Carlo Castillo, D.O.
NPI 1518176031 · Nephrology Physician · Huntsville, AL
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlo Castillo, D.O. is a Nephrology Physician provider in Huntsville, AL (NPI 1518176031).
Provider details
- NPI number
- 1518176031
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5101016534 (MI)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,580 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 466 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 296 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 183 | $78 |
| Hemodialysis Procedure With Physician Evaluation90935 | 160 | $65 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 120 | $15 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydralazine Hcl | 86 | 23 |
| Nifedipinebrand: Nifedipine Er | 65 | 20 |
| Sevelamer Carbonate | 64 | 18 |
| Carvedilol | 55 | 16 |
| Lidocaine/Prilocainebrand: Lidocaine-Prilocaine | 52 | — |
| Amlodipine Besylate | 45 | 16 |
| Torsemide | 41 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,465 across 60 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-22
- Last updated
- 2012-07-19
Frequently asked questions
- What is Carlo Castillo's NPI number?
- Carlo Castillo's National Provider Identifier (NPI) is 1518176031, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlo Castillo's specialty?
- Carlo Castillo is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Carlo Castillo located?
- Carlo Castillo's practice location on file with NPPES is 2780 Bob Wallace Ave Sw, Huntsville, AL 35805-4104.
- What is Carlo Castillo's phone number?
- The practice phone number listed in the NPPES registry for Carlo Castillo is (256) 533-4626.
- Does Carlo Castillo accept Medicare?
- Carlo Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carlo Castillo's NPI active?
- Yes — Carlo Castillo's NPI (1518176031) is active in the NPPES registry as of the last update on 2012-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.