Caroline Anne McFadden, M.D.
Allergy Physician · Somerville, MA
Caroline Anne McFadden, M.D. is an allergy physician with a practice address in Somerville, Massachusetts, and NPI 1437362993, issued on May 8, 2007. Check the license (Massachusetts 213251, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Caroline Anne McFadden
- Credential
- M.D.
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- 213251 MA
Self-reported in NPPES; status is on the state search - Practice location
- 40 Holland St, Somerville, MA 02144
- Phone
- (617) 629-6250
- Enumerated
- May 8, 2007
- Record last updated
- Feb 23, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 2144077 MA
- Medicare enrollment
- Enrolled (PECOS I20080521000374); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 37 in Massachusetts → Look up another NPI →
Also registered at 40 Holland St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Caroline Anne McFadden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 213251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average allergy physician in 2024
264 Medicare Part D claims for 60 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Xolair50 claims
- Azelastine Hcl47 claims
- Fluticasone Propionate39 claims
- Epinephrine15 claims
- Montelukast Sodium15 claims
- Azelastine-Fluticasone14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Brigham And Womens Physicians Organization IncBoston, MA
- Dana-Farber Cancer Institute, Inc.Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caroline Anne McFadden among 37 allergy physician records in Massachusetts
Caroline Anne McFadden, M.D. is one of 37 allergy physician records with a practice address in Massachusetts. 46% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 81% of them.
- NPI issued2007 · 81% of these records are older, 11% newer
- In a Medicare fileYes · 46% of these records are
- In the CMS Doctors and Clinicians fileYes · 35% of these records are
- Graduated1988 · median 1986 among the 13 with a school on file
- Record last updated2012 · 89% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in Massachusetts
There are 37 allergy physician records in Massachusetts.
All 37 in Massachusetts → Every provider in Somerville → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Joel Bleier, MDMedford, MA 021551912904624
- Zuhayr Hemady, M.D.Quincy, MA 021691275591257
- Sachin Baxi, M.D.Boston, MA 021151053375626
- Rodrigo Hoyos, M.D.Boston, MA 021151609228345
- Douglas McDonald, MD, PHDBoston, MA 021151558447482
- Alexandria Hairston, MDBoston, MA 021141114503174
- Margaret Vallen Mashikian, M.D.South Weymouth, MA 021901881751394
- Rock Ripple, M.D.Norwood, MA 020621063481166
Common questions
What is Caroline Anne McFadden, M.D.'s NPI number?
Caroline Anne McFadden, M.D.'s National Provider Identifier (NPI) is 1437362993, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Anne McFadden, M.D. located?
The NPPES record lists a practice address at 40 Holland St, Somerville, MA, 02144. Phone: (617) 629-6250. Providers update this record themselves, so call before visiting.
How can I verify Caroline Anne McFadden, M.D.'s license?
NPPES lists Massachusetts license number 213251, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Caroline Anne McFadden, M.D. prescribe under Medicare Part D?
In 2024, Caroline Anne McFadden, M.D. had 264 Medicare Part D claims for 60 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.