical medicine & rehabilitation by the American Board of Physical Medicine and Rehabilitation.
What services does Dr. Jon William Mader bill to Medicare?
In 2024, Dr. Mader's most billed Medicare services were injected or infused drug (J3301), medicare temporary code (Q9967) and office visit, established patient (99214).
Where did Dr. Jon William Mader go to medical school?
Dr. Mader graduated from St. George's University School of Medicine in 2010.
What drugs does Dr. Jon William Mader prescribe most?
In 2024 Medicare Part D data, Dr. Mader's most prescribed drugs by claims were Gabapentin, Celecoxib and Tramadol HCl.
Has Dr. Jon William Mader received payments from drug or device companies?
CMS Open Payments shows $965 in general payments to Dr. Mader from 17 companies from 2016 to 2025. The largest total came from Ferring Pharmaceuticals Inc.
How long has Dr. Jon William Mader been practicing?
Dr. Mader graduated from medical school in 2010, 16 years ago.
What insurance does Dr. Jon William Mader accept?
Dr. Mader is in network with 17 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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