Arnulfo Izquierdo, D.O.
NPI 1588617989 · Family Medicine Physician · Harlingen, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arnulfo Izquierdo, D.O. is a Family Medicine Physician provider in Harlingen, TX (NPI 1588617989).
Provider details
- NPI number
- 1588617989
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- L2951 (TX)
Specialties & taxonomies
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
744 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 | 327 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 148 | $9 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 123 | $24 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $87 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 27 | $124 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 121 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 544 | 182 |
| Atorvastatin Calcium | 492 | 168 |
| Metformin Hcl | 482 | 156 |
| Losartan Potassium | 427 | 129 |
| Levothyroxine Sodium | 415 | 107 |
| Amlodipine Besylate | 366 | 120 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2011-10-31
Frequently asked questions
- What is Arnulfo Izquierdo's NPI number?
- Arnulfo Izquierdo's National Provider Identifier (NPI) is 1588617989, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arnulfo Izquierdo's specialty?
- Arnulfo Izquierdo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arnulfo Izquierdo located?
- Arnulfo Izquierdo's practice location on file with NPPES is 24750 Stuart Place Rd, Harlingen, TX 78552-6473.
- What is Arnulfo Izquierdo's phone number?
- The practice phone number listed in the NPPES registry for Arnulfo Izquierdo is (956) 412-1883.
- Does Arnulfo Izquierdo accept Medicare?
- Arnulfo Izquierdo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arnulfo Izquierdo's NPI active?
- Yes — Arnulfo Izquierdo's NPI (1588617989) is active in the NPPES registry as of the last update on 2011-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.