NPPES file of Aug 9, 2026

Carlos Fernandez-Del-Castillo, MD

Surgery Physician · Boston, MA

Carlos Fernandez-Del-Castillo, MD is a surgery physician with a practice address in Boston, Massachusetts, and NPI 1225029788, issued on Nov 3, 2005. Check the license (Massachusetts 78466, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225029788
Name
Carlos Fernandez-Del-Castillo
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
78466 MA
Self-reported in NPPES; status is on the state search
Practice location
15 Parkman St, Boston, MA 02114
Phone
(617) 726-5644
Enumerated
Nov 3, 2005
Record last updated
Dec 3, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(617) 724-3383
Medicaid ID
3081826 MA
Medicare enrollment
Enrolled (PECOS I20040722000161); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 15 Parkman St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kate AdelettiPhysical Therapist1134247059
  2. Haitham Alabsi, DONeurology Physician1538587803
  3. Jonathan Alpert, MD PHDPsychiatry Physician1508857863
  4. Anthony Amato, MDNeurology Physician1124009881
  5. Maura Ament, PT DPTPhysical Therapist1629194386
  6. Sara Anderson, DPTPhysical Therapist1073924254

Verify Carlos Fernandez-Del-Castillo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 78466
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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14% fewer Medicare Part D claims than the average surgery physician in 2024

127 Medicare Part D claims for 43 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 78% of claims.

  1. Carlos Fernandez-Del-Castillo127
  2. Specialty average147

Most prescribed

  1. Creon77 claims
  2. Zenpep16 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 one group practice

  1. Massachusetts General Physicians Organization IncRevere, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carlos Fernandez-Del-Castillo among 1,003 surgery physician records in Massachusetts

Carlos Fernandez-Del-Castillo, MD is one of 1,003 surgery physician records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1982 · median 2003 among the 503 with a school on file
  • Record last updated2012 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

443 surgery physician records list a practice address in Boston

They are 443 of the 41,865 NPPES records with a practice address in Boston, and 1,003 surgery physician records in Massachusetts.

The 8 surgery physician records with the nearest ZIP codes

  1. Hugh Auchincloss, MDBoston, MA 021141689655664
  2. David Berger, MDBoston, MA 021141710977327
  3. A Benedict Cosimi, MDBoston, MA 021141184614364
  4. Francis Delmonico, MDBoston, MA 021141518958446
  5. Charles Ferguson, MDBoston, MA 021141194716746
  6. Randall Gaz, MDBoston, MA 021141801886718
  7. Allan Goldstein, MDBoston, MA 021141124019740
  8. Kevin Hughes, MDBoston, MA 021141437140993

Common questions

What is Carlos Fernandez-Del-Castillo, MD's NPI number?

Carlos Fernandez-Del-Castillo, MD's National Provider Identifier (NPI) is 1225029788, issued on Nov 3, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Carlos Fernandez-Del-Castillo, MD located?

The NPPES record lists a practice address at 15 Parkman St, Boston, MA, 02114. Phone: (617) 726-5644. Providers update this record themselves, so call before visiting.

How can I verify Carlos Fernandez-Del-Castillo, MD's license?

NPPES lists Massachusetts license number 78466, 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 Carlos Fernandez-Del-Castillo, MD prescribe under Medicare Part D?

In 2024, Carlos Fernandez-Del-Castillo, MD had 127 Medicare Part D claims for 43 beneficiaries; the average among surgery physician prescribers was 147. 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.