Doctor profile · Federal record

Dr. Shelly Groenendyk, MD

Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Anesthesiology Physician · Port Jefferson, NY

  • NPI 1083060917
  • Accepts Medicare
  • MIPS 92.8 / 100 · 2023
  • 10 yrs in practice
  • Licensed in 3 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
75 N Country RD
Port Jefferson, NY 117772190
(516) 382-7399
Additional location
3601 the Vanderbilt Clinic
Nashville, TN 372320001
(615) 322-3000
Mailing address
25 Rocky Hill RD
Mount Sinai, NY 117661213

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
November 3, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207L00000X — NUCC code
State licenses (3)
New York #329018 · Utah #10516430-1205 · Tennessee #63603

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083060917. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
150
Distinct HCPCS
7
Medicare allowed
$15,465
HCPCS Description Services Patients Avg allowed
99205 New patient office or other outpatient visit, 60-74 minutes 49 49 $168
01996 Daily hospital management of continuous spinal drug administration 24 16 $54
99215 Established patient office or other outpatient visit, 40-54 minutes 19 19 $131
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 17 17 $71
00811 Anesthesia for other procedure on large bowel using an endoscope 17 17 $69
64488 Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance 12 12 $60
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 12 12 $30

In context: peer comparison

Among 1 peers in this city , average services per provider: 21. This provider delivers 7.1× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Shelly Groenendyk's medical specialty?
Dr. Shelly Groenendyk practices Anesthesiology Physician in Port Jefferson, NY.
Where does Dr. Shelly Groenendyk practice?
Dr. Shelly Groenendyk practices at 75 N Country RD, Port Jefferson, NY 117772190. Office phone: 5163827399.
What is Dr. Shelly Groenendyk's NPI?
Dr. Shelly Groenendyk's National Provider Identifier (NPI) is 1083060917, issued by NPPES.
Does Dr. Shelly Groenendyk accept Medicare assignment?
Yes. Dr. Shelly Groenendyk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shelly Groenendyk commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99205); Daily hospital management of continuous spinal drug administration (HCPCS 01996); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.