Chittur Sivaram, MD
NPI 1265401905 · Cardiovascular Disease Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chittur Sivaram, MD is a Cardiovascular Disease Physician provider in Oklahoma City, OK (NPI 1265401905).
Provider details
- NPI number
- 1265401905
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 18345 (OK)
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
20 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
964 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 327 | $64 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 172 | $3 |
| Ultrasound of Heart, Follow-Up93308 | 125 | $23 |
| Ultrasound of Heart Blood Flow, Valves and Chambers, Follow-Up93321 | 123 | $7 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 79 | $90 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 53 | 13 |
| Apixabanbrand: Eliquis | 50 | — |
| Metoprolol Succinate | 31 | — |
| Amlodipine Besylate | 24 | — |
| Ticagrelorbrand: Brilinta | 18 | — |
| Chlorthalidone | 18 | — |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 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
- 2006-03-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Chittur Sivaram's NPI number?
- Chittur Sivaram's National Provider Identifier (NPI) is 1265401905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chittur Sivaram's specialty?
- Chittur Sivaram is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Chittur Sivaram located?
- Chittur Sivaram's practice location on file with NPPES is 825 Ne 10th St, Oklahoma City, OK 73104-5417.
- What is Chittur Sivaram's phone number?
- The practice phone number listed in the NPPES registry for Chittur Sivaram is (405) 271-7001.
- Does Chittur Sivaram accept Medicare?
- Chittur Sivaram is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chittur Sivaram's NPI active?
- Yes — Chittur Sivaram's NPI (1265401905) 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.