Steven Randall Koe, M.D.
Internal Medicine Physician · Newbury Park, CA
Steven Randall Koe, M.D. is an internal medicine physician with a practice address in Newbury Park, California, and NPI 1174517296, issued on Sep 2, 2005. Check the license (California A45900, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven Randall Koe
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A45900 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Newbury RD, Newbury Park, CA 91320
- Phone
- (805) 375-1611
- Enumerated
- Sep 2, 2005
- Record last updated
- Oct 24, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (805) 375-1622
- Medicaid ID
- OOA459000 CA
- Medicare enrollment
- Enrolled (PECOS I20050711000395); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1000 Newbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lila Abedinzadeh, DDSGeneral Practice Dentistry1235242231
- Yael Bar-Zion, D.D.S.Pediatric Dentistry1952496267
- Padmaja Manthena, DDSDentist1407864473
- Ramin Mehdian, M.D.Pulmonary Disease Physician1053457127
- Helena Mercy, PH.D.Psychologist1295761682
- Amy Shafer, LCSWClinical Social Worker1356411888
Verify Steven Randall Koe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A45900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
6,762 Medicare Part D claims for 466 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 192 claims were for opioids.
Most prescribed
- Atorvastatin Calcium579 claims
- Levothyroxine Sodium306 claims
- Lisinopril267 claims
- Alprazolam229 claims
- Metformin Hcl211 claims
- Amlodipine Besylate209 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.
10 internal medicine physician records list a practice address in Newbury Park
They are 10 of the 350 NPPES records with a practice address in Newbury Park, and 17,696 internal medicine physician records in California.
All 10 in Newbury Park → All 17,696 in California → Every provider in Newbury Park →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Steven Randall Koe, M.D.'s NPI number?
Steven Randall Koe, M.D.'s National Provider Identifier (NPI) is 1174517296, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Steven Randall Koe, M.D. located?
The NPPES record lists a practice address at 1000 Newbury RD, Newbury Park, CA, 91320. Phone: (805) 375-1611. Providers update this record themselves, so call before visiting.
How can I verify Steven Randall Koe, M.D.'s license?
NPPES lists California license number A45900, 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 Steven Randall Koe, M.D. prescribe under Medicare Part D?
In 2024, Steven Randall Koe, M.D. had 6,762 Medicare Part D claims for 466 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.