Doctor profile · Federal record

Dr. Caroline Birks, MD

Internal Medicine Physician (CMS: Internal Medicine) · Boston, MA

  • NPI 1851381537
  • 27 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
15 Parkman St, Bulfinch Medical Group, Wang 535
Boston, MA 021143117
(617) 724-6610
fax (617) 724-6649
Mailing address
Po Box 9142
Charlestown, MA 021299142

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
February 11, 2014
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #213969
Medicaid
MA #0198960

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851381537. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
541
Distinct HCPCS
9
Medicare allowed
$52,057
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 173 154 $141
36415 Insertion of needle into vein for collection of blood sample 138 133 $8
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 97 97 $142
99213 Established patient office or other outpatient visit, 20-29 minutes 40 40 $100
99215 Established patient office or other outpatient visit, 40-54 minutes 29 24 $196
91312 Sarscov2 vac bvl 30mcg/0.3ml 19 18 $0
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 19 19 $16
0121A Adm sarscv2 bvl 30mcg/.3ml 1 14 14 $45
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 12 12 $180

In context: peer comparison

Among 547 peers in this city , average services per provider: 81. This provider delivers 6.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,577
Patients
536
Total drug cost
$98,928
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 248 88 $5,333
Rosuvastatin Calcium Generic 178 57 $9,323
Lisinopril Generic 176 62 $1,556
Losartan Potassium Generic 146 47 $2,350
Levothyroxine Sodium Generic 121 42 $1,737
Amlodipine Besylate Generic 117 46 $954
Omeprazole Generic 111 41 $2,176
Lorazepam Generic 75 32 $466
Metoprolol Succinate Generic 72 24 $1,733
Sertraline Hcl Generic 67 21 $1,064

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caroline Birks's medical specialty?
Dr. Caroline Birks practices Internal Medicine Physician in Boston, MA.
Where does Dr. Caroline Birks practice?
Dr. Caroline Birks practices at 15 Parkman St, Boston, MA 021143117. Office phone: 6177246610.
What is Dr. Caroline Birks's NPI?
Dr. Caroline Birks's National Provider Identifier (NPI) is 1851381537, issued by NPPES.
Does Dr. Caroline Birks accept Medicare assignment?
Dr. Caroline Birks does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Caroline Birks commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.