Alexandra Close, APRN
NPI 1912686684 · Family Nurse Practitioner · Greenbrae, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Close, APRN is a Family Nurse Practitioner provider in Greenbrae, CA (NPI 1912686684).
Provider details
- NPI number
- 1912686684
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 352463 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
2 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
213 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) |
|---|---|---|
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 46 | $3 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 44 | $168 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $119 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 32 | $9 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 100 | 51 |
| Levothyroxine Sodiumbrand: Synthroid | 72 | 29 |
| Metformin Hclbrand: Metformin Hcl Er | 70 | 38 |
| Tirzepatidebrand: Mounjaro | 67 | 29 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 51 | 22 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-07-11
- Last updated
- 2026-05-10
- Certified
- 2026-05-10
Frequently asked questions
- What is Alexandra Close's NPI number?
- Alexandra Close's National Provider Identifier (NPI) is 1912686684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Close's specialty?
- Alexandra Close is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexandra Close located?
- Alexandra Close's practice location on file with NPPES is 900 S Eliseo Dr Ste 201, Greenbrae, CA 94904-2153.
- What is Alexandra Close's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Close is (415) 461-1780.
- Does Alexandra Close accept Medicare?
- Alexandra Close is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Close's NPI active?
- Yes — Alexandra Close's NPI (1912686684) is active in the NPPES registry as of the last update on 2026-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.