Karthik Sundaram, M.D.
NPI 1912317009 · Diagnostic Radiology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karthik Sundaram, M.D. is a Diagnostic Radiology Physician provider in Philadelphia, PA (NPI 1912317009).
Provider details
- NPI number
- 1912317009
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA10924600 (NJ)
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 tenure25% of score
12 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
1,321 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) |
|---|---|---|
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 240 | $87 |
| X-Ray of Abdomen, 1 View74018 | 231 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 119 | $134 |
| Mri Scan of Abdomen Before and After Contrast74183 | 94 | $103 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 83 | $83 |
| X-Ray of Chest, 1 View71045 | 79 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$100,000 across 1 record (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
- 2014-04-29
- Last updated
- 2020-10-14
- Certified
- 2020-10-14
Frequently asked questions
- What is Karthik Sundaram's NPI number?
- Karthik Sundaram's National Provider Identifier (NPI) is 1912317009, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karthik Sundaram's specialty?
- Karthik Sundaram is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karthik Sundaram located?
- Karthik Sundaram's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4238.
- What is Karthik Sundaram's phone number?
- The practice phone number listed in the NPPES registry for Karthik Sundaram is (215) 662-3000.
- Does Karthik Sundaram accept Medicare?
- Karthik Sundaram is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karthik Sundaram's NPI active?
- Yes — Karthik Sundaram's NPI (1912317009) is active in the NPPES registry as of the last update on 2020-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.