John Middleton
NPI 1033293923 · Nephrology Physician · Durham, NC
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Middleton is a Nephrology Physician provider in Durham, NC (NPI 1033293923).
Provider details
- NPI number
- 1033293923
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 30418 (NC)
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
760 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 154 | $347 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 139 | $71 |
| Hemodialysis Procedure With Physician Evaluation90935 | 124 | $66 |
| Dialysis Procedure Including 1 Evaluation90945 | 123 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 46 | $89 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Empagliflozinbrand: Jardiance | 62 | 11 |
| Carvedilol | 50 | 14 |
| Furosemide | 49 | 14 |
| Amlodipine Besylate | 47 | 16 |
| Calcitriol | 41 | — |
| Losartan Potassium | 39 | 16 |
| Torsemide | 36 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,624 across 7 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
- 2006-10-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Middleton's NPI number?
- John Middleton's National Provider Identifier (NPI) is 1033293923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Middleton's specialty?
- John Middleton is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is John Middleton located?
- John Middleton's practice location on file with NPPES is 2100 Erwin Rd, Durham, NC 27710-0001.
- What is John Middleton's phone number?
- The practice phone number listed in the NPPES registry for John Middleton is (919) 620-4467.
- Does John Middleton accept Medicare?
- John Middleton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Middleton's NPI active?
- Yes — John Middleton's NPI (1033293923) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.