John Luis Viechweg, MD
NPI 1790263150 · Internal Medicine Physician · Gainesville, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Luis Viechweg, MD is a Internal Medicine Physician provider in Gainesville, GA (NPI 1790263150).
Provider details
- NPI number
- 1790263150
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 110650 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,369 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 515 | $162 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 382 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 260 | $111 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 171 | $106 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 29 | $162 |
| Advance Care Planning, First 30 Minutes99497 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 32 | 31 |
| Apixabanbrand: Eliquis | 30 | 16 |
| Amlodipine Besylate | 26 | 16 |
| Prednisone | 21 | 21 |
| Torsemide | 17 | 17 |
| Furosemide | 16 | 13 |
| Carvedilol | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-07-29
- Last updated
- 2026-02-23
- Certified
- 2026-02-23
Frequently asked questions
- What is John Luis Viechweg's NPI number?
- John Luis Viechweg's National Provider Identifier (NPI) is 1790263150, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Luis Viechweg's specialty?
- John Luis Viechweg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Luis Viechweg located?
- John Luis Viechweg's practice location on file with NPPES is 743 Spring St Ne, Gainesville, GA 30501-3715.
- What is John Luis Viechweg's phone number?
- The practice phone number listed in the NPPES registry for John Luis Viechweg is (770) 219-9000.
- Does John Luis Viechweg accept Medicare?
- John Luis Viechweg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Luis Viechweg's NPI active?
- Yes — John Luis Viechweg's NPI (1790263150) is active in the NPPES registry as of the last update on 2026-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.