Dr. Peter H. MacArthur, MD
- Medicare services, 2024
- 9,591
- Medicare patients, 2024
- 360
- Part D claims, 2024
- 55
- MIPS score, 2024
- 83
- Hospital affiliations
- 6
- Practice address
- 3300 Gallows Rd, Falls Church, VA 22046
- Practice phone
- Call (703) 698-3659
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Inova Fairfax Hospital - Unit
Acute Care Hospital-Unit · Falls Church, Virginia
Find Dr. MacArthur's professional email, personal email and mobile number
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Dr. Peter H. MacArthur is a family medicine physician in Falls Church, Virginia
Dr. MacArthur practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia.
Dr. MacArthur's NPI, 1073803912, was assigned on April 12, 2011. Dr. MacArthur graduated from University of Maryland School of Medicine in 2011. Dr. MacArthur holds Virginia license 0101255966.
- NPI
- 1073803912NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527296813
- NPI enumeration date
- April 12, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 698-3659
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter H. MacArthur practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia
Dr. MacArthur's primary practice is Inova Fairfax Hospital - Unit, at 3300 Gallows Rd, Falls Church, VA 22046 in Falls Church City. The practice phone is (703) 698-3659.
- Inova Fairfax Hospital - Unit3300 Gallows Rd, Falls Church, VA 22046 · Falls Church CityPhone(703) 698-3659
Source: Dmand AI Affiliation Data
Dr. Peter H. MacArthur is affiliated with 8 sites of care and 1 medical group
Dr. MacArthur's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dr. MacArthur is also affiliated with Inova Fairfax Hospital. The medical group on file is Inova Urgent Care Center. Dmand AI also links Dr. MacArthur to 4 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peter H. MacArthur's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. MacArthur practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Inova Fairfax Hospital - Unit | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter H. MacArthur is one of 3,459 family medicine physicians in Virginia
Family medicine is Dr. MacArthur's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. MacArthur is board certified in sports medicine by the American Board of Emergency Medicine. Dr. MacArthur is licensed in Virginia.
Specialties and state licenses
- Family medicine, VirginiaPrimary
Family medicine physicians near Dr. MacArthur
Counts of family medicine physicians 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. Peter H. MacArthur billed Medicare for 9,591 services in 2024
CMS data shows 9,591 Medicare services from Dr. MacArthur across 13 procedure codes in 2024, for 360 Medicare patients. Medicare paid $130,446 for them. Every service was in an office.
Dr. MacArthur's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 4,7362024: 8,42878%
- Office and hospital visits
- 2023: 4692024: 52612%
- Surgery
- 2023: 2882024: 43551%
- Imaging
- 2023: 1672024: 20221%
Dr. MacArthur compared with the Virginia median for family medicine physicians, 2024
- Dr. MacArthur
- Virginia median
- Medicare services
- 9,591vs 54317.7 times
- Medicare patients
- 360vs 21766% above
- Part D claims
- 22vs 72197% below
Medians across 3,387 family medicine physicians in Virginia with Dmand AI profiles that report each measure.
Dr. MacArthur'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. MacArthur and other family medicine physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter H. MacArthur treated 360 Medicare patients in 2024, average age 74
CMS counts 360 Medicare patients who saw Dr. MacArthur in 2024. The largest group is 65 to 74, with 196 patients. 75% of them have arthritis, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. MacArthur's median patient age at 50, with 53% women.
Dr. MacArthur's Medicare patients by age, 2024
Dr. MacArthur's Medicare patients by sex, 2024
- Women22362%
- Men13738%
Chronic conditions among Dr. MacArthur's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure65%
- Ischemic heart disease21%
- Anxiety20%
- Diabetes20%
- Asthma16%
- Osteoporosis16%
Share of Medicare patients with each condition. A patient can have several.
