Doctor profile · Federal record
Dr. Margaret Witek, CRNA
Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Registered Nurse · Boston, MA
- NPI 1659859031
- Accepts Medicare
- 8 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
800 Washington St
Boston, MA 021111552
(617) 636-5000
Credentials & registration
- NPI registered
- July 2018 — 8 yrs on file
- Profile last updated
- February 24, 2023
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 367500000X — NUCC code
- State licenses (2)
- North Carolina #7063 · Pennsylvania #RN622902
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659859031. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
135
Distinct HCPCS
4
Medicare allowed
$10,887
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 56 | 56 | $81 | |
00811 |
Anesthesia for other procedure on large bowel using an endoscope | 48 | 47 | $72 | |
00813 |
Anesthesia for procedure on small and large bowel using an endoscope | 20 | 20 | $87 | |
00732 |
Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope | 11 | 11 | $103 |
In context: peer comparison
Among 104 peers in Boston Certified Registered Nurse Anesthetist, average services per provider: 30. This provider delivers 4.5× the peer median.Frequently asked questions
What is Dr. Margaret Witek's medical specialty?
Dr. Margaret Witek practices Certified Registered Nurse Anesthetist in Boston, MA.
Where does Dr. Margaret Witek practice?
Dr. Margaret Witek practices at 800 Washington St, Boston, MA 021111552. Office phone: 6176365000.
What is Dr. Margaret Witek's NPI?
Dr. Margaret Witek's National Provider Identifier (NPI) is 1659859031, issued by NPPES.
Does Dr. Margaret Witek accept Medicare assignment?
Yes. Dr. Margaret Witek accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Witek commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for procedure on small and large bowel using an endoscope (HCPCS 00813). Source: CMS Medicare Physician & Other Practitioners file.