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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MONTEREY BAY ONCOLOGY A MEDICAL CORPORATION
NPI 1205007408
Internal Medicine - Hematology & Oncology in Monterey, CA

Active since March 14, 2008CLIA Certified · 2 labs
5 HARRIS CT BLDG T, SUITE 201, MONTEREY, CA 93940(831) 375-4105(831) 372-5722 Get Directions Write a Review

NPPES record last updated: September 17, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

About Monterey Bay Oncology A Medical Corporation NPPES

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

MONTEREY BAY ONCOLOGY A MEDICAL CORPORATION (NPI 1205007408), doing business as Pacific Cancer Care, is a healthcare organization registered as a hematology & oncology in Monterey, California and active in the NPI registry since March 2008. The organization holds 2 active CLIA laboratory certificates, maintains 3 additional practice locations, and lists Nicole Lynn Billingsley, Chief Executive Officer, as its authorized official.

NPPES Registry Identity

NPI1205007408
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameMONTEREY BAY ONCOLOGY A MEDICAL CORPORATION
Location Address5 HARRIS CT BLDG T, SUITE 201Monterey, CA 93940-5750
Mailing Address5 Harris Ct Bldg T, 2nd Floor Suite 201Monterey, CA 93940-5750 · (831) 375-4105 · Fax (831) 372-5722
Phone(831) 375-4105
Fax(831) 372-5722
Organization SubpartNo
Authorized OfficialNicole Lynn BillingsleyChief Executive Officer · (831) 375-4105
Enumeration DateMarch 14, 2008
Last NPPES UpdateSeptember 17, 2026
NPPES CertifiedSeptember 17, 2026
✔ NPI 1205007408 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
5 HARRIS CT BLDG T, Monterey, CA 93940
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Other Names 1

Doing Business AsPacific Cancer Care

Secondary Practice Locations 3

Location 18060 Santa Teresa Blvd # 1Gilroy, CA 95020-3867 · Phone (408) 665-3283 · Fax (408) 358-8438
Location 215400 National Ave Ste 100Los Gatos, CA 95032-2433 · Phone (408) 358-8400 · Fax (408) 358-2793
Location 315400 National Ave Ste 201Los Gatos, CA 95032-2433 · Phone (408) 358-8415 · Fax (408) 502-9740

Other Identifiers 5

OtherZZZ71527ZBlue Shield
Other5640924CA · Ncpdp
Other05D0590281CA · Clia
MedicaidGR0076250CA
Other05D0691381CA · Clia

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 2

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 Accreditation 05D2347862

Monterey Bay Oncology Dba Pacific Cancer Care · Los Gatos, CA
Active · expires Jul 26, 2028
CLIA Number05D2347862
Laboratory TypePhysician Office
Certificate Effective DateJuly 27, 2026
Certificate Expiration DateJuly 26, 2028
Laboratory DirectorJohn A. Hausdorff
Laboratory Phone(831) 375-4105
Laboratory LocationMonterey Bay Oncology Dba Pacific Cancer Care15400 National Ave Ste 201, Los Gatos, CA 95032
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Accreditation 05D0691381

Monterey Bay Oncology Dba Pacific Cancer Care · Monterey, CA
Active · expires Dec 22, 2027
CLIA Number05D0691381
Laboratory TypePhysician Office
Certificate Effective DateDecember 23, 2025
Certificate Expiration DateDecember 22, 2027
Laboratory DirectorJohn Hausdorff
Laboratory Phone(831) 375-4105
Laboratory LocationMonterey Bay Oncology Dba Pacific Cancer Care5 Harris Court Bldg T, Suite 201, Monterey, CA 93940
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANDREW MADRID
Physical Therapist
5 HARRIS CT BLDG T
MONTEREY, CA 93940
Monterey County (845) 521-8222
ASHLEY SANDRIDGE NP-C
Nurse Practitioner
5 HARRIS CT BLDG T, # 201
MONTEREY, CA 93940
Monterey County (831) 375-4105
DR. MICHAEL ZACH KOONTZ MD
Internal Medicine
5 HARRIS CT BLDG T, 201
MONTEREY, CA 93940
Monterey County (831) 375-4105
KENT BRANSFORD M.D.
Internal Medicine (Hematology & Oncology)
5 HARRIS CT BLDG T, 2ND FLOOR # 201
MONTEREY, CA 93940
Monterey County (831) 375-4105
DEBRA C BRANSON CRNP
Nurse Practitioner
5 HARRIS CT BLDG T
MONTEREY, CA 93940
Monterey County (831) 375-4105
MS. ROBERTA ANN SILVEIRA NP
Nurse Practitioner (Family)
5 HARRIS CT BLDG T
MONTEREY, CA 93940
Monterey County (831) 375-4102
EDMONDS & LEE HEALTHCARE PARTNERS BL INLOW, DPM
Non-Pharmacy Dispensing Site
5 HARRIS CT BLDG T, 103
MONTEREY, CA 93940
Monterey County (831) 375-8880
DR. JAY S EDMONDS JR. MD
Family Medicine
5 HARRIS CT BLDG T, SUITE 103
MONTEREY, CA 93940
Monterey County (831) 375-8880

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 Monterey Bay Oncology A Medical Corporation's NPI number?

The NPI number for Monterey Bay Oncology A Medical Corporation is 1205007408. It was assigned to this organization in the NPPES registry on March 14, 2008. The provider is doing business as Pacific Cancer Care.

Where is Monterey Bay Oncology A Medical Corporation located?

Monterey Bay Oncology A Medical Corporation is located at 5 Harris Ct Bldg T Suite 201, Monterey, CA 93940. The listed phone number is (831) 375-4105.

What is Monterey Bay Oncology A Medical Corporation's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Does Monterey Bay Oncology A Medical Corporation hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Monterey Bay Oncology A Medical Corporation was last updated on September 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.