Doctor profile · Federal record
Dr. Karen Dasilva, M.D.
Internal Medicine Physician · Hematology (Internal Medicine) Physician · Chelmsford, MA
- NPI 1851364889
- 20 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
228 Billerica RD, Internal Medicine
Chelmsford, MA 018243604
(978) 250-6100
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- September 20, 2021
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #78527
- Medicaid
- MA #3192482
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851364889. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
17
Distinct HCPCS
1
Medicare allowed
$143
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
36415 |
Insertion of needle into vein for collection of blood sample | 17 | 17 | $8 |
In context: peer comparison
Among 13 peers in Chelmsford Internal Medicine Physician, average services per provider: 78. This provider delivers 0.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
530
Patients
263
Total drug cost
$40,771
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 62 | 26 | $1,055 |
| Lorazepam | Generic | 61 | 28 | $373 |
| Sertraline Hcl | Generic | 44 | 19 | $866 |
| Trazodone Hcl | Generic | 40 | 17 | $511 |
| Oxycodone Hcl | Generic | 39 | 24 | $773 |
| Lisinopril | Generic | 37 | 18 | $324 |
| Metformin Hcl | Generic | 32 | 21 | $443 |
| Omeprazole | Generic | 31 | 14 | $716 |
| Tramadol Hcl | Generic | 31 | 17 | $188 |
| Eliquis (Apixaban) | Brand | 30 | 14 | $33,162 |
Frequently asked questions
What is Dr. Karen Dasilva's medical specialty?
Dr. Karen Dasilva practices Internal Medicine Physician in Chelmsford, MA.
Where does Dr. Karen Dasilva practice?
Dr. Karen Dasilva practices at 228 Billerica RD, Chelmsford, MA 018243604. Office phone: 9782506100.
What is Dr. Karen Dasilva's NPI?
Dr. Karen Dasilva's National Provider Identifier (NPI) is 1851364889, issued by NPPES.
What procedures does Dr. Karen Dasilva commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.