Doctor profile · Federal record

Dr. Konstantin Peysin, D.O.

Gastroenterology Physician (CMS: Internal Medicine) · Brooklyn, NY

  • NPI 1649513144
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1517 Voorhies Ave, 1St Fl
Brooklyn, NY 11235
(718) 332-0600
fax (718) 332-3262

Credentials & registration

NPPES · NUCC
NPI registered
April 2013 — 13 yrs on file
Profile last updated
July 3, 2020
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
New York #284024
Medicaid
NY #04579728

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649513144. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
898
Distinct HCPCS
10
Medicare allowed
$127,822
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 290 167 $105
99212 Established patient office or other outpatient visit, 10-19 minutes 204 77 $66
96360 Infusion into a vein for hydration, 31-60 minutes 106 95 $39
45380 Biopsy of large bowel using a flexible endoscope 62 62 $423
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 58 57 $352
99204 New patient office or other outpatient visit, 45-59 minutes 56 56 $192
99203 New patient office or other outpatient visit, 30-44 minutes 48 48 $132
99214 Established patient office or other outpatient visit, 30-39 minutes 45 29 $148
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 15 15 $546
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 14 14 $89

In context: peer comparison

Among 44 peers in this city , average services per provider: 119. This provider delivers 7.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,457
Transactions
74
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 25 $327.65
Ardelyx, Inc. 10 $236.37
Salix Pharmaceuticals, a division of Bausch Health US, LLC 12 $196.66
QOL Medical, LLC 5 $122.34
Intra-Sana Laboratories 3 $119.22
PFIZER INC. 3 $73.80
Janssen Biotech, Inc. 3 $68.35
Takeda Pharmaceuticals U.S.A., Inc. 3 $63.48
ORPHALAN INC 2 $47.38
Madrigal Pharmaceuticals 2 $39.20
Phathom Pharmaceuticals, Inc. 2 $35.36
SHIELD THERAPEUTICS INC 1 $24.33
Lilly USA, LLC 1 $24.19
Celgene Corporation 1 $22.86
IRONWOOD PHARMACEUTICALS, INC 1 $21.30

By nature of payment

Food and Beverage
$1,457

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,841
Patients
741
Total drug cost
$3,667,105
Drug Type Claims Patients Total cost
Linzess (Linaclotide) Brand 886 127 $500,163
Zenpep (Lipase/Protease/Amylase) Brand 625 82 $1,695,966
Creon (Lipase/Protease/Amylase) Brand 414 54 $937,982
Dexilant (Dexlansoprazole) Brand 404 60 $135,803
Omeprazole Generic 306 105 $2,729
Mesalamine Generic 238 38 $55,478
Famotidine Generic 196 47 $2,101
Dexlansoprazole Dr (Dexlansoprazole) Brand 156 28 $40,696
Dicyclomine Hcl Generic 146 38 $1,497
Canasa (Mesalamine) Brand 93 14 $118,106

Frequently asked questions

Auto-generated from federal data
What is Dr. Konstantin Peysin's medical specialty?
Dr. Konstantin Peysin practices Gastroenterology Physician in Brooklyn, NY.
Where does Dr. Konstantin Peysin practice?
Dr. Konstantin Peysin practices at 1517 Voorhies Ave, 1St Fl, Brooklyn, NY 11235. Office phone: 7183320600.
What is Dr. Konstantin Peysin's NPI?
Dr. Konstantin Peysin's National Provider Identifier (NPI) is 1649513144, issued by NPPES.
Does Dr. Konstantin Peysin accept Medicare assignment?
Yes. Dr. Konstantin Peysin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Konstantin Peysin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99212); Infusion into a vein for hydration (HCPCS 96360). Source: CMS Medicare Physician & Other Practitioners file.