Louis Zweig, MD
NPI 1730197591 · Internal Medicine Physician · Arlington, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Zweig, MD is a Internal Medicine Physician provider in Arlington, VA (NPI 1730197591).
Provider details
- NPI number
- 1730197591
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101227887 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,435 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 269 | $18 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 253 | $142 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 123 | $143 |
| Ultrasound Study of Arm and Leg Arteries93922 | 116 | $95 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 91 | $21 |
| Test Or Measurement for Functional Capacity, Each 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 114 | 36 |
| Atorvastatin Calcium | 108 | 29 |
| Levothyroxine Sodium | 69 | 17 |
| Pravastatin Sodium | 66 | 22 |
| Tamsulosin Hcl | 59 | 17 |
| Metoprolol Succinate | 54 | 18 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$699 across 32 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Louis Zweig's NPI number?
- Louis Zweig's National Provider Identifier (NPI) is 1730197591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Zweig's specialty?
- Louis Zweig is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Zweig located?
- Louis Zweig's practice location on file with NPPES is 2445 Army Navy Dr Ste 400, Arlington, VA 22206-2988.
- What is Louis Zweig's phone number?
- The practice phone number listed in the NPPES registry for Louis Zweig is (703) 379-8879.
- Does Louis Zweig accept Medicare?
- Louis Zweig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Zweig's NPI active?
- Yes — Louis Zweig's NPI (1730197591) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.