EAST BAY RHEUMATOLOGY MEDICAL GROUP, INC.
NPI 1891930673
Specialist in San Leandro, CA

Q: What is East Bay Rheumatology Medical Group, Inc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since December 09, 2008CLIA 05D1047069 · Waiver

13851 E 14TH ST STE 301, SAN LEANDRO, CA 94578(510) 357-1303(510) 357-5463 Get Directions Write a Review

NPPES record last updated: February 12, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About East Bay Rheumatology Medical Group, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

EAST BAY RHEUMATOLOGY MEDICAL GROUP, INC. (NPI 1891930673) is a healthcare organization registered as a specialist in San Leandro, California and active in the NPI registry since December 2008. The organization holds a CLIA Waiver certificate valid through October 24, 2027 and lists Clark Michael Neuwelt, Doctor, as its authorized official.

NPPES Registry Identity

NPI1891930673

Entity TypeOrganization

Primary Taxonomy174400000X

Legal Business NameEAST BAY RHEUMATOLOGY MEDICAL GROUP, INC.

Location Address13851 E 14TH ST STE 301San Leandro, CA 94578-2630

Mailing Address13851 E 14th St Ste 301San Leandro, CA 94578-2630 · (510) 357-1303 · Fax (510) 357-5463

Phone(510) 357-1303

Fax(510) 357-5463

Organization SubpartNo

Authorized OfficialClark Michael NeuweltDoctor · (510) 357-1303

Enumeration DateDecember 9, 2008

Last NPPES UpdateFebruary 12, 2014

✔ NPI 1891930673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · G38264

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

13851 E 14TH ST STE 301, San Leandro, CA 94578

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 05D1047069

East Bay Rheumatology Medical Group, Inc · San Leandro, CA

Active · expires Oct 24, 2027

CLIA Number05D1047069

Laboratory TypePhysician Office

Certificate Effective DateOctober 25, 2025

Certificate Expiration DateOctober 24, 2027

Laboratory DirectorC M. Neuwelt

Laboratory Phone(510) 357-1040

Laboratory LocationEast Bay Rheumatology Medical Group, Inc13851 E 14th St Ste 102, San Leandro, CA 94578

CLIA data matches this NPI record on: Name

This certificate is issued to a laboratory to perform only waived tests.

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 East Bay Rheumatology Medical Group, Inc.'s NPI number?

The NPI number for East Bay Rheumatology Medical Group, Inc. is 1891930673. It was assigned to this organization in the NPPES registry on December 9, 2008.

Where is East Bay Rheumatology Medical Group, Inc. located?

East Bay Rheumatology Medical Group, Inc. is located at 13851 E 14th St Ste 301, San Leandro, CA 94578. The listed phone number is (510) 357-1303.

What is East Bay Rheumatology Medical Group, Inc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Does East Bay Rheumatology Medical Group, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D1047069) is associated with this NPI, valid through October 24, 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 East Bay Rheumatology Medical Group, Inc. was last updated on February 12, 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.