Katherine Brubaker, MD
Obstetrics & Gynecology Physician · Milpitas, CA
Katherine Brubaker, MD is an obstetrics & gynecology physician with a practice address in Milpitas, California, and NPI 1376620211, issued on Oct 31, 2006. Check the license (California G40248, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Katherine Brubaker
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G40248 CA
Self-reported in NPPES; status is on the state search - Practice location
- 770 E Calaveras Blvd, Milpitas, CA 95035
- Phone
- (650) 945-2900
- Enumerated
- Oct 31, 2006
- Entity
- Type 1 · individual
Also registered at 770 E Calaveras Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Brubaker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G40248Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
8 obstetrics & gynecology physician records list a Milpitas practice address
They are 8 of the 878 NPPES records with a Milpitas practice address, and 5,004 obstetrics & gynecology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8 in Milpitas → All 5,004 in California → Every provider in Milpitas →
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Sina Abhari, MDNewport Beach, CA1073955290
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
- Ariel Abrahams, MDDowney, CA1376726174
Common questions
What is Katherine Brubaker, MD's NPI number?
Katherine Brubaker, MD's National Provider Identifier (NPI) is 1376620211, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Brubaker, MD located?
The NPPES record lists a practice address at 770 E Calaveras Blvd, Milpitas, CA, 95035. Phone: (650) 945-2900. Providers update this record themselves, so call before visiting.
How can I verify Katherine Brubaker, MD's license?
NPPES lists California license number G40248, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.