Charles Carter, M.D.
NPI 1235136565 · Nephrology Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Carter, M.D. is a Nephrology Physician provider in Tucson, AZ (NPI 1235136565).
Provider details
- NPI number
- 1235136565
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 62734 (AZ)
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
431 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 | 247 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $87 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 77 | $172 |
Typical Medicare-allowed amounts for these services range $87–$172 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Losartan Potassium | 104 | 30 |
| Lisinopril | 100 | 24 |
| Calcitriol | 85 | 38 |
| Amlodipine Besylate | 83 | 29 |
| Allopurinol | 64 | 19 |
| Furosemide | 58 | 22 |
| Empagliflozinbrand: Jardiance | 49 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-01
- Last updated
- 2021-05-20
- Certified
- 2021-05-20
Frequently asked questions
- What is Charles Carter's NPI number?
- Charles Carter's National Provider Identifier (NPI) is 1235136565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Carter's specialty?
- Charles Carter is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Carter located?
- Charles Carter's practice location on file with NPPES is 4511 N Campbell Ave Ste 100, Tucson, AZ 85718-6424.
- What is Charles Carter's phone number?
- The practice phone number listed in the NPPES registry for Charles Carter is (520) 529-6500.
- Does Charles Carter accept Medicare?
- Charles Carter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Carter's NPI active?
- Yes — Charles Carter's NPI (1235136565) is active in the NPPES registry as of the last update on 2021-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.