Ethan Nicholls, M.D.
NPI 1801805106 · Anesthesiology Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethan Nicholls, M.D. is a Anesthesiology Physician provider in Fremont, CA (NPI 1801805106).
Provider details
- NPI number
- 1801805106
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G67915 (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
19 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
237 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) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 121 | $134 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 55 | $149 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 18 | $147 |
| Anesthesia for Other Procedure on Eye00140 | 17 | $212 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 15 | $190 |
| Anesthesia for Fragmenting, Manipulation And/Or Removal of Kidney Stone Including Use of an Endoscope00918 | 11 | $227 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-05
- Last updated
- 2020-05-29
- Certified
- 2020-05-29
Frequently asked questions
- What is Ethan Nicholls's NPI number?
- Ethan Nicholls's National Provider Identifier (NPI) is 1801805106, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Nicholls's specialty?
- Ethan Nicholls is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ethan Nicholls located?
- Ethan Nicholls's practice location on file with NPPES is 3200 Kearney St, Fremont, CA 94538-2299.
- What is Ethan Nicholls's phone number?
- The practice phone number listed in the NPPES registry for Ethan Nicholls is (510) 490-1222.
- Does Ethan Nicholls accept Medicare?
- Ethan Nicholls is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethan Nicholls's NPI active?
- Yes — Ethan Nicholls's NPI (1801805106) is active in the NPPES registry as of the last update on 2020-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.