Margaret Sagsveen, D.O.
Anesthesiology Physician · Bay Shore, NY
Margaret Sagsveen, D.O. is an anesthesiology physician with a practice address in Bay Shore, New York, and NPI 1073054375, issued on Mar 20, 2017. Check the license (New York 310231-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Margaret Sagsveen
- Credential
- D.O.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 310231-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 301 E Main St, Bay Shore, NY 11706
- Phone
- (631) 885-3885
- Enumerated
- Mar 20, 2017
- Record last updated
- Dec 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20220303001283); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 5,062 in New York → Look up another NPI →
Also registered at 301 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tracie Ackerman, ANP-C, AGACNPAdult Health Nurse Practitioner1154417848
- Tyler Acton, PACPhysician Assistant1528898707
- James Adams, RPA-CPhysician Assistant1811070105
- Abimbola AdebajoPrimary Care Nurse Practitioner1942684667
Verify Margaret Sagsveen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 310231-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Shore - Lij Anesthesiology, PCHuntington, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Sagsveen among 5,062 anesthesiology physician records in New York
Margaret Sagsveen, D.O. is one of 5,062 anesthesiology physician records with a practice address in New York. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 82% of them.
- NPI issued2017 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2017 · median 2006 among the 3,612 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 anesthesiology physician records list a practice address in Bay Shore
They are 31 of the 1,931 NPPES records with a practice address in Bay Shore, and 5,062 anesthesiology physician records in New York.
All 5,062 in New York → Every provider in Bay Shore → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Dennis Caruana, M.D.Bay Shore, NY 117061992735203
- Steven Chisolm, M.D.Bay Shore, NY 117061578599817
- Alfonso D'Acunto, M.D.Bay Shore, NY 117061922034263
- Roseline Jerome, M.D.Bay Shore, NY 117061609802115
- Josette Legaspi-Tamayo, M.D.Bay Shore, NY 117061053347690
- Douglas Merrihew, M.D.Bay Shore, NY 117061700816014
- Assem Mohamed, M.D.Bay Shore, NY 117061871538538
- Mitchell Oldshein, M.D.Bay Shore, NY 117061124063888
Common questions
What is Margaret Sagsveen, D.O.'s NPI number?
Margaret Sagsveen, D.O.'s National Provider Identifier (NPI) is 1073054375, issued on Mar 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Sagsveen, D.O. located?
The NPPES record lists a practice address at 301 E Main St, Bay Shore, NY, 11706. Phone: (631) 885-3885. Providers update this record themselves, so call before visiting.
How can I verify Margaret Sagsveen, D.O.'s license?
NPPES lists New York license number 310231-01, as entered by the provider. 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.
What is Margaret Sagsveen, D.O.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.