Susan Elizabeth Slater, M.D.
Internal Medicine Physician · Ventura, CA
Susan Elizabeth Slater, M.D. is an internal medicine physician with a practice address in Ventura, California, and NPI 1790041457, issued on Apr 6, 2012. Check the license (California A126920, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan Elizabeth Slater
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A126920 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2715 E Main St, Ventura, CA 93003
- Phone
- (805) 804-7589
- Enumerated
- Apr 6, 2012
- Record last updated
- May 1, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (866) 280-2649
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Susan Elizabeth Slater in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A126920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,539 Medicare Part D claims for 75 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium76 claims
- Amlodipine Besylate62 claims
- Losartan Potassium57 claims
- Levothyroxine Sodium48 claims
- Pantoprazole Sodium45 claims
- Pregabalin43 claims
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.
Susan Elizabeth Slater among 17,696 internal medicine physician records in California
Susan Elizabeth Slater, M.D. 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 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2018 · 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).
68 internal medicine physician records list a practice address in Ventura
They are 68 of the 4,435 NPPES records with a practice address in Ventura, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Ventura → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Deborah Carlson, M.D.Ventura, CA 930031942231121
- James Estes, M.D.Ventura, CA 930031336176098
- Doina Galiatzatos, M.D.Ventura, CA 930031548206089
- Scott Goodfriend, M.D.Ventura, CA 930031982636965
- Arthur Inoshita, MDVentura, CA 930031932105277
- Albert Kam, M.D.Ventura, CA 930031114953593
- Karen Lockwood, MDVentura, CA 930031558330399
- James Mitchell, MDVentura, CA 930031598705485
Common questions
What is Susan Elizabeth Slater, M.D.'s NPI number?
Susan Elizabeth Slater, M.D.'s National Provider Identifier (NPI) is 1790041457, issued on Apr 6, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Susan Elizabeth Slater, M.D. located?
The NPPES record lists a practice address at 2715 E Main St, Ventura, CA, 93003. Phone: (805) 804-7589. Providers update this record themselves, so call before visiting.
How can I verify Susan Elizabeth Slater, M.D.'s license?
NPPES lists California license number A126920, 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 Susan Elizabeth Slater, M.D. prescribe under Medicare Part D?
In 2024, Susan Elizabeth Slater, M.D. had 1,539 Medicare Part D claims for 75 beneficiaries; 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.