Robert William Gardner
Addiction Medicine (Family Medicine) Physician · Lucerne, CA
Robert William Gardner is an addiction medicine (family medicine) physician with a practice address in Lucerne, California, and NPI 1023183829, issued on Nov 21, 2006. Check the license (California G30366, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert William Gardner
- Primary taxonomy
- Addiction Medicine (Family Medicine) Physician 207QA0401X
- License number
- G30366 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6300 E. Hwy 20, Lucerne, CA 95458
- Phone
- (707) 274-9299
- Enumerated
- Nov 21, 2006
- Record last updated
- Nov 1, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (707) 274-9297
- Medicaid ID
- 00G303660 CA
- Entity
- Type 1 · individual
8 nearest addiction medicine (family medicine) physician records → All 124 in California → Look up another NPI →
Also registered at 6300 E. Hwy 20
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elliott BennettAddiction (Substance Use Disorder) Counselor1235311630
- Lynn Brookes, NPFamily Nurse Practitioner1881700599
- Lori Carter-Runyon, CASII, CSC, NCACI,Addiction (Substance Use Disorder) Counselor1194969113
- Maureen ConwayAddiction (Substance Use Disorder) Counselor1437360492
- Joseph Geare, P.A.Medical Physician Assistant1649243437
- Jennifer Klein, MSN FNP RNNurse Practitioner1720125495
Verify Robert William Gardner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G30366Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024
44 Medicare Part D claims, against an average of 664 among the 581 providers of this specialty who prescribed in Part D.
Most prescribed
- Bupropion Hcl Sr11 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.
Industry payments in 2024: $20.26
1 payment: food and beverage; the largest payer was Abbvie Inc. The 305 providers of this specialty with any payment received $1,151.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert William Gardner among 124 addiction medicine (family medicine) physician records in California
Robert William Gardner is one of 124 addiction medicine (family medicine) physician records with a practice address in California. 78% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 73% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2012 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 addiction medicine (family medicine) physician record lists a practice address in Lucerne
They are 1 of the 64 NPPES records with a practice address in Lucerne, and 124 addiction medicine (family medicine) physician records in California.
All 124 in California → Every provider in Lucerne → Addiction Medicine (Family Medicine) Physician nationwide →
The 8 addiction medicine (family medicine) physician records with the nearest ZIP codes
- Stephen Bradley, MDLakeport, CA 954531699746446
- Cara Eberhardt, MDUkiah, CA 954821174151450
- Parker Duncan Diaz, MD, MPH, FAAFPSanta Rosa, CA 954071033434923
- Elyse Eisenberg, M.D.Santa Rosa, CA 954051316966815
- Myles Ketchum, M.D., PH.D.Santa Rosa, CA 954031093249864
- Eva Smith, M.D., M.P.H.Hoopa, CA 955461982773099
- Susan Nylen, NFPManteca, CA 953361205823077
- Andrea Silva, MDCeres, CA 953071942792007
Common questions
What is Robert William Gardner's NPI number?
Robert William Gardner's National Provider Identifier (NPI) is 1023183829, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert William Gardner located?
The NPPES record lists a practice address at 6300 E. Hwy 20, Lucerne, CA, 95458. Phone: (707) 274-9299. Providers update this record themselves, so call before visiting.
How can I verify Robert William Gardner's license?
NPPES lists California license number G30366, 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 Robert William Gardner prescribe under Medicare Part D?
In 2024, Robert William Gardner had 44 Medicare Part D claims; the average among addiction medicine (family medicine) physician prescribers was 664. 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.