Dr. Louis Kenneth Zweig, MD
- Medicare services, 2024
- 1,592
- Medicare patients, 2024
- 186
- Part D claims, 2024
- 2,034
- Hospital affiliations
- 3
- Industry payments
- $2,010
- Practice address
- 2445 Army Navy Dr, Arlington, VA 22206
- Practice phone
- Call (703) 379-8879
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northern Virginia Family Practice Associates
Arlington, Virginia
Find Dr. Zweig'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. Louis Kenneth Zweig is an internist in Arlington, Virginia
Dr. Zweig practices at Northern Virginia Family Practice Associates in Arlington, Virginia.
Dr. Zweig's NPI, 1730197591, was assigned on August 4, 2006. Dr. Zweig graduated from Ohio State University College of Medicine in 1998. Dr. Zweig holds Virginia license 0101227887.
- NPI
- 1730197591NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042201642
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (703) 379-8879
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Louis Kenneth Zweig practices at Northern Virginia Family Practice Associates in Arlington, Virginia
Dr. Zweig's primary practice is Northern Virginia Family Practice Associates, at 2445 Army Navy Dr, Arlington, VA 22206 in Arlington County. The practice phone is (703) 379-8879.
- Northern Virginia Family Practice Associates2445 Army Navy Dr, Arlington, VA 22206 · Arlington CountyPhone(703) 379-8879
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Louis Kenneth Zweig is affiliated with 6 sites of care and 1 medical group
Dr. Zweig's primary practice is Northern Virginia Family Practice Associates in Arlington, Virginia. Dr. Zweig is also affiliated with VHC Health. The medical group on file is Northern Virginia Family Practice. Dmand AI also links Dr. Zweig to 2 more hospitals, 1 group practice or clinic and 1 skilled nursing facility, 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. Louis Kenneth Zweig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zweig practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Virginia Family Practice Associates | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Louis Kenneth Zweig is one of 3,339 internists in Virginia
Internal medicine is Dr. Zweig's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zweig is licensed in Virginia.
Specialties and state licenses
- Internal medicine, VirginiaPrimary
Internists near Dr. Zweig
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. Louis Kenneth Zweig billed Medicare for 1,592 services in 2024
CMS data shows 1,592 Medicare services from Dr. Zweig across 20 procedure codes in 2024, for 186 Medicare patients. Medicare paid $109,721 for them. Every service was in an office.
Dr. Zweig's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 2412024: 680182%
- Tests and treatments
- 2023: 2362024: 46798%
- Office and hospital visits
- 2023: 5132024: 44513%
Dr. Zweig compared with the Virginia median for internists, 2024
- Dr. Zweig
- Virginia median
- Medicare services
- 1,592vs 6072.6 times
- Medicare patients
- 186vs 24624% below
- Part D claims
- 1,502vs 2246.7 times
Medians across 3,182 internists in Virginia with Dmand AI profiles that report each measure.
Dr. Zweig'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. Zweig and other internists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Louis Kenneth Zweig treated 186 Medicare patients in 2024, average age 77
CMS counts 186 Medicare patients who saw Dr. Zweig in 2024. The largest group is 75 to 84, with 86 patients. 70% of them have high blood pressure, and 49% have high cholesterol. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zweig's median patient age at 66, with 37% women.
Dr. Zweig's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zweig's Medicare patients by sex, 2024
- Women7440%
- Men11260%
Chronic conditions among Dr. Zweig's Medicare patients, 2024
- High blood pressure70%
- High cholesterol49%
- Arthritis32%
- Anxiety18%
- Chronic kidney disease18%
- Mood disorders17%
- Osteoporosis16%
- Atrial fibrillation15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zweig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women37%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Louis Kenneth Zweig wrote 2,034 Medicare Part D claims in 2024
In 2024, Dr. Zweig wrote 2,034 Medicare Part D claims for 177 patients. 88% of them were for generic drugs. CMS names the drug for 1,502 of them, across 51 drugs with 11 or more claims each, at $169,211 in total drug cost. In 2023, CMS named 1,123 claims across 43 drugs.
Dr. Zweig's Part D claims by kind of drug, 2024
- Generic1,784 claims88%
- Brand-name and other250 claims12%
Dr. Zweig'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. Zweig's Part D claims, 2024
- Opioids1%21 of 2,034 claims
- Antibiotics3%60 of 2,034 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: 1,1232024: 1,50234%
Drugs named by CMS: 51 in 2024, 43 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. Louis Kenneth Zweig offers telehealth to Medicare patients
Dr. Zweig accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zweig as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Louis Kenneth Zweig received $2,010 in industry payments from 2016 to 2025
CMS Open Payments shows 94 general payments to Dr. Zweig from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $408.
General payments to Dr. Zweig by program year, 2016 to 2025
Companies that paid Dr. Zweig 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. Louis Kenneth Zweig graduated from Ohio State University College of Medicine
Dr. Zweig graduated from Ohio State University College of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Louis Kenneth Zweig'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)Doctors and Clinicians Utilization Data (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. Louis Kenneth Zweig
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. Louis Kenneth Zweig's NPI number?
Dr. Louis Kenneth Zweig's NPI number is 1730197591. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Louis Kenneth Zweig?
Dr. Louis Kenneth Zweig is an internist in Arlington, Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Louis Kenneth Zweig practice?
Dr. Zweig practices at 2445 Army Navy Dr, Arlington, VA 22206. Dr. Zweig's primary practice is Northern Virginia Family Practice Associates in Arlington, Virginia. Dmand AI also links Dr. Zweig to 2 hospitals, 1 group practice or clinic and 1 skilled nursing facility.
What is Dr. Louis Kenneth Zweig's office phone number?
The practice phone on file for Dr. Zweig is (703) 379-8879.
What is Dr. Louis Kenneth Zweig's medical license number?
Dr. Zweig holds Virginia license 0101227887.
Which hospitals is Dr. Louis Kenneth Zweig affiliated with?
Dr. Zweig is affiliated with VHC Health. Dmand AI links Dr. Zweig to 2 more hospitals.
What medical group is Dr. Louis Kenneth Zweig part of?
Dr. Zweig is linked to Northern Virginia Family Practice.
Does Dr. Louis Kenneth Zweig accept Medicare?
Yes. CMS data shows Dr. Zweig billed Medicare for 1,592 services in 2024, and Dr. Zweig accepts Medicare assignment.
Does Dr. Louis Kenneth Zweig offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zweig as offering telehealth services.
How many Medicare patients does Dr. Louis Kenneth Zweig see?
CMS counts 186 Medicare patients who saw Dr. Zweig in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Louis Kenneth Zweig bill to Medicare?
In 2024, Dr. Zweig's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Louis Kenneth Zweig go to medical school?
Dr. Zweig graduated from Ohio State University College of Medicine in 1998.
What drugs does Dr. Louis Kenneth Zweig prescribe most?
In 2024 Medicare Part D data, Dr. Zweig's most prescribed drugs by claims were Rosuvastatin Calcium, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Louis Kenneth Zweig received payments from drug or device companies?
CMS Open Payments shows $2,010 in general payments to Dr. Zweig from 21 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Louis Kenneth Zweig been practicing?
Dr. Zweig graduated from medical school in 1998, 28 years ago.
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