Ethan Aolphus Nicholls, M.D.
Anesthesiology Physician · Fremont, CA
Ethan Aolphus Nicholls, M.D. is an anesthesiology physician with a practice address in Fremont, California, and NPI 1801805106, issued on Aug 5, 2006. Check the license (California G67915, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ethan Aolphus Nicholls
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G67915 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3200 Kearney St, Fremont, CA 94538
- Phone
- (510) 490-1222
- Enumerated
- Aug 5, 2006
- Record last updated
- May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 00G679150 CA
- Medicare enrollment
- Enrolled (PECOS I20050516000956); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 3200 Kearney St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessica Aldaz, FNPFamily Nurse Practitioner1740467174
- Neha AnandFamily Medicine Physician1477810836
- Lauren Auerbach, MDEmergency Medicine Physician1033678990
- Ritika Aulakh, D.OFamily Medicine Physician1346335072
- Rupal Badani, M.D.Pediatrics Physician1598857765
Verify Ethan Aolphus Nicholls in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67915Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sutter Bay Medical FoundationFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ethan Aolphus Nicholls among 7,571 anesthesiology physician records in California
Ethan Aolphus Nicholls, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1988 · median 2006 among the 4,868 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Fremont → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Joseph Callahan, M.D.Fremont, CA 945381992714240
- Franklin Chow, MDFremont, CA 945381427086289
- Paul Goehner, M.D.Fremont, CA 945381710996277
- Raghu KatragaddaFremont, CA 945381851391833
- Edwin Lee, M.D.Fremont, CA 945381710996160
- David Lewis, M.D.Fremont, CA 945381528077856
- Ann Mallat, MDFremont, CA 945381295767549
- Nasrin Naimi, M.D.Fremont, CA 945381922054311
Common questions
What is Ethan Aolphus Nicholls, M.D.'s NPI number?
Ethan Aolphus Nicholls, M.D.'s National Provider Identifier (NPI) is 1801805106, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ethan Aolphus Nicholls, M.D. located?
The NPPES record lists a practice address at 3200 Kearney St, Fremont, CA, 94538. Phone: (510) 490-1222. Providers update this record themselves, so call before visiting.
How can I verify Ethan Aolphus Nicholls, M.D.'s license?
NPPES lists California license number G67915, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.