Darien Nelson
NPI 1265937486 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darien Nelson is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1265937486).
Provider details
- NPI number
- 1265937486
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 12331132-1205 (UT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
518 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 209 | $108 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 127 | $105 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 76 | $164 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 41 | $75 |
| Critical Care, First 30-74 Minutes99291 | 39 | $194 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 14 | $76 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 29 | 28 |
| Pantoprazole Sodium | 19 | 19 |
| Potassium Chloride | 15 | 14 |
| Atorvastatin Calcium | 15 | 15 |
| Cefazolin Sodium | 15 | — |
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 15 | — |
| Oxycodone Hcl | 14 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-28
- Last updated
- 2021-07-29
- Certified
- 2021-07-29
Frequently asked questions
- What is Darien Nelson's NPI number?
- Darien Nelson's National Provider Identifier (NPI) is 1265937486, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darien Nelson's specialty?
- Darien Nelson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Darien Nelson located?
- Darien Nelson's practice location on file with NPPES is 350 W Thomas Rd, Phoenix, AZ 85013-4409.
- What is Darien Nelson's phone number?
- The practice phone number listed in the NPPES registry for Darien Nelson is (602) 406-3540.
- Does Darien Nelson accept Medicare?
- Darien Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darien Nelson's NPI active?
- Yes — Darien Nelson's NPI (1265937486) is active in the NPPES registry as of the last update on 2021-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.