Nelson Madrilejo, MD
NPI 1023110103 · Endocrinology, Diabetes & Metabolism Physician · Bakersfield, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nelson Madrilejo, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Bakersfield, CA (NPI 1023110103).
Provider details
- NPI number
- 1023110103
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A47812 (CA)
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
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
4,428 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 | 2,123 | $122 |
| 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 | 1,386 | $15 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 210 | $32 |
| X-Ray of Chest, 2 Views71046 | 117 | $33 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 86 | $23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 241 | 51 |
| Levothyroxine Sodium | 204 | 65 |
| Empagliflozinbrand: Jardiance | 158 | 43 |
| Levothyroxine Sodiumbrand: Synthroid | 147 | 29 |
| Tirzepatidebrand: Mounjaro | 134 | 25 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 128 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,336 across 97 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
- 2006-09-01
- Last updated
- 2014-04-18
Frequently asked questions
- What is Nelson Madrilejo's NPI number?
- Nelson Madrilejo's National Provider Identifier (NPI) is 1023110103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nelson Madrilejo's specialty?
- Nelson Madrilejo is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Nelson Madrilejo located?
- Nelson Madrilejo's practice location on file with NPPES is 1801 16th St, Bakersfield, CA 93301.
- What is Nelson Madrilejo's phone number?
- The practice phone number listed in the NPPES registry for Nelson Madrilejo is (661) 326-8989.
- Does Nelson Madrilejo accept Medicare?
- Nelson Madrilejo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nelson Madrilejo's NPI active?
- Yes — Nelson Madrilejo's NPI (1023110103) is active in the NPPES registry as of the last update on 2014-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.