Doctor profile · Federal record

Dr. Sidney Olefson

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Burnt Hills, NY

  • NPI 1457798506
  • Accepts Medicare
  • 13 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
848 State Route 50
Burnt Hills, NY 120279511
(518) 831-1500
fax (518) 377-1677
Additional location
1 West Ave Ste 130
Saratoga Springs, NY 128666050
Additional location
1770 Route 9
Halfmoon, NY 120652495

Credentials & registration

NPPES · NUCC
NPI registered
May 2013 — 13 yrs on file
Profile last updated
February 3, 2025
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Massachusetts #278384 · Connecticut #56817

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457798506. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
692
Distinct HCPCS
10
Medicare allowed
$150,953
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 100 100 $459
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 65 59 $288
99214 Established patient office or other outpatient visit, 30-39 minutes 65 54 $131
45380 Biopsy of large bowel using a flexible endoscope 64 64 $236
99213 Established patient office or other outpatient visit, 20-29 minutes 63 57 $89
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 60 55 $92
46221 Removal of external hemorrhoids by rubber banding 48 24 $297
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 28 28 $239
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 28 27 $276
36415 Insertion of needle into vein for collection of blood sample 26 19 $8

In context: peer comparison

Among 12 peers in Burnt Hills Gastroenterology Physician, average services per provider: 440. This provider delivers 1.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,922
Transactions
40
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
CapsoVision, INC. 1 $1,300.00
Abbvie INC. 31 $422.17
Celgene Corporation 2 $67.72
Intercept Pharmaceuticals, INC. 2 $51.57
Pfizer INC. 2 $34.55
Genzyme Corporation 1 $23.55
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $22.41

By nature of payment

Consulting Fee
$1,300
Food and Beverage
$622

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
334
Patients
90
Total drug cost
$50,144
Drug Type Claims Patients Total cost
Omeprazole Generic 133 47 $2,917
Linzess (Linaclotide) Brand 56 27 $37,990
Pantoprazole Sodium Generic 45 16 $871
Famotidine Generic 19 0 $432
Sulfasalazine Generic 18 0 $419
Spironolactone Generic 14 0 $151
Sucralfate Generic 13 0 $2,913
Esomeprazole Magnesium Generic 12 0 $437
Nadolol Generic 12 0 $441
Nexium (Esomeprazole Magnesium) Brand 12 0 $3,571

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sidney Olefson's medical specialty?
Dr. Sidney Olefson practices Gastroenterology Physician in Burnt Hills, NY.
Where does Dr. Sidney Olefson practice?
Dr. Sidney Olefson practices at 848 State Route 50, Burnt Hills, NY 120279511. Office phone: 5188311500.
What is Dr. Sidney Olefson's NPI?
Dr. Sidney Olefson's National Provider Identifier (NPI) is 1457798506, issued by NPPES.
Does Dr. Sidney Olefson accept Medicare assignment?
Yes. Dr. Sidney Olefson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sidney Olefson commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.