John Toth, D.O.
NPI 1548346034 · Family Medicine Physician · Concord, CA
Enrolled with Medicare as Practitioner - Undersea and Hyperbaric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Toth, D.O. is a Family Medicine Physician provider in Concord, CA (NPI 1548346034).
Provider details
- NPI number
- 1548346034
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A5692 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 28 |
| Progesterone, Micronizedbrand: Progesterone | 21 |
| Amlodipine Besylate | 20 |
| Anastrozole | 17 |
| Liothyronine Sodium | 17 |
| Pantoprazole Sodium | 14 |
| Thyroid,porkbrand: Armour Thyroid | 11 |
| Diazepam | 11 |
| Verapamil Hclbrand: Verapamil Er | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$113 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Toth's NPI number?
- John Toth's National Provider Identifier (NPI) is 1548346034, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Toth's specialty?
- John Toth is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Toth located?
- John Toth's practice location on file with NPPES is 2270 Bacon St, Concord, CA 94520-2022.
- What is John Toth's phone number?
- The practice phone number listed in the NPPES registry for John Toth is (925) 687-9447.
- Does John Toth accept Medicare?
- John Toth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Toth's NPI active?
- Yes — John Toth's NPI (1548346034) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.