John Richard Toth, D.O.
Family Medicine Physician · Concord, CA
John Richard Toth, D.O. is a family medicine physician with a practice address in Concord, California, and NPI 1548346034, issued on Oct 27, 2006. Check the license (California 20A5692, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Richard Toth
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A5692 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2270 Bacon St, Concord, CA 94520
- Phone
- (925) 687-9447
- Enumerated
- Oct 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (925) 687-9483
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify John Richard Toth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A5692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
394 Medicare Part D claims for 49 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Gabapentin28 claims
- Progesterone21 claims
- Amlodipine Besylate20 claims
- Anastrozole17 claims
- Liothyronine Sodium17 claims
- Pantoprazole Sodium14 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: $112.50
1 payment: food and beverage; the largest payer was Smith+Nephew, Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
John Richard Toth among 17,133 family medicine physician records in California
John Richard Toth, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 family medicine physician records list a practice address in Concord
They are 38 of the 9,328 NPPES records with a practice address in Concord, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Concord → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Susan Adler-Bressler, M.D.Concord, CA 945201588615207
- Olawunmi Beckley, M.D.Concord, CA 945201497789499
- Teresa Brock, M.D.Concord, CA 945201619920444
- Wilbert Charles, MDConcord, CA 945201861487589
- Susanne Duesberg, M.D.Concord, CA 945201770509838
- Detlef Ehling, M.D.Concord, CA 945201154331155
- Thomas Greely, M.D.Concord, CA 945201851336820
- Brian Honbo, M.D.Concord, CA 945201578587721
Common questions
What is John Richard Toth, D.O.'s NPI number?
John Richard Toth, D.O.'s National Provider Identifier (NPI) is 1548346034, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Richard Toth, D.O. located?
The NPPES record lists a practice address at 2270 Bacon St, Concord, CA, 94520. Phone: (925) 687-9447. Providers update this record themselves, so call before visiting.
How can I verify John Richard Toth, D.O.'s license?
NPPES lists California license number 20A5692, 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 John Richard Toth, D.O. prescribe under Medicare Part D?
In 2024, John Richard Toth, D.O. had 394 Medicare Part D claims for 49 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.