Doctor profile · Federal record

Dr. Brian Choi, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Portsmouth, NH

  • NPI 1104264175
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
333 Borthwick Ave
Portsmouth, NH 038017128
(215) 442-5031
Additional location
450 Clarkson Ave, Box 1262
Brooklyn, NY 112032012
(718) 270-8867
Mailing address
44 Portland Ave Apt 12
Dover, NH 038203680

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
December 1, 2017
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New Hampshire #17810

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104264175. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
842
Distinct HCPCS
3
Medicare allowed
$146,146
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 698 640 $174
99291 Critical care, first 30-74 minutes 75 71 $213
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 69 69 $129

In context: peer comparison

Among 8 peers in this city , average services per provider: 122. This provider delivers 6.9× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Brian Choi's medical specialty?
Dr. Brian Choi practices Internal Medicine Physician in Portsmouth, NH.
Where does Dr. Brian Choi practice?
Dr. Brian Choi practices at 333 Borthwick Ave, Portsmouth, NH 038017128. Office phone: 2154425031.
What is Dr. Brian Choi's NPI?
Dr. Brian Choi's National Provider Identifier (NPI) is 1104264175, issued by NPPES.
Does Dr. Brian Choi accept Medicare assignment?
Yes. Dr. Brian Choi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brian Choi commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Critical care (HCPCS 99291); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.