Doctor profile · Federal record
Dr. Keenan Mahan, MD, MBA
Emergency Medicine Physician (CMS: Emergency Medicine) · Newton, MA
- NPI 1104387158
- Accepts Medicare
- 7 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2014 Washington St
Newton, MA 024621607
(617) 243-6193
Credentials & registration
- NPI registered
- March 2019 — 7 yrs on file
- Profile last updated
- November 4, 2024
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #290245
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104387158. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
399
Distinct HCPCS
5
Medicare allowed
$65,330
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 251 | 246 | $182 | |
99284 |
Emergency department visit with moderate level of medical decision making | 57 | 57 | $126 | |
99291 |
Critical care, first 30-74 minutes | 50 | 50 | $225 | |
93308 |
Ultrasound of heart, follow-up | 25 | 25 | $26 | |
76604 |
Ultrasound scan of chest | 16 | 16 | $29 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 88. This provider delivers 4.5× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Keenan Mahan's medical specialty?
Dr. Keenan Mahan practices Emergency Medicine Physician in Newton, MA.
Where does Dr. Keenan Mahan practice?
Dr. Keenan Mahan practices at 2014 Washington St, Newton, MA 024621607. Office phone: 6172436193.
What is Dr. Keenan Mahan's NPI?
Dr. Keenan Mahan's National Provider Identifier (NPI) is 1104387158, issued by NPPES.
Does Dr. Keenan Mahan accept Medicare assignment?
Yes. Dr. Keenan Mahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keenan Mahan 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.