Christopher Gunasekera, MD
NPI 1275597452 · Internal Medicine Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Gunasekera, MD is a Internal Medicine Physician provider in San Jose, CA (NPI 1275597452).
Provider details
- NPI number
- 1275597452
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A41868 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 37 | 37 |
| Atorvastatin Calcium | 30 | 25 |
| Amlodipine Besylate | 27 | 25 |
| Azelastine Hcl | 27 | 26 |
| Molnupiravirbrand: Lagevrio (eua) | 26 | 26 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 24 | 24 |
| Azithromycin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Christopher Gunasekera's NPI number?
- Christopher Gunasekera's National Provider Identifier (NPI) is 1275597452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Gunasekera's specialty?
- Christopher Gunasekera is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Gunasekera located?
- Christopher Gunasekera's practice location on file with NPPES is 751 S Bascom Ave, San Jose, CA 95128-2604.
- What is Christopher Gunasekera's phone number?
- The practice phone number listed in the NPPES registry for Christopher Gunasekera is (408) 885-4545.
- Does Christopher Gunasekera accept Medicare?
- Christopher Gunasekera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Gunasekera's NPI active?
- Yes — Christopher Gunasekera's NPI (1275597452) 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.