Carlos Fernandez-Del-Castillo, MD
NPI 1225029788 · Surgery Physician · Boston, MA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlos Fernandez-Del-Castillo, MD is a Surgery Physician provider in Boston, MA (NPI 1225029788).
Provider details
- NPI number
- 1225029788
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 78466 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
565 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 152 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $99 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 55 | $238 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 49 | $99 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 43 | $181 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lipase/Protease/Amylasebrand: Creon | 77 | 21 |
| Lipase/Protease/Amylasebrand: Zenpep | 16 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-03
- Last updated
- 2012-12-03
Frequently asked questions
- What is Carlos Fernandez-Del-Castillo's NPI number?
- Carlos Fernandez-Del-Castillo's National Provider Identifier (NPI) is 1225029788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlos Fernandez-Del-Castillo's specialty?
- Carlos Fernandez-Del-Castillo is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Carlos Fernandez-Del-Castillo located?
- Carlos Fernandez-Del-Castillo's practice location on file with NPPES is 15 Parkman St, Boston, MA 02114-3117.
- What is Carlos Fernandez-Del-Castillo's phone number?
- The practice phone number listed in the NPPES registry for Carlos Fernandez-Del-Castillo is (617) 726-5644.
- Does Carlos Fernandez-Del-Castillo accept Medicare?
- Carlos Fernandez-Del-Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carlos Fernandez-Del-Castillo's NPI active?
- Yes — Carlos Fernandez-Del-Castillo's NPI (1225029788) is active in the NPPES registry as of the last update on 2012-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.