Doctor profile · Federal record

Dr. Wei Zhang, MD. PHD

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Boston, MA

  • NPI 1720473523
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
55 Fruit St
Boston, MA 021142696
(617) 726-5925
Mailing address
1402 S Grand Blvd, Fdt 14Th Floor
Saint Louis, MO 631041004

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
September 12, 2023
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Massachusetts #MCS009939A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1720473523. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
414
Distinct HCPCS
10
Medicare allowed
$40,013
HCPCS Description Services Patients Avg allowed
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 98 28 $33
99215 Established patient office or other outpatient visit, 40-54 minutes 58 37 $149
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 58 55 $6
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 49 22 $79
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 40 23 $126
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 30 30 $269
45380 Biopsy of large bowel using a flexible endoscope 29 29 $125
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 21 21 $113
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 20 20 $184
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 11 11 $104

In context: peer comparison

Among 78 peers in Boston Gastroenterology Physician, average services per provider: 56. This provider delivers 7.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$38
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Sumitomo Pharma America, INC. 1 $23.55
Cumberland Pharmaceuticals, INC. 1 $14.86

By nature of payment

Food and Beverage
$38

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
71
Patients
44
Total drug cost
$16,027
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 48 44 $799
Viread (Tenofovir Disoproxil Fumarate) Brand 12 0 $15,032
Spironolactone Generic 11 0 $196

Frequently asked questions

Auto-generated from federal data
What is Dr. Wei Zhang's medical specialty?
Dr. Wei Zhang practices Gastroenterology Physician in Boston, MA.
Where does Dr. Wei Zhang practice?
Dr. Wei Zhang practices at 55 Fruit St, Boston, MA 021142696. Office phone: 6177265925.
What is Dr. Wei Zhang's NPI?
Dr. Wei Zhang's National Provider Identifier (NPI) is 1720473523, issued by NPPES.
Does Dr. Wei Zhang accept Medicare assignment?
Yes. Dr. Wei Zhang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Wei Zhang commonly perform?
Top Medicare-reported procedures in 2023: Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212); Established patient office or other outpatient visit (HCPCS 99215); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500). Source: CMS Medicare Physician & Other Practitioners file.