Shelly Stephens Groenendyk, MD
Anesthesiology Physician · Port Jefferson, NY
Shelly Stephens Groenendyk, MD is an anesthesiology physician with a practice address in Port Jefferson, New York, and NPI 1083060917, issued on May 10, 2016. Check the license (New York 329018, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Shelly Stephens Groenendyk
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 329018 NY
63603 TN
10516430-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 75 N Country RD, Port Jefferson, NY 11777
- Phone
- (516) 382-7399
- Enumerated
- May 10, 2016
- Record last updated
- Nov 3, 2024
- Medicare enrollment
- Enrolled (PECOS I20241217002834); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 5,062 in New York → Look up another NPI →
Also registered at 75 N Country RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Fareeha Ajmal, DOHospitalist Physician1285375675
- Sarmad Al Obaidi, MDStudent in an Organized Health Care Education/Training Program1780387662
- Shabab Ali, MDStudent in an Organized Health Care Education/Training Program1497694962
Verify Shelly Stephens Groenendyk 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 329018Check 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 MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Shore - Lij Anesthesiology, PCRiverhead, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shelly Stephens Groenendyk among 5,062 anesthesiology physician records in New York
Shelly Stephens Groenendyk, MD 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2016 · median 2006 among the 3,612 with a school on file
- Record last updated2024 · 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).
Anesthesiology Physician providers in New York
There are 5,062 anesthesiology physician records in New York.
All 5,062 in New York → Every provider in Port Jefferson → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- James Bell, MD/PHDPort Jefferson, NY 117771457528143
- Karina BraslavskayaPort Jefferson, NY 117771821593591
- Daniel Feldman, MDPort Jefferson, NY 117771174815591
- Michelle Garcia, MDPort Jefferson, NY 117771861953481
- Cassandra JonesPort Jefferson, NY 117771912562133
- Bisma MasroorPort Jefferson, NY 117771073074902
- Ahsan Waqas, M.DPort Jefferson, NY 117771952853640
- Mingxi Zhu, MDPort Jefferson, NY 117771881222552
Common questions
What is Shelly Stephens Groenendyk, MD's NPI number?
Shelly Stephens Groenendyk, MD's National Provider Identifier (NPI) is 1083060917, issued on May 10, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Shelly Stephens Groenendyk, MD located?
The NPPES record lists a practice address at 75 N Country RD, Port Jefferson, NY, 11777. Phone: (516) 382-7399. Providers update this record themselves, so call before visiting.
How can I verify Shelly Stephens Groenendyk, MD's license?
NPPES lists New York license number 329018, 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 Shelly Stephens Groenendyk, MD's MIPS final score?
The 2023 MIPS final score is 97.1 of 100. 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.