Doctor profile · Federal record
Dr. Carina Spencer, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Boston, MA
- NPI 1255642773
- Accepts Medicare
- 16 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Massachusetts General Hospital, 55 Fruit St.
Boston, MA 02114
(617) 726-2865
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- November 14, 2018
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #L-244054
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255642773. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
708
Distinct HCPCS
8
Medicare allowed
$66,452
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
36415 |
Insertion of needle into vein for collection of blood sample | 208 | 150 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 189 | 112 | $137 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 120 | 120 | $141 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 72 | 55 | $191 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 40 | 31 | $100 | |
G0008 |
Administration of influenza virus vaccine | 33 | 33 | $34 | |
90662 |
Influenza vaccine split virus, preservative free | 28 | 28 | $72 | |
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 18 | 16 | $58 |
In context: peer comparison
Among 547 peers in this city , average services per provider: 81. This provider delivers 8.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,208
Patients
440
Total drug cost
$24,992
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 266 | 92 | $5,455 |
| Levothyroxine Sodium | Generic | 145 | 47 | $2,434 |
| Omeprazole | Generic | 119 | 42 | $2,659 |
| Lisinopril | Generic | 116 | 49 | $1,699 |
| Metoprolol Succinate | Generic | 82 | 33 | $2,183 |
| Losartan Potassium | Generic | 80 | 23 | $1,458 |
| Rosuvastatin Calcium | Generic | 59 | 21 | $3,992 |
| Sertraline Hcl | Generic | 49 | 16 | $997 |
| Amlodipine Besylate | Generic | 43 | 23 | $354 |
| Lorazepam | Generic | 43 | 20 | $287 |
Hospital affiliations
Frequently asked questions
What is Dr. Carina Spencer's medical specialty?
Dr. Carina Spencer practices Internal Medicine Physician in Boston, MA.
Where does Dr. Carina Spencer practice?
Dr. Carina Spencer practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177262865.
What is Dr. Carina Spencer's NPI?
Dr. Carina Spencer's National Provider Identifier (NPI) is 1255642773, issued by NPPES.
Does Dr. Carina Spencer accept Medicare assignment?
Yes. Dr. Carina Spencer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carina Spencer commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.