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Edit this profileAt a glance
- Lahey Hospital and Medical Center, 41 Mall Road, Burlington, MA 01805
About Dr. O'connor
Ashling O'Connor, MD practices surgical oncology in Burlington, MA. Ashling is also listed as specializing in surgery of the hand and surgery. According to Medicare claims data, Ashling cared for 553 Medicare patients across 588 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1881851798.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (781) 744-8580
- Email not available
Practice Locations
LAHEY HOSPITAL AND MEDICAL CENTER 41 MALL ROAD
Burlington, MA 01805
Procedures Most Often Billed to Medicare
588 services · 553 patients · 12 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Partial removal of breast | Procedure | 19301 |
49 | More than most peers in Surgical Oncology |
| Biopsy or removal of deep lymph nodes of underarm | Procedure | 38525 |
29 | More often than most peers in Surgical Oncology |
| Imaging of lymph nodes during surgery | Procedure | 38900 |
26 | More often than most peers in Surgical Oncology |
| Partial removal of breast | Procedure | 19301 |
11 | More than most peers in Surgical Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
195 | More than most peers in Surgical Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
116 | More than most peers in Surgical Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
51 | More often than most peers in Surgical Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
33 | More often than most peers in Surgical Oncology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
30 | More often than most peers in Surgical Oncology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
18 | As often as other peers in Surgical Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2002 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 7 related providers in 1 group
Also performs Partial removal of breast 7
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. O'Connor?
Dr. O'Connor is a surgical oncology in Burlington, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. O'Connor's address?
Dr. O'Connor is listed at Lahey Hospital and Medical Center 41 Mall Road, Burlington, MA 01805. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. O'Connor?
The number on file is (781) 744-8580. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. O'Connor's NPI number?
Dr. O'Connor's National Provider Identifier is 1881851798. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. O'Connor train?
Dr. O'Connor attended Other, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Connor been practicing?
Dr. O'Connor has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. O'Connor perform?
According to Medicare billing data, Dr. O'Connor performs procedures including partial removal of breast, biopsy or removal of deep lymph nodes of underarm and imaging of lymph nodes during surgery, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. O'Connor confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Connor. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.