Doctor profile · Federal record
Dr. Gregory Baker
Internal Medicine Physician (CMS: Cardiovascular Disease (Cardiology)) · Boston, MA
- NPI 1255726667
- Accepts Medicare
- MIPS 83.9 / 100 · 2023
- 11 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
801 Massachusetts Ave, Crosstown 2
Boston, MA 021182605
(617) 414-7399
fax (617) 414-4676 - Mailing address
-
720 Harrison Ave, Dob 503
Boston, MA 021182371
Credentials & registration
- NPI registered
- April 2015 — 11 yrs on file
- Profile last updated
- June 5, 2018
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #274252
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255726667. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
751
Distinct HCPCS
10
Medicare allowed
$90,796
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 149 | 103 | $77 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 141 | 130 | $14 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 140 | 140 | $191 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 82 | 76 | $127 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 70 | 65 | $126 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 58 | 58 | $163 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 22 | 22 | $12 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 21 | $172 | |
93228 |
Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | 14 | 14 | $25 | |
93229 |
Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | 14 | 14 | $842 |
In context: peer comparison
Among 547 peers in Boston Internal Medicine Physician, average services per provider: 81. This provider delivers 9.3× the peer median.Open Payments
Industry payments received
All-time total
$21
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bayer Healthcare Pharmaceuticals INC. | 1 | $20.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
70
Patients
15
Total drug cost
$22,745
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 21 | 15 | $368 |
| Eliquis (Apixaban) | Brand | 14 | 0 | $21,818 |
| Atorvastatin Calcium | Generic | 12 | 0 | $182 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 12 | 0 | $187 |
| Lisinopril | Generic | 11 | 0 | $190 |
Hospital affiliations
Frequently asked questions
What is Dr. Gregory Baker's medical specialty?
Dr. Gregory Baker practices Internal Medicine Physician in Boston, MA.
Where does Dr. Gregory Baker practice?
Dr. Gregory Baker practices at 801 Massachusetts Ave, Boston, MA 021182605. Office phone: 6174147399.
What is Dr. Gregory Baker's NPI?
Dr. Gregory Baker's National Provider Identifier (NPI) is 1255726667, issued by NPPES.
Does Dr. Gregory Baker accept Medicare assignment?
Yes. Dr. Gregory Baker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Baker commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306). Source: CMS Medicare Physician & Other Practitioners file.