Courtney Summers-Day, MD
NPI 1124288873 · Family Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Courtney Summers-Day, MD is a Family Medicine Physician provider in San Diego, CA (NPI 1124288873).
Provider details
- NPI number
- 1124288873
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A112781 (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
18 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 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 271 | 77 |
| Amlodipine Besylate | 204 | 62 |
| Metformin Hcl | 192 | 66 |
| Lisinopril | 184 | 54 |
| Rosuvastatin Calcium | 137 | 41 |
| Levothyroxine Sodium | 136 | 33 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-16
- Last updated
- 2024-07-01
- Certified
- 2024-07-01
Frequently asked questions
- What is Courtney Summers-Day's NPI number?
- Courtney Summers-Day's National Provider Identifier (NPI) is 1124288873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Courtney Summers-Day's specialty?
- Courtney Summers-Day is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Courtney Summers-Day located?
- Courtney Summers-Day's practice location on file with NPPES is 1016 Outer Rd, San Diego, CA 92154-1351.
- What is Courtney Summers-Day's phone number?
- The practice phone number listed in the NPPES registry for Courtney Summers-Day is (619) 429-3733.
- Does Courtney Summers-Day accept Medicare?
- Courtney Summers-Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Courtney Summers-Day's NPI active?
- Yes — Courtney Summers-Day's NPI (1124288873) is active in the NPPES registry as of the last update on 2024-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.