Dr. Julia R. Den Hartog, MD

  • Orange, VA
  • Internist
NPI1750558870PAC ID3173792181
Medicare services, 2024
634
Medicare patients, 2024
185
Part D claims, 2024
8,192
Publications
2
MIPS score, 2024
86
Practice address
661 University Ln, Orange, VA 22960
Practice phone
Call (434) 295-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

University of Virginia Physicians Group

Orange, Virginia

See all 6 affiliations

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Dr. Julia R. Den Hartog is an internist in Orange, Virginia

Dr. Den Hartog practices at University of Virginia Physicians Group in Orange, Virginia.

Dr. Den Hartog's NPI, 1750558870, was assigned on May 8, 2008. Dr. Den Hartog graduated from Perelman School of Med at the University of Pennsylvania in 2008. Dr. Den Hartog holds Virginia license 0101249648.

NPI and contact details
Medicare PAC ID
3173792181
NPI enumeration date
May 8, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(434) 295-1000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Julia R. Den Hartog practices at University of Virginia Physicians Group in Orange, Virginia

Dr. Den Hartog's primary practice is University of Virginia Physicians Group, at 661 University Ln, Orange, VA 22960 in Orange County. The practice phone is (434) 295-1000.

  • University of Virginia Physicians Group
    661 University Ln, Orange, VA 22960 · Orange CountyPhone(434) 295-1000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Julia R. Den Hartog is affiliated with 5 sites of care and 1 medical group

Dr. Den Hartog's primary practice is University of Virginia Physicians Group in Orange, Virginia. Dr. Den Hartog is also affiliated with University Medical Center. The medical group on file is UVA Physicians Group. Dmand AI also links Dr. Den Hartog to 1 more hospital, 1 group practice or clinic and 1 home health agency, each named with a free account.

See all 6 affiliations for Dr. Den Hartog

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Julia R. Den Hartog's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Den Hartog practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
University of Virginia Physicians GroupAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Julia R. Den Hartog is one of 3,339 internists in Virginia

Internal medicine is Dr. Den Hartog's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Den Hartog is licensed in Virginia.

Specialties and state licenses

  • Internal medicine, VirginiaPrimaryLicense 0101249648 · taxonomy 207R00000X

Internists near Dr. Den Hartog

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. Julia R. Den Hartog billed Medicare for 634 services in 2024

CMS data shows 634 Medicare services from Dr. Den Hartog across 5 procedure codes in 2024, for 185 Medicare patients. Medicare paid $31,911 for them. Every service was in an office.

Medicare services, 2024634
Medicare patients185
Paid by Medicare$31,911
Procedure codes5

Dr. Den Hartog's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3852024: 34710%
Other services
2023: 742024: 287288%

Dr. Den Hartog compared with the Virginia median for internists, 2024

  • Dr. Den Hartog
  • Virginia median
Medicare services
634vs 607Close to median
Medicare patients
185vs 24625% below
Part D claims
7,521vs 22433.6 times

Medians across 3,182 internists in Virginia with Dmand AI profiles that report each measure.

Dr. Den Hartog'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.

See all procedures by Dr. Den Hartog

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Julia R. Den Hartog treated 185 Medicare patients in 2024, average age 76

CMS counts 185 Medicare patients who saw Dr. Den Hartog in 2024. The largest group is 65 to 74, with 68 patients. 74% of them have high blood pressure, and 52% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Den Hartog's median patient age at 70, with 67% women.

Medicare patients, 2024185
Average age76
Average risk score1.10
Also on Medicaid15%

Dr. Den Hartog's Medicare patients by age, 2024

Dr. Den Hartog's Medicare patients by sex, 2024

  • Women12366%
  • Men6234%

Chronic conditions among Dr. Den Hartog's Medicare patients, 2024

  1. High blood pressure74%
  2. High cholesterol52%
  3. Arthritis37%
  4. Diabetes33%
  5. Ischemic heart disease23%
  6. Cancer18%
  7. Mood disorders18%
  8. Atrial fibrillation17%

Share of Medicare patients with each condition. A patient can have several.

Dr. Den Hartog's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women67%
  • Men33%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Julia R. Den Hartog wrote 8,192 Medicare Part D claims in 2024

In 2024, Dr. Den Hartog wrote 8,192 Medicare Part D claims for 582 patients. 83% of them were for generic drugs. CMS names the drug for 7,521 of them, across 132 drugs with 11 or more claims each, at $708,803 in total drug cost. In 2023, CMS named 6,584 claims across 127 drugs.

