Doctor profile · Federal record

Dr. Allan Giesen, MD DO

Psychiatry Physician (CMS: Psychiatry) · Boston, MA

  • NPI 1538263991
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
271 Huntington Ave
Boston, MA 02115
(617) 267-3700
fax (617) 437-8525

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
March 29, 2012
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
Massachusetts #222687

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538263991. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$49
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) 1 $26.19
Alkermes, INC. 1 $22.52

By nature of payment

Food and Beverage
$49

Frequently asked questions

Auto-generated from federal data
What is Dr. Allan Giesen's medical specialty?
Dr. Allan Giesen practices Psychiatry Physician in Boston, MA.
Where does Dr. Allan Giesen practice?
Dr. Allan Giesen practices at 271 Huntington Ave, Boston, MA 02115. Office phone: 6172673700.
What is Dr. Allan Giesen's NPI?
Dr. Allan Giesen's National Provider Identifier (NPI) is 1538263991, issued by NPPES.
Does Dr. Allan Giesen accept Medicare assignment?
Dr. Allan Giesen does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.