THOMAS W HOPKINS MD A PROFESSIONAL CORPORATION
NPI 1982766374
Internal Medicine in Roseville, CA
About Thomas W Hopkins Md A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS W HOPKINS MD A PROFESSIONAL CORPORATION (NPI 1982766374) is a healthcare organization registered as an internal medicine in Roseville, California and active in the NPI registry since December 2006. The organization holds a CLIA Waiver certificate valid through April 25, 2028, maintains a secondary practice location in Roseville, and lists Thomas W Hopkins, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Thomas W Hopkins Md A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Thomas W Hopkins MD A Professional Corporation, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 5 within 10 miles. They are listed nearest first.
Clinicians, nearest first (6)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 05D2303556
Thomas W Hopkins MD · Lincoln, CAFrequently 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 Thomas W Hopkins MD A Professional Corporation's NPI number?
The NPI number for Thomas W Hopkins MD A Professional Corporation is 1982766374. It was assigned to this organization in the NPPES registry on December 14, 2006.
Where is Thomas W Hopkins MD A Professional Corporation located?
Thomas W Hopkins MD A Professional Corporation is located at 2235 Douglas Blvd Ste 510, Roseville, CA 95661. The listed phone number is (916) 446-4449.
What is Thomas W Hopkins MD A Professional Corporation's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Thomas W Hopkins MD A Professional Corporation enrolled in Medicare?
Yes. Thomas W Hopkins MD A Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Thomas W Hopkins MD A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 4 Medicare specialties reassign their Medicare billing to Thomas W Hopkins MD A Professional Corporation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (3), Family Practice (1) and Internal Medicine (1). Of these, 3 practice at this address and 5 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Thomas W Hopkins MD A Professional Corporation hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D2303556) is associated with this NPI, valid through April 25, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Thomas W Hopkins MD A Professional Corporation was last updated on November 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Thomas W Hopkins Md A Professional Corporation · NPI 1982766374
Internal Medicine organization in Roseville, California. Organization record, active in the CMS NPPES registry since December 14, 2006.
## Identity
- **NPI:** 1982766374 (Entity type: Organization)
- **Enumerated:** December 14, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Thomas Hopkins, OWNER
## Practice location
- **Address:** 2235 DOUGLAS BLVD STE 510, Roseville, CA 95661-4266
- **Phone:** (916) 446-4449 · **Fax:** (916) 446-9370
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (3), Family Practice (1), Internal Medicine (1); 3 practice at this address and 5 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 21, 2023
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1982766374) · Data from the CMS NPPES public registry.