Doctor profile · Federal record

Dr. Inessa Oks, CRNA

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Westwood, MA

  • NPI 1386726719
  • Accepts Medicare
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
690 Canton St, Suite 325
Westwood, MA 020902321
(781) 407-7713
fax (781) 407-0998

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
November 1, 2007
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
367500000X — NUCC code
State license (1)
Massachusetts #254699

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386726719. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
125
Distinct HCPCS
6
Medicare allowed
$10,189
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 52 52 $70
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 17 17 $74
00320 Anesthesia for other procedure on neck area (1 year or older) 16 16 $92
00813 Anesthesia for procedure on small and large bowel using an endoscope 14 14 $84
00300 Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back 13 13 $146
00812 Anesthesia for exam of colon using an endoscope 13 13 $57

In context: peer comparison

Among 61 peers in this city , average services per provider: 44. This provider delivers 2.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Inessa Oks's medical specialty?
Dr. Inessa Oks practices Certified Registered Nurse Anesthetist in Westwood, MA.
Where does Dr. Inessa Oks practice?
Dr. Inessa Oks practices at 690 Canton St, Westwood, MA 020902321. Office phone: 7814077713.
What is Dr. Inessa Oks's NPI?
Dr. Inessa Oks's National Provider Identifier (NPI) is 1386726719, issued by NPPES.
Does Dr. Inessa Oks accept Medicare assignment?
Yes. Dr. Inessa Oks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Inessa Oks commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on neck area (1 year or older) (HCPCS 00320). Source: CMS Medicare Physician & Other Practitioners file.