Doctor profile · Federal record

Dr. Paul Lesser, MD

Gastroenterology Physician · Internal Medicine Physician · Cambridge, MA

  • NPI 1801963806
  • MIPS 81.3 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1493 Cambridge St, Medical Specialties
Cambridge, MA 021391047
(617) 665-1552

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
January 31, 2012
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Massachusetts #34654
Medicaid
MA #0188581

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801963806. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
58
Distinct HCPCS
2
Medicare allowed
$5,730
HCPCS Description Services Patients Avg allowed
99443 Telephone medical discussion with physician, 21-30 minutes 44 35 $103
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 14 12 $84

In context: peer comparison

Among 6 peers in Cambridge Gastroenterology Physician, average services per provider: 43. This provider delivers 1.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
69
Patients
28
Total drug cost
$19,958
Drug Type Claims Patients Total cost
Omeprazole Generic 26 14 $444
Mesalamine Generic 17 0 $17,867
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 14 14 $313
Mesalamine ER (Mesalamine) Brand 12 0 $1,333

Frequently asked questions

Auto-generated from federal data
What is Dr. Paul Lesser's medical specialty?
Dr. Paul Lesser practices Gastroenterology Physician in Cambridge, MA.
Where does Dr. Paul Lesser practice?
Dr. Paul Lesser practices at 1493 Cambridge St, Cambridge, MA 021391047. Office phone: 6176651552.
What is Dr. Paul Lesser's NPI?
Dr. Paul Lesser's National Provider Identifier (NPI) is 1801963806, issued by NPPES.
What procedures does Dr. Paul Lesser commonly perform?
Top Medicare-reported procedures in 2023: Telephone medical discussion with physician (HCPCS 99443); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.