Dr. MacArthur's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter H. MacArthur wrote 55 Medicare Part D claims in 2024
In 2024, Dr. MacArthur wrote 55 Medicare Part D claims for 43 patients. 98% of them were for generic drugs. CMS names the drug for 22 of them, across 1 drug with 11 or more claims each, at $68 in total drug cost. In 2023, CMS named 27 claims across 2 drugs.
Dr. MacArthur's Part D claims by kind of drug, 2024
- Generic54 claims98%
- Brand-name and other1 claims2%
Dr. MacArthur'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 272024: 2219%
Drugs named by CMS: 1 in 2024, 2 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. Peter H. MacArthur scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. MacArthur for performance year 2024, reported as part of a group. Dr. MacArthur accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. MacArthur's MIPS scores, performance year 2024
- 83of 100Final score
- 73of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 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. Peter H. MacArthur received $2,688 in industry payments from 2016 to 2022
CMS Open Payments shows 6 general payments to Dr. MacArthur from 3 drug and device companies from 2016 to 2022. Education make up the largest share, 68% of the total. Arthrex, Inc. paid the most, $1,857.
General payments to Dr. MacArthur by program year, 2016 to 2022
General payments to Dr. MacArthur by kind, 2016 to 2022
- Education$1,81768%
- Travel and lodging$64624%
- Food and beverage$2268%
Companies that paid Dr. MacArthur the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter H. MacArthur graduated from University of Maryland School of Medicine
Dr. MacArthur graduated from University of Maryland School of Medicine in 2011.
- Medical school
- Board certified in sports medicine
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter H. MacArthur'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Peter H. MacArthur
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. Peter H. MacArthur's NPI number?
Dr. Peter H. MacArthur's NPI number is 1073803912. It was assigned on April 12, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter H. MacArthur?
Dr. Peter H. MacArthur is a family medicine physician in Falls Church, Virginia. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Peter H. MacArthur practice?
Dr. MacArthur practices at 3300 Gallows Rd, Falls Church, VA 22046. Dr. MacArthur's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dmand AI also links Dr. MacArthur to 4 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Peter H. MacArthur's office phone number?
The practice phone on file for Dr. MacArthur is (703) 698-3659.
What is Dr. Peter H. MacArthur's medical license number?
Dr. MacArthur holds Virginia license 0101255966.
Which hospitals is Dr. Peter H. MacArthur affiliated with?
Dr. MacArthur is affiliated with Inova Fairfax Hospital. Dmand AI links Dr. MacArthur to 5 more hospitals.
What medical group is Dr. Peter H. MacArthur part of?
Dr. MacArthur is linked to Inova Urgent Care Center.
Does Dr. Peter H. MacArthur accept Medicare?
Yes. CMS data shows Dr. MacArthur billed Medicare for 9,591 services in 2024, and Dr. MacArthur accepts Medicare assignment.
What is Dr. Peter H. MacArthur's MIPS score?
Dr. MacArthur's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Peter H. MacArthur see?
CMS counts 360 Medicare patients who saw Dr. MacArthur in 2024, with an average age of 74.
Show 6 more questionsShow fewer questions
Is Dr. Peter H. MacArthur board certified?
Yes. Dr. MacArthur is board certified in sports medicine by the American Board of Emergency Medicine.
What services does Dr. Peter H. MacArthur bill to Medicare?
In 2024, Dr. MacArthur's most billed Medicare services were injected or infused drug (J7320), injected or infused drug (J3301) and office visit, established patient (99214).
Where did Dr. Peter H. MacArthur go to medical school?
Dr. MacArthur graduated from University of Maryland School of Medicine in 2011.
What drugs does Dr. Peter H. MacArthur prescribe most?
In 2024 Medicare Part D data, Dr. MacArthur's most prescribed drugs by claims were Meloxicam.
Has Dr. Peter H. MacArthur received payments from drug or device companies?
CMS Open Payments shows $2,688 in general payments to Dr. MacArthur from 3 companies from 2016 to 2022. The largest total came from Arthrex, Inc.
How long has Dr. Peter H. MacArthur been practicing?
Dr. MacArthur graduated from medical school in 2011, 15 years ago.
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