Doctor profile · Federal record
Dr. Fraser Mackay, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Critical Care Medicine (Internal Medicine) Physician · Burlington, MA
- NPI 1629330410
- Accepts Medicare
- MIPS 88.4 / 100 · 2023
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
Lahey Hospital & Medical Center 41 Mall RD
Burlington, MA 018050001
(781) 744-8100
fax (781) 744-5213 - Mailing address
-
Lahey Hospital & Medical Center, 41 Mall Road
Burlington, MA 018050001
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #270652
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629330410. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
562
Distinct HCPCS
8
Medicare allowed
$93,079
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 268 | 266 | $186 | |
99284 |
Emergency department visit with moderate level of medical decision making | 111 | 111 | $128 | |
99291 |
Critical care, first 30-74 minutes | 93 | 71 | $225 | |
93308 |
Ultrasound of heart, follow-up | 22 | 22 | $27 | |
99283 |
Emergency department visit with low level of medical decision making | 21 | 21 | $75 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 19 | 19 | $187 | |
99292 |
Critical care, each additional 30 minutes | 17 | 12 | $113 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 11 | 11 | $52 |
In context: peer comparison
Among 21 peers in this city , average services per provider: 99. This provider delivers 5.7× the peer median.Frequently asked questions
What is Dr. Fraser Mackay's medical specialty?
Dr. Fraser Mackay practices Emergency Medicine Physician in Burlington, MA.
Where does Dr. Fraser Mackay practice?
Dr. Fraser Mackay practices at Lahey Hospital & Medical Center 41 Mall RD, Burlington, MA 018050001. Office phone: 7817448100.
What is Dr. Fraser Mackay's NPI?
Dr. Fraser Mackay's National Provider Identifier (NPI) is 1629330410, issued by NPPES.
Does Dr. Fraser Mackay accept Medicare assignment?
Yes. Dr. Fraser Mackay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Fraser Mackay commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.