Doctor profile · Federal record
Dr. Maryellen O'Connor, D.C.
Chiropractor (CMS: Chiropractic) · Waltham, MA
- NPI 1093804791
- Accepts Medicare
- 19 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
564 Main St
Waltham, MA 024525516
(781) 894-8880
fax (781) 894-1121
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- July 8, 2019
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- Massachusetts #3132
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093804791. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
426
Distinct HCPCS
2
Medicare allowed
$14,785
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 286 | 50 | $30 | |
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 140 | 23 | $44 |
In context: peer comparison
Among 3 peers in Waltham Chiropractor, average services per provider: 266. This provider delivers 1.6× the peer median.Frequently asked questions
What is Dr. Maryellen O'Connor's medical specialty?
Dr. Maryellen O'Connor practices Chiropractor in Waltham, MA.
Where does Dr. Maryellen O'Connor practice?
Dr. Maryellen O'Connor practices at 564 Main St, Waltham, MA 024525516. Office phone: 7818948880.
What is Dr. Maryellen O'Connor's NPI?
Dr. Maryellen O'Connor's National Provider Identifier (NPI) is 1093804791, issued by NPPES.
Does Dr. Maryellen O'Connor accept Medicare assignment?
Yes. Dr. Maryellen O'Connor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maryellen O'Connor commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940); Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.