Ethan Hollander, M.D.
NPI 1528003597 · Family Medicine Physician · San Ramon, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethan Hollander, M.D. is a Family Medicine Physician provider in San Ramon, CA (NPI 1528003597).
Provider details
- NPI number
- 1528003597
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A78030 (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
20 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
1,089 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 520 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 121 | $154 |
| Urinalysis, Manual Test81002 | 120 | $3 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 98 | $133 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 68 | $68 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 81 | 80 |
| Doxycycline Monohydrate | 62 | 61 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 60 | 60 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 57 | 57 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 45 | 45 |
| Azithromycin | 28 | 28 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2012-06-21
Frequently asked questions
- What is Ethan Hollander's NPI number?
- Ethan Hollander's National Provider Identifier (NPI) is 1528003597, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Hollander's specialty?
- Ethan Hollander is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ethan Hollander located?
- Ethan Hollander's practice location on file with NPPES is 2305 Camino Ramon, San Ramon, CA 94583-1396.
- What is Ethan Hollander's phone number?
- The practice phone number listed in the NPPES registry for Ethan Hollander is (925) 837-1886.
- Does Ethan Hollander accept Medicare?
- Ethan Hollander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethan Hollander's NPI active?
- Yes — Ethan Hollander's NPI (1528003597) is active in the NPPES registry as of the last update on 2012-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.