Gilbert Andersen, M.D.
Internal Medicine Physician · Lompoc, CA
Gilbert Andersen, M.D. is an internal medicine physician with a practice address in Lompoc, California, and NPI 1821091836, issued on May 23, 2005. Check the license (California A29916, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gilbert Andersen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A29916 CA
Self-reported in NPPES; status is on the state search - Practice location
- 136 N 3RD St, Lompoc, CA 93436
- Phone
- (805) 736-1253
- Enumerated
- May 23, 2005
- Entity
- Type 1 · individual
Also registered at 136 N 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rollin Bailey, M.D.Internal Medicine Physician1689662447
- Ann Bockius, M.F.T.Marriage & Family Therapist1629086756
- Laurie Colson-Young, M.A.Marriage & Family Therapist1083752679
- David Crouch, M.F.T.Marriage & Family Therapist1730197864
- Peter Davis, MDSurgery Physician1851404743
- Michael Dixon, LCSWClinical Social Worker1154768695
Verify Gilbert Andersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A29916Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
47% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,476 Medicare Part D claims for 58 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 19 claims were for opioids.
Most prescribed
- Levothyroxine Sodium140 claims
- Amlodipine Besylate76 claims
- Lisinopril75 claims
- Atorvastatin Calcium72 claims
- Simvastatin61 claims
- Furosemide60 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.
One hospital or facility affiliation
- Lompoc Valley Medical CenterLompoc, CA · Acute Care Hospitals1 of 5 stars
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
13 internal medicine physician records list a Lompoc practice address
They are 13 of the 795 NPPES records with a Lompoc practice address, and 20,403 internal medicine physician records in California.
All 13 in Lompoc → All 20,403 in California → Every provider in Lompoc →
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 Gilbert Andersen, M.D.'s NPI number?
Gilbert Andersen, M.D.'s National Provider Identifier (NPI) is 1821091836, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gilbert Andersen, M.D. located?
The NPPES record lists a practice address at 136 N 3RD St, Lompoc, CA, 93436. Phone: (805) 736-1253. Providers update this record themselves, so call before visiting.
How can I verify Gilbert Andersen, M.D.'s license?
NPPES lists California license number A29916, 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 Gilbert Andersen, M.D. prescribe under Medicare Part D?
In 2024, Gilbert Andersen, M.D. had 1,476 Medicare Part D claims for 58 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.