Alex Linker, M.D.
NPI 1881987519 · Emergency Medicine Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alex Linker, M.D. is a Emergency Medicine Physician provider in Mountain View, CA (NPI 1881987519).
Provider details
- NPI number
- 1881987519
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A122263 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 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
511 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 137 | $162 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 101 | $116 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 79 | $208 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 71 | $140 |
| Urinalysis, Manual Test81002 | 41 | $3 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 37 | 36 |
| Cefadroxil | 21 | 21 |
| Cephalexin | 21 | 21 |
| Azithromycin | 19 | 19 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | 16 |
| Doxycycline Monohydrate | 16 | 16 |
| Prednisone | 16 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-27
- Last updated
- 2023-09-13
- Certified
- 2023-09-13
Frequently asked questions
- What is Alex Linker's NPI number?
- Alex Linker's National Provider Identifier (NPI) is 1881987519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alex Linker's specialty?
- Alex Linker is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alex Linker located?
- Alex Linker's practice location on file with NPPES is 701 E El Camino Real, Mountain View, CA 94040-2833.
- What is Alex Linker's phone number?
- The practice phone number listed in the NPPES registry for Alex Linker is (408) 934-7800.
- Does Alex Linker accept Medicare?
- Alex Linker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alex Linker's NPI active?
- Yes — Alex Linker's NPI (1881987519) is active in the NPPES registry as of the last update on 2023-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.