Doctor profile · Federal record
Dr. Mark Elmer, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Cambridge, MA
- NPI 1245597137
- Accepts Medicare
- MIPS 81.3 / 100 · 2023
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1493 Cambridge St
Cambridge, MA 021391047
(617) 665-1435
Credentials & registration
- NPI registered
- April 2012 — 14 yrs on file
- Profile last updated
- October 3, 2016
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #267132
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245597137. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
245
Distinct HCPCS
3
Medicare allowed
$35,146
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 108 | 105 | $183 | |
99284 |
Emergency department visit with moderate level of medical decision making | 99 | 97 | $126 | |
99283 |
Emergency department visit with low level of medical decision making | 38 | 33 | $75 |
In context: peer comparison
Among 18 peers in Cambridge Emergency Medicine Physician, average services per provider: 67. This provider delivers 3.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
34
Patients
33
Total drug cost
$149
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 23 | 22 | $78 |
| Azithromycin | Generic | 11 | 11 | $71 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Elmer's medical specialty?
Dr. Mark Elmer practices Emergency Medicine Physician in Cambridge, MA.
Where does Dr. Mark Elmer practice?
Dr. Mark Elmer practices at 1493 Cambridge St, Cambridge, MA 021391047. Office phone: 6176651435.
What is Dr. Mark Elmer's NPI?
Dr. Mark Elmer's National Provider Identifier (NPI) is 1245597137, issued by NPPES.
Does Dr. Mark Elmer accept Medicare assignment?
Yes. Dr. Mark Elmer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Elmer 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); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.