Doctor profile · Federal record

Dr. Michelle Zack, CRNA, APRN

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Critical Care Medicine Registered Nurse · Norwalk, CT

  • NPI 1225449028
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 12 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
24 Stevens St
Norwalk, CT 068503852
(203) 852-2276
Additional location
778 Long Ridge RD
Stamford, CT 069021265
(203) 428-4643
Mailing address
27 High Ridge RD
Shelton, CT 064845008

Credentials & registration

NPPES · NUCC
NPI registered
May 2014 — 12 yrs on file
Profile last updated
February 6, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
367500000X — NUCC code
State licenses (2)
Connecticut #93350 · Connecticut #72128

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225449028. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
155
Distinct HCPCS
4
Medicare allowed
$17,914
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 80 79 $114
00812 Anesthesia for exam of colon using an endoscope 29 29 $93
00813 Anesthesia for procedure on small and large bowel using an endoscope 24 24 $149
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 22 22 $114

In context: peer comparison

Among 8 peers in Norwalk Certified Registered Nurse Anesthetist, average services per provider: 33. This provider delivers 4.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$391
Transactions
16
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Takeda Pharmaceuticals U.S.A., INC. 8 $203.92
Janssen Biotech, INC. 4 $83.69
Abbvie INC. 1 $29.89
Intercept Pharmaceuticals, INC. 1 $27.78
Celgene Corporation 1 $26.10
Lilly USA, LLC 1 $19.96

By nature of payment

Food and Beverage
$391

Frequently asked questions

Auto-generated from federal data
What is Dr. Michelle Zack's medical specialty?
Dr. Michelle Zack practices Certified Registered Nurse Anesthetist in Norwalk, CT.
Where does Dr. Michelle Zack practice?
Dr. Michelle Zack practices at 24 Stevens St, Norwalk, CT 068503852. Office phone: 2038522276.
What is Dr. Michelle Zack's NPI?
Dr. Michelle Zack's National Provider Identifier (NPI) is 1225449028, issued by NPPES.
Does Dr. Michelle Zack accept Medicare assignment?
Yes. Dr. Michelle Zack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michelle Zack commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for exam of colon using an endoscope (HCPCS 00812); Anesthesia for procedure on small and large bowel using an endoscope (HCPCS 00813). Source: CMS Medicare Physician & Other Practitioners file.