Chockalingam Narayanan, M.D.
NPI 1508276296 · Clinical Cardiac Electrophysiology Physician · Galveston, TX
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chockalingam Narayanan, M.D. is a Clinical Cardiac Electrophysiology Physician provider in Galveston, TX (NPI 1508276296).
Provider details
- NPI number
- 1508276296
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47721 (TX)
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
1,496 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 344 | $95 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 164 | $24 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 145 | $16 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 134 | $29 |
| Evaluation of Single, Dual, Or Multiple Lead Implantable Defibrillator System, Remote Up to 90 Days93295 | 105 | $36 |
| Programming of Dual Lead Pacemaker System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 409 | 105 |
| Metoprolol Succinate | 145 | 55 |
| Metoprolol Tartrate | 122 | 35 |
| Amiodarone Hcl | 110 | 46 |
| Atorvastatin Calcium | 43 | 12 |
| Flecainide Acetate | 42 | 12 |
| Clopidogrel Bisulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,790 across 101 records (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
- 2014-05-02
- Last updated
- 2026-03-20
- Certified
- 2026-03-20
Frequently asked questions
- What is Chockalingam Narayanan's NPI number?
- Chockalingam Narayanan's National Provider Identifier (NPI) is 1508276296, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chockalingam Narayanan's specialty?
- Chockalingam Narayanan is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Chockalingam Narayanan located?
- Chockalingam Narayanan's practice location on file with NPPES is 1005 Harborside Dr 6th Fl, Galveston, TX 77555-1501.
- What is Chockalingam Narayanan's phone number?
- The practice phone number listed in the NPPES registry for Chockalingam Narayanan is (409) 772-2328.
- Does Chockalingam Narayanan accept Medicare?
- Chockalingam Narayanan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chockalingam Narayanan's NPI active?
- Yes — Chockalingam Narayanan's NPI (1508276296) is active in the NPPES registry as of the last update on 2026-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.