Registry data as of Aug 27, 2026

Mark Nixon, MD

Reproductive Endocrinology Physician · Santa Clara, CA

Mark Nixon, MD is a reproductive endocrinology physician with a practice address in Santa Clara, California, and NPI 1861579716, issued on Oct 31, 2006. Check the license on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1861579716
Name
Mark Nixon
Credential
MD
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
Practice location
2885 Kaiser Dr, Santa Clara, CA 95051
Phone
(408) 236-6400
Enumerated
Oct 31, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2885 Kaiser Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lisa Farah-Eways, MDReproductive Endocrinology Physician1871665604
  2. Stephen Fisk, MDAnesthesiology Physician1851478705
  3. Richard Kim, M.D.Physical Medicine & Rehabilitation Physician1609813476
  4. Sulochina Lulla, MDAllergy & Immunology Physician1821175753
  5. Bichphuong Nguyen, MDAllergy & Immunology Physician1962589820
  6. Todd Nguyen, DOPhysical Medicine & Rehabilitation Physician1821176363

Verify Mark Nixon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Reproductive Endocrinology Physician providers in California

There are 220 reproductive endocrinology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other reproductive endocrinology physician records in California

  1. Mary Abusief, M.D.East Palo Alto, CA1639206733
  2. Brian Acacio, M.D.Laguna Niguel, CA1952313140
  3. Geoffrey Adamson, M.D.Mountain View, CA1780781690
  4. Jennifer Agard, M.D.Greenbrae, CA1003044553
  5. Zain Al-Safi, M.D.Los Angeles, CA1578728317
  6. Robert Anderson, M.D.Newport Beach, CA1023126562
  7. Helen AnglinSan Diego, CA1952721243
  8. John ArpelsLarkspur, CA1437229333
  9. Ramchandra Rao Ayyagari, M.D.Bakersfield, CA1942230644
  10. Kelly Baek, MDLos Angeles, CA1144385212

Common questions

What is Mark Nixon, MD's NPI number?

Mark Nixon, MD's National Provider Identifier (NPI) is 1861579716, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Nixon, MD located?

The NPPES record lists a practice address at 2885 Kaiser Dr, Santa Clara, CA, 95051. Phone: (408) 236-6400. Providers update this record themselves, so call before visiting.

How can I verify Mark Nixon, MD's license?

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.