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Individual
DR. HOWARD A GRELLER
Active
Individual
DR. HOWARD A GRELLER
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Taxonomy
Speciality
Code
Description
License number
State
207P00000X
Emergency Medicine Physician
224207
NY
207P00000X
Emergency Medicine Physician
25MA11394200
NJ
207PT0002X
Medical Toxicology (Emergency Medicine) Physician
224207
NY
207PT0002X
Medical Toxicology (Emergency Medicine) Physician
Primary
25MA11394200
NJ
2083A0300X
Addiction Medicine (Preventive Medicine) Physician
25MA11394200
NJ
2083A0300X
Addiction Medicine (Preventive Medicine) Physician
61-20314
NY
Other
Enumeration date
10/10/2006
Last updated
07/16/2026
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