Edwin Diaz, M.D.
NPI 1275508939 · Urology Physician · North Little Rock, AR
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Edwin Diaz, M.D. is a Urology Physician provider in North Little Rock, AR (NPI 1275508939).
Provider details
- NPI number
- 1275508939
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- E4076 (AR)
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
9,449 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) |
|---|---|---|
| Automated Urinalysis Test81003 | 1,046 | $2 |
| 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 | 796 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 742 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 665 | $114 |
| Blood Creatinine Level82565 | 542 | $5 |
| Psa (prostate Specific Antigen) Measurement, Total84153 | 516 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 656 | 195 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 518 | 160 |
| Finasteride | 325 | 105 |
| Mirabegronbrand: Myrbetriq | 141 | 52 |
| Levofloxacin | 123 | 107 |
| Solifenacin Succinate | 121 | 40 |
| Cephalexin | 114 | 95 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13,648 across 8 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
- 2006-02-17
- Last updated
- 2007-12-05
Frequently asked questions
- What is Edwin Diaz's NPI number?
- Edwin Diaz's National Provider Identifier (NPI) is 1275508939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Edwin Diaz's specialty?
- Edwin Diaz is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Edwin Diaz located?
- Edwin Diaz's practice location on file with NPPES is 3401 Springhill Dr, North Little Rock, AR 72117-2924.
- What is Edwin Diaz's phone number?
- The practice phone number listed in the NPPES registry for Edwin Diaz is (501) 945-2121.
- Does Edwin Diaz accept Medicare?
- Edwin Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Edwin Diaz's NPI active?
- Yes — Edwin Diaz's NPI (1275508939) is active in the NPPES registry as of the last update on 2007-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.