NPPES file of Aug 9, 2026

Joselyn Saenz Diaz, CGC

Genetic Counselor (M.S.) · Palo Alto, CA

Joselyn Saenz Diaz, CGC is a genetic counselor (m.s.) with a practice address in Palo Alto, California, and NPI 1285471789, issued on Jul 11, 2024. Check the license (California GC001761, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285471789
Name
Joselyn Saenz Diaz
Credential
CGC
Primary taxonomy
Genetic Counselor (M.S.) 170300000X
License number
GC001761 CA
Self-reported in NPPES; status is on the state search
Practice location
875 Blake Wilbur Dr, Palo Alto, CA 94304
Phone
(650) 498-6000
Enumerated
Jul 11, 2024
Record last updated
Jul 11, 2024
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 875 Blake Wilbur Dr

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

  1. John Paul Aboubechara, MD, PHDNeurology Physician1205461803
  2. Kathryn Achuck, MDStudent in an Organized Health Care Education/Training Program1811790330
  3. Linda AllworthOncology Pharmacist1538035969
  4. Christina Berg, PHARMDOncology Pharmacist1184559650
  5. Rachel BlairAmbulatory Care Registered Nurse1033071170
  6. Sean Bohen, M.D., PH.D.Medical Oncology Physician1194869685

Verify Joselyn Saenz Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license GC001761
    Check 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
Find 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.

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Genetic Counselor (M.S.) providers in California

There are 942 genetic counselor (m.s.) records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other genetic counselor (m.s.) records in California

  1. Hannah AaronLos Angeles, CA1346030293
  2. Liane Abrams, M.S.,C.G.C.Lafayette, CA1811936644
  3. Christa Adusei, MS, CGCSouth San Francisco, CA1699112375
  4. Faria Ahmed, MSSacramento, CA1235753658
  5. Karen Ahn, M.S.Oakland, CA1396723532
  6. Cory Airheart, M.S., C.G.C.Fresno, CA1912971110
  7. Aida AkopyanBurbank, CA1801448402
  8. Rachel Alfred IrudayarajLos Angeles, CA1174332845
  9. Shari Alpern, M.S., C.G.C.Long Beach, CA1427070994
  10. Monica Alvarado, MS, CGCPasadena, CA1538221296

Common questions

What is Joselyn Saenz Diaz, CGC's NPI number?

Joselyn Saenz Diaz, CGC's National Provider Identifier (NPI) is 1285471789, issued on Jul 11, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Joselyn Saenz Diaz, CGC located?

The NPPES record lists a practice address at 875 Blake Wilbur Dr, Palo Alto, CA, 94304. Phone: (650) 498-6000. Providers update this record themselves, so call before visiting.

How can I verify Joselyn Saenz Diaz, CGC's license?

NPPES lists California license number GC001761, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.