Alvaro Castillejo, D.O.
NPI 1356311153 · Family Medicine Physician · Elkin, NC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alvaro Castillejo, D.O. is a Family Medicine Physician provider in Elkin, NC (NPI 1356311153).
Provider details
- NPI number
- 1356311153
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 2002203150 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
1,151 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 257 | $120 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 155 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 140 | $85 |
| Hemoglobin A1c Level83036 | 97 | $10 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 97 | $121 |
| Urine Microalbumin (protein) Analysis82044 | 87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 525 | 130 |
| Atorvastatin Calcium | 304 | 79 |
| Losartan Potassium | 206 | 50 |
| Metformin Hcl | 187 | 44 |
| Levothyroxine Sodium | 171 | 42 |
| Hydrochlorothiazide | 169 | 41 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,854 across 112 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
- 2006-01-24
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is Alvaro Castillejo's NPI number?
- Alvaro Castillejo's National Provider Identifier (NPI) is 1356311153, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alvaro Castillejo's specialty?
- Alvaro Castillejo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alvaro Castillejo located?
- Alvaro Castillejo's practice location on file with NPPES is 124 Samaritans Ridge Rd, Elkin, NC 28621-2452.
- What is Alvaro Castillejo's phone number?
- The practice phone number listed in the NPPES registry for Alvaro Castillejo is (336) 835-7700.
- Does Alvaro Castillejo accept Medicare?
- Alvaro Castillejo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alvaro Castillejo's NPI active?
- Yes — Alvaro Castillejo's NPI (1356311153) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.