Alexander David Newton, DO
Internal Medicine Physician · Berkeley, CA
Alexander David Newton, DO is an internal medicine physician with a practice address in Berkeley, California, and NPI 1912402322, issued on Mar 27, 2018. Check the license (California 20A19147, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander David Newton
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A19147 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2450 Ashby Ave Ste 5505, Berkeley, CA 94705
- Phone
- (510) 204-1983
- Enumerated
- Mar 27, 2018
- Record last updated
- Feb 23, 2022
- Fax
- (510) 649-8287
- Medicare enrollment
- Enrolled (PECOS I20220303001912); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2450 Ashby Ave Ste 5505
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Trissa Baden, MDHospitalist Physician1801898283
Verify Alexander David Newton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A19147Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
21 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationBerkeley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander David Newton among 17,696 internal medicine physician records in California
Alexander David Newton, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
83 internal medicine physician records list a practice address in Berkeley
They are 83 of the 4,898 NPPES records with a practice address in Berkeley, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Berkeley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Denise Davis, M.D.Berkeley, CA 947051851311245
- Deborah Demott, M.D.Berkeley, CA 947051124040084
- Kathryn Drinkard, MDBerkeley, CA 947051487740437
- Nicola Hanchock, M.D.Berkeley, CA 947051518074830
- Jonathan Hollander, MDBerkeley, CA 947051457463440
- Carolyn Klebanoff, MDBerkeley, CA 947051093892846
- Elizabeth Mahler, M.D.Berkeley, CA 947051972611192
- David Morris, MDBerkeley, CA 947051942283015
Common questions
What is Alexander David Newton, DO's NPI number?
Alexander David Newton, DO's National Provider Identifier (NPI) is 1912402322, issued on Mar 27, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alexander David Newton, DO located?
The NPPES record lists a practice address at 2450 Ashby Ave Ste 5505, Berkeley, CA, 94705. Phone: (510) 204-1983. Providers update this record themselves, so call before visiting.
How can I verify Alexander David Newton, DO's license?
NPPES lists California license number 20A19147, 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.
How much does Alexander David Newton, DO prescribe under Medicare Part D?
In 2024, Alexander David Newton, DO had 21 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.