Sergio Penaherrera, MD
NPI 1538258744 · Internal Medicine Physician · Yuma, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sergio Penaherrera, MD is a Internal Medicine Physician provider in Yuma, AZ (NPI 1538258744).
Provider details
- NPI number
- 1538258744
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 22887 (AZ)
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
1,507 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 | 572 | $93 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 473 | $48 |
| 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 | 325 | $16 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 86 | $33 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 19 | $128 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 125 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 619 | 219 |
| Metformin Hcl | 524 | 190 |
| Rosuvastatin Calcium | 407 | 155 |
| Amlodipine Besylate | 392 | 144 |
| Losartan Potassium | 323 | 118 |
| Lisinopril | 316 | 113 |
| Dulaglutide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$478 across 26 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
- 2006-10-12
- Last updated
- 2025-01-03
- Certified
- 2025-01-03
Frequently asked questions
- What is Sergio Penaherrera's NPI number?
- Sergio Penaherrera's National Provider Identifier (NPI) is 1538258744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sergio Penaherrera's specialty?
- Sergio Penaherrera is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sergio Penaherrera located?
- Sergio Penaherrera's practice location on file with NPPES is 3800 W 24th St, Yuma, AZ 85364-6298.
- What is Sergio Penaherrera's phone number?
- The practice phone number listed in the NPPES registry for Sergio Penaherrera is (928) 344-6450.
- Does Sergio Penaherrera accept Medicare?
- Sergio Penaherrera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sergio Penaherrera's NPI active?
- Yes — Sergio Penaherrera's NPI (1538258744) is active in the NPPES registry as of the last update on 2025-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.