Medical Doctors Group, Inc
NPI 1407237159 · Internal Medicine Physician · San Leandro, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Medical Doctors Group, Inc is a Internal Medicine Physician organization in San Leandro, CA (NPI 1407237159).
Provider details
- NPI number
- 1407237159
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ernest Bonner, Ceo(510) 847-1581
- License
- A30477 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 10850 Macarthur BlvdSuite 303Oakland, CA 94605-5266Phone: (510) 969-4166Fax: (510) 969-5530
Registry dates
- Enumerated
- 2015-06-17
- Last updated
- 2018-03-17
Frequently asked questions
- What is Medical Doctors Group, Inc's NPI number?
- Medical Doctors Group, Inc's National Provider Identifier (NPI) is 1407237159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Medical Doctors Group, Inc?
- Medical Doctors Group, Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Medical Doctors Group, Inc located?
- Medical Doctors Group, Inc's practice location on file with NPPES is 433 Estudillo Ave Ste 206, San Leandro, CA 94577-4915.
- What is Medical Doctors Group, Inc's phone number?
- The practice phone number listed in the NPPES registry for Medical Doctors Group, Inc is (510) 969-4166.
- Does Medical Doctors Group, Inc accept Medicare?
- Medical Doctors Group, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Medical Doctors Group, Inc?
- The authorized official listed on Medical Doctors Group, Inc's NPPES record is Ernest Bonner, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Medical Doctors Group, Inc's NPI active?
- Yes — Medical Doctors Group, Inc's NPI (1407237159) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.