Sidney Olefson
- Medicare services, 2024
- 549
- Medicare patients, 2024
- 331
- Part D claims, 2024
- 551
- Hospital affiliations
- 6
- Industry payments
- $45,413
- Practice address
- 211 Church Street, Saratoga Springs, NY 12866
- Practice phone
- Call (518) 587-3222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Sidney Olefson's professional email, personal email and mobile number
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Sidney Olefson is a gastroenterologist in Saratoga Springs, New York
Sidney Olefson practices at Saratoga Hospital in Saratoga Springs, New York, part of Albany Med Health System.
Sidney Olefson's NPI, 1457798506, was assigned on May 30, 2013. Sidney Olefson graduated from Albany Medical College of Union University in 2013. Sidney Olefson holds Massachusetts license 278384.
- NPI
- 1457798506NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597982330
- NPI enumeration date
- May 30, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (518) 587-3222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sidney Olefson practices at Saratoga Hospital in Saratoga Springs, New York
Sidney Olefson's primary practice is Saratoga Hospital, at 211 Church Street, Saratoga Springs, NY 12866 in Saratoga County. The practice phone is (518) 587-3222.
- Saratoga Hospital211 Church Street, Saratoga Springs, NY 12866 · Saratoga CountyPhone(518) 587-3222
Source: Dmand AI Affiliation Data
Sidney Olefson is affiliated with 8 sites of care and 5 medical groups
Sidney Olefson's primary practice is Saratoga Hospital in Saratoga Springs, New York, part of Albany Med Health System. Sidney Olefson is also affiliated with Albany Medical Center. The medical group on file is Prima Care. Dmand AI also links Sidney Olefson to 4 more hospitals, 4 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Sidney Olefson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sidney Olefson practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saratoga Hospital | Available with a free account |
| +7 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Albany Med Health System and 6.2K+ hospitals, with verified contacts in the same login.
Sidney Olefson is one of 1,583 gastroenterologists in New York
Gastroenterology is Sidney Olefson's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Sidney Olefson's licenses on file in 2 states: Massachusetts and Connecticut.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
- Internal medicine, Connecticut
Gastroenterologists near Sidney Olefson
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Sidney Olefson billed Medicare for 549 services in 2024
CMS data shows 549 Medicare services from Sidney Olefson across 17 procedure codes in 2024, for 331 Medicare patients. Medicare paid $69,787 for them.
Sidney Olefson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4342024: 27836%
- Office and hospital visits
- 2023: 1442024: 1338%
- Lab and pathology
- 2023: 462024: 112143%
- Other services
- 2023: 532024: 2651%
- Tests and treatments
- 2023: 152024: 0100%
Where Sidney Olefson's Medicare services took place, 2024
- In an office46585%
- In a facility8415%
Sidney Olefson compared with the New York median for gastroenterologists, 2024
- Sidney Olefson
- New York median
- Medicare services
- 549vs 42130% above
- Medicare patients
- 331vs 23640% above
- Part D claims
- 369vs 382Close to median
Medians across 1,551 gastroenterologists in New York with Dmand AI profiles that report each measure.
Sidney Olefson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Sidney Olefson and other gastroenterologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Sidney Olefson treated 331 Medicare patients in 2024, average age 70
CMS counts 331 Medicare patients who saw Sidney Olefson in 2024. The largest group is 65 to 74, with 165 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Sidney Olefson's median patient age at 56, with 54% women.
Sidney Olefson's Medicare patients by age, 2024
Sidney Olefson's Medicare patients by sex, 2024
- Women16951%
- Men16249%
Chronic conditions among Sidney Olefson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety45%
- Arthritis43%
- Diabetes34%
- Mood disorders33%
- Depression31%
- Asthma25%
Share of Medicare patients with each condition. A patient can have several.
