Alexandra Green, MD
NPI 1679990899 · Geriatric Medicine (Internal Medicine) Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Green, MD is a Geriatric Medicine (Internal Medicine) Physician provider in La Jolla, CA (NPI 1679990899).
Provider details
- NPI number
- 1679990899
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
139 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 61 | $132 |
| Advance Care Planning, First 30 Minutes99497 | 39 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 28 | $79 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 11 | $174 |
Typical Medicare-allowed amounts for these services range $76–$174 (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.
Practice location
Mailing address
Additional practice locations (1)
- 4150 V St#1100Sacramento, CA 95817-1460Phone: (916) 734-2737
Registry dates
- Enumerated
- 2014-03-26
- Last updated
- 2022-07-21
Frequently asked questions
- What is Alexandra Green's NPI number?
- Alexandra Green's National Provider Identifier (NPI) is 1679990899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Green's specialty?
- Alexandra Green is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Alexandra Green located?
- Alexandra Green's practice location on file with NPPES is 10666 N Torrey Pines Rd, La Jolla, CA 92037-1027.
- What is Alexandra Green's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Green is (858) 554-6158.
- Does Alexandra Green accept Medicare?
- Alexandra Green is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Green's NPI active?
- Yes — Alexandra Green's NPI (1679990899) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.