Individual
MR. JOHN FRANCIS O BRIEN
Active
Individual
MR. JOHN FRANCIS O BRIEN
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
Primary
37318
MA
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
002308
ONE HEALTH
MA
05
—
0164879
—
MA
01
—
037318
TUFTS
MA
01
—
0405050
UNITED
MA
01
—
06224
HARVARD PILGRIM
MA
01
—
0743953001
CIGNA
MA
01
—
4037840
AETNA
MA
01
—
P00091128
RAILROAD MEDICARE
—
Enumeration date
07/28/2006
Last updated
10/15/2020
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