Doctor profile · Federal record
Dr. Michael Bertos, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · N Chelmsford, MA
- NPI 1043245145
- Accepts Medicare
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
20 Research Pl, Suite 310
N Chelmsford, MA 018632454
(978) 459-2152
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- November 2, 2011
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #160611
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043245145. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,983
Distinct HCPCS
10
Medicare allowed
$262,605
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 680 | 401 | $140 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 446 | 361 | $196 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 244 | 157 | $81 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 219 | 137 | $116 | |
G0008 |
Administration of influenza virus vaccine | 86 | 86 | $31 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 79 | 79 | $100 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 64 | 64 | $76 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 36 | 25 | $108 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 31 | 28 | $166 | |
G0009 |
Administration of pneumococcal vaccine | 30 | 30 | $31 |
In context: peer comparison
Among 2 peers in N Chelmsford Internal Medicine Physician, average services per provider: 197. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$17
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Inspire Medical Systems, INC. | 1 | $16.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
13,633
Patients
2,586
Total drug cost
$583,836
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 1,905 | 412 | $33,230 |
| Levothyroxine Sodium | Generic | 1,207 | 230 | $15,994 |
| Furosemide | Generic | 1,176 | 215 | $7,611 |
| Amlodipine Besylate | Generic | 1,119 | 215 | $9,496 |
| Eliquis (Apixaban) | Brand | 913 | 112 | $361,914 |
| Lisinopril | Generic | 879 | 172 | $8,373 |
| Trazodone Hcl | Generic | 839 | 137 | $10,246 |
| Metoprolol Succinate | Generic | 775 | 156 | $14,052 |
| Pantoprazole Sodium | Generic | 759 | 161 | $18,618 |
| Mirtazapine | Generic | 732 | 130 | $16,301 |
Frequently asked questions
What is Dr. Michael Bertos's medical specialty?
Dr. Michael Bertos practices Internal Medicine Physician in N Chelmsford, MA.
Where does Dr. Michael Bertos practice?
Dr. Michael Bertos practices at 20 Research Pl, N Chelmsford, MA 018632454. Office phone: 9784592152.
What is Dr. Michael Bertos's NPI?
Dr. Michael Bertos's National Provider Identifier (NPI) is 1043245145, issued by NPPES.
Does Dr. Michael Bertos accept Medicare assignment?
Yes. Dr. Michael Bertos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Bertos commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Initial nursing facility care with high level of medical decision making (HCPCS 99306); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308). Source: CMS Medicare Physician & Other Practitioners file.