Doctor profile · Federal record
Dr. Kassem Safa, M.D
Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Emergency Medicine Physician · Boston, MA
- NPI 1336397231
- Accepts Medicare
- 20 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
55 Fruit St, Grb-1003K
Boston, MA 02114
(617) 726-2000
Credentials & registration
- NPI registered
- September 2008 — 18 yrs on file
- Profile last updated
- November 11, 2025
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Massachusetts #253145
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336397231. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
839
Distinct HCPCS
7
Medicare allowed
$112,895
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 352 | 140 | $152 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 249 | 89 | $126 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 74 | 65 | $184 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 68 | 38 | $84 | |
90935 |
Hemodialysis procedure with physician evaluation | 42 | 15 | $76 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 37 | 36 | $101 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 17 | 16 | $103 |
In context: peer comparison
Among 73 peers in Boston Nephrology Physician, average services per provider: 137. This provider delivers 6.1× the peer median.Open Payments
Industry payments received
All-time total
$2,748
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Invivyd INC | 1 | $2,625.00 | |
| Sanofi-Aventis U.S. LLC | 1 | $122.83 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,021
Patients
255
Total drug cost
$39,751
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 224 | 53 | $1,744 |
| Amlodipine Besylate | Generic | 101 | 29 | $831 |
| Losartan Potassium | Generic | 91 | 24 | $1,350 |
| Tacrolimus | Generic | 68 | 16 | $10,732 |
| Carvedilol | Generic | 67 | 15 | $1,146 |
| Tamsulosin Hcl | Generic | 60 | 16 | $1,231 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 58 | 17 | $401 |
| Furosemide | Generic | 57 | 19 | $558 |
| Pravastatin Sodium | Generic | 51 | 13 | $777 |
| Doxazosin Mesylate | Generic | 48 | 0 | $1,663 |
Hospital affiliations
Frequently asked questions
What is Dr. Kassem Safa's medical specialty?
Dr. Kassem Safa practices Nephrology Physician in Boston, MA.
Where does Dr. Kassem Safa practice?
Dr. Kassem Safa practices at 55 Fruit St, Boston, MA 02114. Office phone: 6177262000.
What is Dr. Kassem Safa's NPI?
Dr. Kassem Safa's National Provider Identifier (NPI) is 1336397231, issued by NPPES.
Does Dr. Kassem Safa accept Medicare assignment?
Yes. Dr. Kassem Safa accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kassem Safa commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.