DR. MICHAEL CRAIG PRESTON DDS
NPI 1194706523
Dentist in Castro Valley, CA
About Dr. Michael Craig Preston Dds NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL CRAIG PRESTON DDS (NPI 1194706523) is an individual dentist in Castro Valley, California, licensed in California (29425) and active in the NPI registry since November 2005. He has opted out of Medicare through May 11, 2027 and remains eligible to order and refer.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
Dr. Michael Craig Preston Dds has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 11, 2015 through May 11, 2027.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94546 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CASTRO VALLEY, CA 94546
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Preston's NPI number?
The NPI number for Michael Preston is 1194706523. It was assigned to this individual provider in the NPPES registry on November 11, 2005.
Where is Michael Preston located?
Michael Preston practices at 20600 Lake Chabot Rd Suite 103, Castro Valley, CA 94546. The listed phone number is (510) 581-4124.
What is Michael Preston's specialty?
The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.
Is Michael Preston enrolled in Medicare?
No. Michael Preston has opted out of Medicare through May 11, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.
When was this NPI record last updated?
The NPPES record for Michael Preston was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Michael Craig Preston, DDS · NPI 1194706523
Dentist provider in Castro Valley, California. Individual provider, active in the CMS NPPES registry since November 11, 2005.
## Identity
- **NPI:** 1194706523 (Entity type: Individual)
- **Enumerated:** November 11, 2005
- **Primary specialty:** Dentist · taxonomy 122300000X
- **State license:** 29425 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 20600 LAKE CHABOT RD, SUITE 103, Castro Valley, CA 94546-5432
- **Phone:** (510) 581-4124
## Medicare
- **Medicare:** Opted out of Medicare (opt-out affidavit on file, in effect through May 11, 2027); services are provided under private contract
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1194706523) · Data from the CMS NPPES public registry.