Sidney Olefson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sidney Olefson wrote 551 Medicare Part D claims in 2024
In 2024, Sidney Olefson wrote 551 Medicare Part D claims for 161 patients. 76% of them were for generic drugs. CMS names the drug for 369 of them, across 11 drugs with 11 or more claims each, at $158,208 in total drug cost. In 2023, CMS named 334 claims across 10 drugs.
Sidney Olefson's Part D claims by kind of drug, 2024
- Generic419 claims76%
- Brand-name132 claims24%
Sidney Olefson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Sidney Olefson's Part D claims, 2024
- Antibiotics4%20 of 551 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3342024: 36910%
Drugs named by CMS: 11 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Sidney Olefson ranks in the 78th percentile for colonoscopy in Medicare
Sidney Olefson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 92 procedures of colonoscopy by Sidney Olefson, more than 78% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Sidney Olefson ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 75th percentile95 procedures
- Colonoscopy
- 78th percentile92 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Sidney Olefson received $45,413 in industry payments from 2016 to 2025
CMS Open Payments shows 136 general payments to Sidney Olefson from 19 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 94% of the total. CapsoVision, Inc. paid the most, $42,549.
General payments to Sidney Olefson by program year, 2016 to 2025
General payments to Sidney Olefson by kind, 2016 to 2025
- Consulting fees$42,54994%
- Food and beverage$2,8646%
Companies that paid Sidney Olefson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sidney Olefson graduated from Albany Medical College of Union University
Sidney Olefson graduated from Albany Medical College of Union University in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Sidney Olefson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Sidney Olefson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Sidney Olefson's NPI number?
Sidney Olefson's NPI number is 1457798506. It was assigned on May 30, 2013, and it is active in the NPI Registry.
What does Sidney Olefson specialize in?
Sidney Olefson is a gastroenterologist in Saratoga Springs, New York. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Sidney Olefson practice?
Sidney Olefson practices at 211 Church Street, Saratoga Springs, NY 12866. Sidney Olefson's primary practice is Saratoga Hospital in Saratoga Springs, New York, part of Albany Med Health System. Dmand AI also links Sidney Olefson to 4 hospitals, 4 medical groups and 2 group practices and clinics.
What is Sidney Olefson's office phone number?
The practice phone on file for Sidney Olefson is (518) 587-3222.
What is Sidney Olefson's medical license number?
Sidney Olefson holds Massachusetts license 278384, one of the licenses on file in 2 states.
Which states has Sidney Olefson been licensed in?
Dmand AI has state licenses on file for Sidney Olefson in Massachusetts and Connecticut.
Which hospitals is Sidney Olefson affiliated with?
Sidney Olefson practices at Saratoga Hospital in Saratoga Springs, New York. Sidney Olefson is also affiliated with Albany Medical Center. Dmand AI links Sidney Olefson to 4 more hospitals.
What medical group is Sidney Olefson part of?
Sidney Olefson is linked to Prima Care. Dmand AI links Sidney Olefson to 4 more medical groups.
Does Sidney Olefson accept Medicare?
Yes. CMS data shows Sidney Olefson billed Medicare for 549 services in 2024, and Sidney Olefson accepts Medicare assignment.
How many Medicare patients does Sidney Olefson see?
CMS counts 331 Medicare patients who saw Sidney Olefson in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Sidney Olefson bill to Medicare?
In 2024, Sidney Olefson's most billed Medicare services were surgery: digestive system (43239), surgery: digestive system (45385) and office visit, established patient (99213).
Where did Sidney Olefson go to medical school?
Sidney Olefson graduated from Albany Medical College of Union University in 2013.
What drugs does Sidney Olefson prescribe most?
In 2024 Medicare Part D data, Sidney Olefson's most prescribed drugs by claims were Omeprazole, Linzess and Pantoprazole Sodium.
Has Sidney Olefson received payments from drug or device companies?
CMS Open Payments shows $45,413 in general payments to Sidney Olefson from 19 companies from 2016 to 2025. The largest total came from CapsoVision, Inc.
How long has Sidney Olefson been practicing?
Sidney Olefson graduated from medical school in 2013, 13 years ago.
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