Garth B. Tanner, MD
Internal Medicine Physician · Modesto, CA
Garth B. Tanner, MD is an internal medicine physician with a practice address in Modesto, California, and NPI 1184612624, issued on Oct 10, 2005. Check the license (California A64407, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Garth B. Tanner
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A64407 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1429 College Ave, Modesto, CA 95350
- Phone
- (209) 521-7800
- Enumerated
- Oct 10, 2005
- Record last updated
- Jul 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (209) 521-5733
- Medicaid ID
- 00A644070 CA
- Medicare enrollment
- Enrolled (PECOS I20071204000366); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1429 College Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Garth B. Tanner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64407Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.1 times the Medicare Part D claims of the average internal medicine physician in 2024
16,153 Medicare Part D claims for 886 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 1,254 claims were for opioids.
Most prescribed
- Atorvastatin Calcium975 claims
- Hydrocodone-Acetaminophen704 claims
- Levothyroxine Sodium601 claims
- Lisinopril589 claims
- Amlodipine Besylate531 claims
- Alprazolam451 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: $1,917.35
103 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Garth B. Tanner among 17,696 internal medicine physician records in California
Garth B. Tanner, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1996 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
129 internal medicine physician records list a practice address in Modesto
They are 129 of the 9,262 NPPES records with a practice address in Modesto, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Modesto → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Tushar Modi, M.D.Modesto, CA 953501679551352
- Priti Modi, M.D., F.A.C.P.Modesto, CA 953501568440246
- Anita Prabhu, M.DModesto, CA 953501851312060
Common questions
What is Garth B. Tanner, MD's NPI number?
Garth B. Tanner, MD's National Provider Identifier (NPI) is 1184612624, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Garth B. Tanner, MD located?
The NPPES record lists a practice address at 1429 College Ave, Modesto, CA, 95350. Phone: (209) 521-7800. Providers update this record themselves, so call before visiting.
How can I verify Garth B. Tanner, MD's license?
NPPES lists California license number A64407, 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 Garth B. Tanner, MD prescribe under Medicare Part D?
In 2024, Garth B. Tanner, MD had 16,153 Medicare Part D claims for 886 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.