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Individual
JOSHUA GREENSTEIN
Active
Individual
JOSHUA GREENSTEIN
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
M.D.
Taxonomy
Speciality
Code
Description
License number
State
207RN0300X
Nephrology Physician
Primary
A68100
CA
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
CA205056
NO CA PTAN
CA
01
—
CB258825
ORANGE COUNTY PTAN
CA
01
—
G0998Z
SO CA PTAN
CA
Enumeration date
04/19/2006
Last updated
01/16/2026
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