Doctor profile · Federal record
Dr. Bonnie Ewald, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Burlington, MA
- NPI 1346535440
- Accepts Medicare
- 15 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
Lahey Hospital and Medical Center, 41 Mall Road
Burlington, MA 018050001
(781) 744-8494
fax (781) 744-5276 - Mailing address
-
41 Mall Road, Lahey Hospital and Medical Center
Burlington, MA 01805
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- July 31, 2017
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Massachusetts #260933 · Massachusetts #247792
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346535440. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
475
Distinct HCPCS
10
Medicare allowed
$58,823
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 93 | 75 | $104 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 65 | 65 | $265 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 61 | 61 | $6 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 60 | 60 | $116 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 47 | 46 | $138 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 43 | 39 | $150 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 36 | 26 | $84 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 31 | 31 | $114 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 22 | 22 | $121 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $142 |
In context: peer comparison
Among 11 peers in Burlington Gastroenterology Physician, average services per provider: 43. This provider delivers 11× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
287
Patients
50
Total drug cost
$86,448
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 110 | 38 | $2,019 |
| Famotidine | Generic | 44 | 12 | $583 |
| Pantoprazole Sodium | Generic | 27 | 0 | $237 |
| Spironolactone | Generic | 21 | 0 | $248 |
| Ursodiol | Generic | 20 | 0 | $8,074 |
| Furosemide | Generic | 18 | 0 | $144 |
| Prochlorperazine Maleate | Generic | 16 | 0 | $484 |
| Vemlidy (Tenofovir Alafenamide) | Brand | 16 | 0 | $22,893 |
| Xifaxan (Rifaximin) | Brand | 15 | 0 | $51,766 |
Frequently asked questions
What is Dr. Bonnie Ewald's medical specialty?
Dr. Bonnie Ewald practices Gastroenterology Physician in Burlington, MA.
Where does Dr. Bonnie Ewald practice?
Dr. Bonnie Ewald practices at Lahey Hospital and Medical Center, Burlington, MA 018050001. Office phone: 7817448494.
What is Dr. Bonnie Ewald's NPI?
Dr. Bonnie Ewald's National Provider Identifier (NPI) is 1346535440, issued by NPPES.
Does Dr. Bonnie Ewald accept Medicare assignment?
Yes. Dr. Bonnie Ewald accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bonnie Ewald commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500). Source: CMS Medicare Physician & Other Practitioners file.