Joshua Ryan Barnhart, B.S, M.S
Genetic Counselor (M.S.) · Walnut Creek, CA
Joshua Ryan Barnhart, B.S, M.S is a genetic counselor (m.s.) with a practice address in Walnut Creek, California, and NPI 1639794076, issued on Jun 11, 2020. Check the license (California GC001243, 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.
- Name
- Joshua Ryan Barnhart
- Credential
- B.S, M.S
- Primary taxonomy
- Genetic Counselor (M.S.) 170300000X
- License number
- GC001243 CA
Self-reported in NPPES; status is on the state search - Practice location
- 133 LA Casa Via Ste 140, Walnut Creek, CA 94598
- Phone
- (925) 941-4092
- Enumerated
- Jun 11, 2020
- Record last updated
- Jun 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (925) 952-2758
- Entity
- Type 1 · individual
Also registered at 133 LA Casa Via Ste 140
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shellie Campos, NPFamily Nurse Practitioner1982871331
- Melinda Chang, MS, CGCGenetic Counselor (M.S.)1790466209
- Lincoln Johe, MSGenetic Counselor (M.S.)1154052827
- Audrey Wilke, NURSE PRACTITIONERNurse Practitioner1770465247
Verify Joshua Ryan Barnhart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license GC001243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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
- Hannah AaronLos Angeles, CA1346030293
- Liane Abrams, M.S.,C.G.C.Lafayette, CA1811936644
- Christa Adusei, MS, CGCSouth San Francisco, CA1699112375
- Faria Ahmed, MSSacramento, CA1235753658
- Karen Ahn, M.S.Oakland, CA1396723532
- Cory Airheart, M.S., C.G.C.Fresno, CA1912971110
- Aida AkopyanBurbank, CA1801448402
- Rachel Alfred IrudayarajLos Angeles, CA1174332845
- Shari Alpern, M.S., C.G.C.Long Beach, CA1427070994
- Monica Alvarado, MS, CGCPasadena, CA1538221296
Common questions
What is Joshua Ryan Barnhart, B.S, M.S's NPI number?
Joshua Ryan Barnhart, B.S, M.S's National Provider Identifier (NPI) is 1639794076, issued on Jun 11, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Ryan Barnhart, B.S, M.S located?
The NPPES record lists a practice address at 133 LA Casa Via Ste 140, Walnut Creek, CA, 94598. Phone: (925) 941-4092. Providers update this record themselves, so call before visiting.
How can I verify Joshua Ryan Barnhart, B.S, M.S's license?
NPPES lists California license number GC001243, 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.