Doctor profile · Federal record
Dr. Robert Master, MD
Internal Medicine Physician (CMS: Internal Medicine) · Cambridge, MA
- NPI 1518048131
- Accepts Medicare
- 58 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9A Forest St
Cambridge, MA 021401501
(617) 680-6892
fax (857) 678-4049
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 17, 2024
- Year of graduation
- 1968 — 58 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #35355
- Medicaid
- MA #0138401
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518048131. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
75
Distinct HCPCS
3
Medicare allowed
$12,127
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99344 |
Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes | 36 | 36 | $152 | |
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 20 | 15 | $133 | |
99345 |
Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes | 19 | 19 | $209 |
In context: peer comparison
Among 70 peers in Cambridge Internal Medicine Physician, average services per provider: 94. This provider delivers 0.8× the peer median.Frequently asked questions
What is Dr. Robert Master's medical specialty?
Dr. Robert Master practices Internal Medicine Physician in Cambridge, MA.
Where does Dr. Robert Master practice?
Dr. Robert Master practices at 9A Forest St, Cambridge, MA 021401501. Office phone: 6176806892.
What is Dr. Robert Master's NPI?
Dr. Robert Master's National Provider Identifier (NPI) is 1518048131, issued by NPPES.
Does Dr. Robert Master accept Medicare assignment?
Yes. Dr. Robert Master accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Master commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for new patient with moderate level of medical decision making (HCPCS 99344); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Residence visit for new patient with high level of medical decision making (HCPCS 99345). Source: CMS Medicare Physician & Other Practitioners file.