Caroline Mcfadden, M.D.
NPI 1437362993 · Allergy Physician · Somerville, MA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Mcfadden, M.D. is a Allergy Physician provider in Somerville, MA (NPI 1437362993).
Provider details
- NPI number
- 1437362993
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 213251 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
455 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Test for Allergy Using Combination of Methods With Drug Or Biological95018 | 224 | $7 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 74 | $144 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 41 | $102 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 22 | $110 |
| Test for Allergy Using Ingested Items, Initial 2 Hours95076 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omalizumabbrand: Xolair | 50 | — |
| Azelastine Hcl | 47 | 14 |
| Fluticasone Propionate | 39 | 17 |
| Epinephrine | 15 | 13 |
| Montelukast Sodium | 15 | — |
| Azelastine/Fluticasonebrand: Azelastine-Fluticasone | 14 | — |
| Fluticasone Propion/Salmeterolbrand: Advair Hfa | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-08
- Last updated
- 2012-02-23
Frequently asked questions
- What is Caroline Mcfadden's NPI number?
- Caroline Mcfadden's National Provider Identifier (NPI) is 1437362993, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Mcfadden's specialty?
- Caroline Mcfadden is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Mcfadden located?
- Caroline Mcfadden's practice location on file with NPPES is 40 Holland St, Somerville, MA 02144-2705.
- What is Caroline Mcfadden's phone number?
- The practice phone number listed in the NPPES registry for Caroline Mcfadden is (617) 629-6250.
- Does Caroline Mcfadden accept Medicare?
- Caroline Mcfadden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Mcfadden's NPI active?
- Yes — Caroline Mcfadden's NPI (1437362993) is active in the NPPES registry as of the last update on 2012-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.