Doctor profile · Federal record
Dr. Clifford Marks, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Boston, MA
- NPI 1265936066
- Accepts Medicare
- 8 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1 Deaconess RD
Boston, MA 021156007
(617) 754-2400
Credentials & registration
- NPI registered
- March 2018 — 8 yrs on file
- Profile last updated
- March 9, 2023
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #291962
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265936066. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,121
Distinct HCPCS
10
Medicare allowed
$126,020
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 337 | 266 | $9 | |
99285 |
Emergency department visit with high level of medical decision making | 327 | 326 | $183 | |
99291 |
Critical care, first 30-74 minutes | 100 | 100 | $224 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 71 | 70 | $141 | |
99284 |
Emergency department visit with moderate level of medical decision making | 59 | 55 | $126 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 48 | 48 | $184 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 20 | 20 | $100 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 18 | 18 | $196 | |
71046 |
X-ray of chest, 2 views | 17 | 17 | $28 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 17 | 17 | $126 |
In context: peer comparison
Among 183 peers in Boston Emergency Medicine Physician, average services per provider: 65. This provider delivers 17× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
41
Patients
41
Total drug cost
$263
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 18 | 18 | $163 |
| Prednisone | Generic | 12 | 12 | $26 |
| Doxycycline Hyclate | Generic | 11 | 11 | $75 |
Hospital affiliations
Frequently asked questions
What is Dr. Clifford Marks's medical specialty?
Dr. Clifford Marks practices Emergency Medicine Physician in Boston, MA.
Where does Dr. Clifford Marks practice?
Dr. Clifford Marks practices at 1 Deaconess RD, Boston, MA 021156007. Office phone: 6177542400.
What is Dr. Clifford Marks's NPI?
Dr. Clifford Marks's National Provider Identifier (NPI) is 1265936066, issued by NPPES.
Does Dr. Clifford Marks accept Medicare assignment?
Yes. Dr. Clifford Marks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clifford Marks commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.