Doctor profile · Federal record

Dr. Caroline McFadden, M.D.

Allergy Physician (CMS: Allergy/Immunology) · Somerville, MA

  • NPI 1437362993
  • Accepts Medicare
  • 38 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
40 Holland St
Somerville, MA 021442705
(617) 629-6250
Mailing address
147 Milk St
Boston, MA 021094806

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
February 23, 2012
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207KA0200X — NUCC code
State license (1)
Massachusetts #213251
Medicaid
MA #2144077

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437362993. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
367
Distinct HCPCS
7
Medicare allowed
$27,088
HCPCS Description Services Patients Avg allowed
95018 Test for allergy using combination of methods with drug or biological 145 20 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 51 43 $77
99215 Established patient office or other outpatient visit, 40-54 minutes 51 19 $153
99203 New patient office or other outpatient visit, 30-44 minutes 46 46 $98
99204 New patient office or other outpatient visit, 45-59 minutes 42 42 $154
99214 Established patient office or other outpatient visit, 30-39 minutes 17 16 $125
95076 Test for allergy using ingested items, initial 2 hours 15 15 $79

In context: peer comparison

Among 1 peers in Somerville Allergy Physician, average services per provider: 52. This provider delivers 7.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
237
Patients
34
Total drug cost
$94,662
Drug Type Claims Patients Total cost
Azelastine Hcl Generic 46 18 $3,440
Fluticasone Propionate Generic 45 16 $852
Xolair (Omalizumab) Brand 26 0 $72,350
Montelukast Sodium Generic 25 0 $428
Azelastine-Fluticasone (Azelastine/Fluticasone) Brand 17 0 $2,171
Flovent Hfa (Fluticasone Propionate) Brand 16 0 $4,697
Hydroxyzine Hcl Generic 15 0 $239
Epinephrine Generic 13 0 $2,588
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 12 0 $387
Advair Hfa (Fluticasone Propion/Salmeterol) Brand 11 0 $7,479

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Caroline McFadden's medical specialty?
Dr. Caroline McFadden practices Allergy Physician in Somerville, MA.
Where does Dr. Caroline McFadden practice?
Dr. Caroline McFadden practices at 40 Holland St, Somerville, MA 021442705. Office phone: 6176296250.
What is Dr. Caroline McFadden's NPI?
Dr. Caroline McFadden's National Provider Identifier (NPI) is 1437362993, issued by NPPES.
Does Dr. Caroline McFadden accept Medicare assignment?
Yes. Dr. Caroline McFadden accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caroline McFadden commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using combination of methods with drug or biological (HCPCS 95018); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.