Karthik Ganapathi, MD, PHD
NPI 1033344148 · Anatomic Pathology & Clinical Pathology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karthik Ganapathi, MD, PHD is a Anatomic Pathology & Clinical Pathology Physician provider in San Francisco, CA (NPI 1033344148).
Provider details
- NPI number
- 1033344148
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A142581 (CA)
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
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,015 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 | 434 | $31 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 123 | $46 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 119 | $42 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 118 | $39 |
| Bone Marrow, Smear Interpretation85097 | 96 | $54 |
| Surgical Pathology Consultation and Report on Referred Slides Prepared Elsewhere88321 | 30 | $93 |
Practice location
Mailing address
Additional practice locations (1)
- 74 Days Park# 6Buffalo, NY 14201-2027Phone: (716) 882-2950
Registry dates
- Enumerated
- 2009-05-19
- Last updated
- 2018-03-17
Frequently asked questions
- What is Karthik Ganapathi's NPI number?
- Karthik Ganapathi's National Provider Identifier (NPI) is 1033344148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karthik Ganapathi's specialty?
- Karthik Ganapathi is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Karthik Ganapathi located?
- Karthik Ganapathi's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Karthik Ganapathi's phone number?
- The practice phone number listed in the NPPES registry for Karthik Ganapathi is (415) 476-1000.
- Does Karthik Ganapathi accept Medicare?
- Karthik Ganapathi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karthik Ganapathi's NPI active?
- Yes — Karthik Ganapathi's NPI (1033344148) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.