Part D claims, 20248,192
Drugs named by CMS132
Total drug cost$708,803
Part D patients582

Dr. Den Hartog's Part D claims by kind of drug, 2024

  • Generic6,790 claims83%
  • Brand-name1,311 claims16%
  • Other91 claims1%

Dr. Den Hartog'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. Den Hartog's Part D claims, 2024

  • Opioids3%266 of 8,192 claims
  • Antibiotics1%112 of 8,192 claims
  • Antipsychotics, patients 65 and over0%36 of 8,192 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: 6,5842024: 7,52114%

Drugs named by CMS: 132 in 2024, 127 in 2023.

See all prescribing by Dr. Den Hartog

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. Julia R. Den Hartog scored 86 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Den Hartog for performance year 2024, reported as part of a group. Dr. Den Hartog accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Den Hartog's MIPS scores, performance year 2024

  • 86of 100Final score
  • 79.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 75of 100Cost

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. Julia R. Den Hartog has 2 publications on record

Dmand AI links 2 papers to Dr. Den Hartog in 2012. Dr. Den Hartog's most frequent co-authors are David R. Burt, MD, Max A. Luna, MD and William A. Petri, MD.

Papers2

Dr. Den Hartog's most frequent co-authors

Recent publications by Dr. Den Hartog

See all 2 publications and co-authors

See who Dr. Den Hartog researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Den Hartog works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Julia R. Den Hartog graduated from Perelman School of Med at the University of Pennsylvania

Dr. Den Hartog graduated from Perelman School of Med at the University of Pennsylvania in 2008.

  1. Medical schoolPerelman School of Med at the University of Pennsylvania

Source: Dmand AI Professional Profile Data

Sources for Dr. Julia R. Den Hartog's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Julia R. Den Hartog

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. Julia R. Den Hartog's NPI number?

Dr. Julia R. Den Hartog's NPI number is 1750558870. It was assigned on May 8, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Julia R. Den Hartog?

Dr. Julia R. Den Hartog is an internist in Orange, Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Julia R. Den Hartog practice?

Dr. Den Hartog practices at 661 University Ln, Orange, VA 22960. Dr. Den Hartog's primary practice is University of Virginia Physicians Group in Orange, Virginia. Dmand AI also links Dr. Den Hartog to 1 hospital, 1 group practice or clinic and 1 home health agency.

What is Dr. Julia R. Den Hartog's office phone number?

The practice phone on file for Dr. Den Hartog is (434) 295-1000.

What is Dr. Julia R. Den Hartog's medical license number?

Dr. Den Hartog holds Virginia license 0101249648.

Which hospitals is Dr. Julia R. Den Hartog affiliated with?

Dr. Den Hartog is affiliated with University Medical Center. Dmand AI links Dr. Den Hartog to 1 more hospital.

What medical group is Dr. Julia R. Den Hartog part of?

Dr. Den Hartog is linked to UVA Physicians Group.

Does Dr. Julia R. Den Hartog accept Medicare?

Yes. CMS data shows Dr. Den Hartog billed Medicare for 634 services in 2024, and Dr. Den Hartog accepts Medicare assignment.

What is Dr. Julia R. Den Hartog's MIPS score?

Dr. Den Hartog's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.

How many Medicare patients does Dr. Julia R. Den Hartog see?

CMS counts 185 Medicare patients who saw Dr. Den Hartog in 2024, with an average age of 76.

Show 6 more questionsShow fewer questions

What services does Dr. Julia R. Den Hartog bill to Medicare?

In 2024, Dr. Den Hartog's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).

Where did Dr. Julia R. Den Hartog go to medical school?

Dr. Den Hartog graduated from Perelman School of Med at the University of Pennsylvania in 2008.

What drugs does Dr. Julia R. Den Hartog prescribe most?

In 2024 Medicare Part D data, Dr. Den Hartog's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Gabapentin.

How long has Dr. Julia R. Den Hartog been practicing?

Dr. Den Hartog graduated from medical school in 2008, 18 years ago.

Does Dr. Julia R. Den Hartog do research?

Dmand AI links 2 publications to Dr. Den Hartog.

Who does Dr. Julia R. Den Hartog publish with?

Dr. Den Hartog's most frequent co-authors are David R. Burt, MD (2 shared papers), Max A. Luna, MD (1 shared paper) and William A. Petri, MD (1 shared paper).

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