Michael Lager, M.D.
Cardiovascular Disease Physician · Ventura, CA
Michael Lager, M.D. is a cardiovascular disease physician with a practice address in Ventura, California, and NPI 1376571745, issued on Jun 28, 2006. Check the license (California G28551, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Lager
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G28551 CA
Self-reported in NPPES; status is on the state search - Practice location
- 888 S Hill RD, Ventura, CA 93003
- Phone
- (805) 477-6464
- Enumerated
- Jun 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (805) 477-6498
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 888 S Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Adams, M.D.Family Medicine Physician1811925225
- Erin Anderson, P.T.Physical Therapist1811916299
- Nathania BarriosPharmacist1346827763
- Charles Brenner, M.D.Orthopaedic Surgery Physician1548299035
- Eric Chun, M.D.Family Medicine Physician1699702381
- Megan Chynoweth, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1689980260
Verify Michael Lager in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G28551Check 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 cardiovascular disease physician in 2024
17 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Michael Lager among 2,574 cardiovascular disease physician records in California
Michael Lager, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2007 · 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 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Ventura → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Jeffrey Brackett, MDVentura, CA 930031013919133
- Andrew Lee, M.D.Ventura, CA 930031427067669
- Craig Mansour, MDVentura, CA 930031063516235
- Nolan Mayer, MDVentura, CA 930031457364655
- Cory Nitzel, M.D.Ventura, CA 930031003017666
- Kristoff Olson, MD, MPHVentura, CA 930031891085148
- John Pang, M.D.Ventura, CA 930031982862322
- Alon Steinberg, MDVentura, CA 930031740282862
Common questions
What is Michael Lager, M.D.'s NPI number?
Michael Lager, M.D.'s National Provider Identifier (NPI) is 1376571745, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Lager, M.D. located?
The NPPES record lists a practice address at 888 S Hill RD, Ventura, CA, 93003. Phone: (805) 477-6464. Providers update this record themselves, so call before visiting.
How can I verify Michael Lager, M.D.'s license?
NPPES lists California license number G28551, 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 Michael Lager, M.D. prescribe under Medicare Part D?
In 2024, Michael Lager, M.D. had 17 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. 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.