Sidney Olefson
Gastroenterology Physician · Burnt Hills, NY
Sidney Olefson is a gastroenterology physician with a practice address in Burnt Hills, New York, and NPI 1457798506, issued on May 30, 2013. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Sidney Olefson
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 278384 MA
56817 CT
Self-reported in NPPES; status is on the state search - Practice location
- 848 State Route 50, Burnt Hills, NY 12027
- Phone
- (518) 831-1500
- Enumerated
- May 30, 2013
- Record last updated
- Feb 3, 2025
- Fax
- (518) 377-1677
- Medicare enrollment
- Enrolled (PECOS I20190715002641); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2013
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 848 State Route 50
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leon Averbukh, DOGastroenterology Physician1801320502
- Lisle Eaton, MDAnatomic Pathology & Clinical Pathology Physician1750382131
- Matthew FisherPhysician Assistant1245901297
- Matthew JosephsonGastroenterology Physician1730616855
- Melanie Lake, PAPhysician Assistant1962618819
- Carly Miller, P.A.Physician Assistant1225683857
Verify Sidney Olefson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average gastroenterology physician in 2024
551 Medicare Part D claims for 161 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Omeprazole138 claims
- Linzess60 claims
- Pantoprazole Sodium56 claims
- Esomeprazole Magnesium20 claims
- Nadolol17 claims
- Spironolactone16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,921.97
40 payments; by number, the most common kind was food and beverage; the largest payer was CapsoVision, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Physicians OF Cape Cod HospitalHyannis, MA
- Prima Care, PCFall River, MA
- Saratoga Schenectady Gastroenterology Associates, PCBurnt Hills, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sidney Olefson among 1,797 gastroenterology physician records in New York
Sidney Olefson is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 80% of them.
- NPI issued2013 · 80% of these records are older, 18% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2013 · median 1999 among the 1,378 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 gastroenterology physician records list a practice address in Burnt Hills
They are 20 of the 100 NPPES records with a practice address in Burnt Hills, and 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Burnt Hills → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Mark Adsit, M.D.Burnt Hills, NY 120271750385001
- Natalya Belova, MDBurnt Hills, NY 120271538187406
- George Boyar, M.D.Burnt Hills, NY 120271497759740
- Shawn Chaudhary, M.D.Burnt Hills, NY 120271285808618
- John Defrancisco, M.D.Burnt Hills, NY 120271326040411
- David Goetz, M.D.Burnt Hills, NY 120271669566089
- William Gusten, M.D.Burnt Hills, NY 120271144347451
- Gerardus Jameson, M.D.Burnt Hills, NY 120271215931563
Common questions
What is Sidney Olefson's NPI number?
Sidney Olefson's National Provider Identifier (NPI) is 1457798506, issued on May 30, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Sidney Olefson located?
The NPPES record lists a practice address at 848 State Route 50, Burnt Hills, NY, 12027. Phone: (518) 831-1500. Providers update this record themselves, so call before visiting.
How can I verify Sidney Olefson's license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sidney Olefson prescribe under Medicare Part D?
In 2024, Sidney Olefson had 551 Medicare Part D claims for 161 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.