Mark E. Merriman, M.D.
Anesthesiology Physician · Thousand Oaks, CA
Mark E. Merriman, M.D. is an anesthesiology physician with a practice address in Thousand Oaks, California, and NPI 1104835487, issued on Aug 5, 2006. Check the license (California G71754, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark E. Merriman
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G71754 CA
Self-reported in NPPES; status is on the state search - Practice location
- 227 W Janss RD, Thousand Oaks, CA 91360
- Phone
- (805) 371-0455
- Enumerated
- Aug 5, 2006
- Record last updated
- Dec 14, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 00G717541 CA
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 227 W Janss RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Philip Barry, MDOrthopaedic Surgery Physician1255330775
- Daniel Benhamou, MDStudent in an Organized Health Care Education/Training Program1639970981
- Paul Block, M.D.Pulmonary Disease Physician1598767550
- Harry Cozen, M.D.Anesthesiology Physician1114998846
- Vishva Dev, M.D.Interventional Cardiology Physician1770513723
Verify Mark E. Merriman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G71754Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark E. Merriman among 7,571 anesthesiology physician records in California
Mark E. Merriman, 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 not. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileNo · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2010 · 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).
30 anesthesiology physician records list a practice address in Thousand Oaks
They are 30 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 7,571 anesthesiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,571 in California → Every provider in Thousand Oaks → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Steven Bansbach, M.D.Thousand Oaks, CA 913601194734384
- Harry Cozen, M.D.Thousand Oaks, CA 913601114998846
- Michael Goldberg, M.D.Thousand Oaks, CA 913601679591788
- Ward Jones, M.D.Thousand Oaks, CA 913601467463109
- Erna Kwong, M.D.Thousand Oaks, CA 913601033145388
- Liem Lechau, M.D.Thousand Oaks, CA 913601396756052
- James Lin, M.D.Thousand Oaks, CA 913601821009580
- Stephen Maloon, M.D.Thousand Oaks, CA 913601396765566
Common questions
What is Mark E. Merriman, M.D.'s NPI number?
Mark E. Merriman, M.D.'s National Provider Identifier (NPI) is 1104835487, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark E. Merriman, M.D. located?
The NPPES record lists a practice address at 227 W Janss RD, Thousand Oaks, CA, 91360. Phone: (805) 371-0455. Providers update this record themselves, so call before visiting.
How can I verify Mark E. Merriman, M.D.'s license?
NPPES lists California license number G71754, 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. 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.