INTERNAL MEDICINE ASSOCIATES OF BERKELEY, A MEDICAL CORPORATION
NPI 1457457608
Internal Medicine in Berkeley, CA
About Internal Medicine Associates Of Berkeley, A Medical Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
INTERNAL MEDICINE ASSOCIATES OF BERKELEY, A MEDICAL CORPORATION (NPI 1457457608) is a healthcare organization registered as an internal medicine in Berkeley, California and active in the NPI registry since September 2006. The organization holds a CLIA Microscopy certificate valid through October 22, 2027 and lists Andrew Jay Ross, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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)
Internal Medicine Associates Of Berkeley, A Medical Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Internal Medicine Associates Of Berkeley, A Medical Corporation, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
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 for Provider-Performed Microscopy Procedures (PPMP) 05D1018487
Internal Medicine Associates Of Berkeley A Medical Group · Berkeley, 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 Internal Medicine Associates Of Berkeley, A Medical Corporation's NPI number?
The NPI number for Internal Medicine Associates Of Berkeley, A Medical Corporation is 1457457608. It was assigned to this organization in the NPPES registry on September 15, 2006.
Where is Internal Medicine Associates Of Berkeley, A Medical Corporation located?
Internal Medicine Associates Of Berkeley, A Medical Corporation is located at 2320 Woolsey St Suite 201, Berkeley, CA 94705. The listed phone number is (510) 843-8002.
What is Internal Medicine Associates Of Berkeley, A Medical Corporation's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Internal Medicine Associates Of Berkeley, A Medical Corporation enrolled in Medicare?
Yes. Internal Medicine Associates Of Berkeley, A Medical Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Internal Medicine Associates Of Berkeley, A Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Internal Medicine Associates Of Berkeley, A Medical Corporation, in Internal Medicine and Nurse Practitioner. 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. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Internal Medicine Associates Of Berkeley, A Medical Corporation hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D1018487) is associated with this NPI, valid through October 22, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Internal Medicine Associates Of Berkeley, A Medical Corporation was last updated on March 18, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Internal Medicine Associates Of Berkeley, A Medical Corporation · NPI 1457457608
Internal Medicine organization in Berkeley, California. Organization record, active in the CMS NPPES registry since September 15, 2006.
## Identity
- **NPI:** 1457457608 (Entity type: Organization)
- **Enumerated:** September 15, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Andrew Ross, PRESIDENT
## Practice location
- **Address:** 2320 WOOLSEY ST, SUITE 201, Berkeley, CA 94705-1973
- **Phone:** (510) 843-8002 · **Fax:** (510) 540-4808
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (2), Nurse Practitioner (1); 2 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 18, 2014
- **Other identifiers:** Medicare PIN ZZZ27095Z (CA); Other GR0103300 (CA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1457457608) · Data from the CMS NPPES public registry.