Sivasubramanian Narayanan, MD
NPI 1376608208 · Internal Medicine Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sivasubramanian Narayanan, MD is a Internal Medicine Physician provider in Bronx, NY (NPI 1376608208).
Provider details
- NPI number
- 1376608208
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 001673 (NY)
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
54 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 29 | $135 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 25 | $80 |
Typical Medicare-allowed amounts for these services range $80–$135 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 | 66 | 60 |
| Gabapentin | 34 | 21 |
| Ibuprofen | 28 | 23 |
| Fluticasone Propionate | 26 | 23 |
| Azithromycin | 25 | 25 |
| Chlorhexidine Gluconate | 24 | 24 |
| Amlodipine Besylate | 23 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 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
- 2006-12-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sivasubramanian Narayanan's NPI number?
- Sivasubramanian Narayanan's National Provider Identifier (NPI) is 1376608208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sivasubramanian Narayanan's specialty?
- Sivasubramanian Narayanan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sivasubramanian Narayanan located?
- Sivasubramanian Narayanan's practice location on file with NPPES is 234 E 149th St, Bronx, NY 10451-5504.
- What is Sivasubramanian Narayanan's phone number?
- The practice phone number listed in the NPPES registry for Sivasubramanian Narayanan is (718) 579-6010.
- Does Sivasubramanian Narayanan accept Medicare?
- Sivasubramanian Narayanan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sivasubramanian Narayanan's NPI active?
- Yes — Sivasubramanian Narayanan's NPI (1376608208) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.