Individual
GREGORIO J. GUILLEN
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Credential
M.D
Contact information
Practice address
400 STATE ST. SUITE 2, PERTH AMBOY, NJ 08861
(732) 442-6020
(732) 442-1995
Mailing address
PO BOX 1608, PERTH AMBOY, NJ 08862-1608
(732) 442-6020
(732) 442-1995
Taxonomy
Speciality
Code
Description
License number
State
207RG0300X
Geriatric Medicine (Internal Medicine) Physician
Primary
MA56159
NJ
Other
Other identifiers
Code
Description
Identifier
Issuer
State
05
—
6523706
—
NJ
Enumeration date
10/02/2006
Last updated
08/06/2013
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