Kartik Viswanathan, MD PHD
NPI 1396191417 · Anatomic Pathology & Clinical Pathology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kartik Viswanathan, MD PHD is a Anatomic Pathology & Clinical Pathology Physician provider in Atlanta, GA (NPI 1396191417).
Provider details
- NPI number
- 1396191417
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20-429 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 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
1,727 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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 367 | $27 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 363 | $35 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 153 | $27 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 90 | $67 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 90 | $34 |
| Cell Examination of Specimen, Concentration Technique88108 | 76 | $22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-05-07
- Last updated
- 2024-01-24
- Certified
- 2024-01-24
Frequently asked questions
- What is Kartik Viswanathan's NPI number?
- Kartik Viswanathan's National Provider Identifier (NPI) is 1396191417, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kartik Viswanathan's specialty?
- Kartik Viswanathan is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Kartik Viswanathan located?
- Kartik Viswanathan's practice location on file with NPPES is 550 Peachtree St Ne, Atlanta, GA 30308-2212.
- What is Kartik Viswanathan's phone number?
- The practice phone number listed in the NPPES registry for Kartik Viswanathan is (404) 727-8657.
- Does Kartik Viswanathan accept Medicare?
- Kartik Viswanathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kartik Viswanathan's NPI active?
- Yes — Kartik Viswanathan's NPI (1396191417) is active in the NPPES registry as of the last update on 2024-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.