John Alexander, M.D.
NPI 1144220286 · Cardiovascular Disease Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Alexander, M.D. is a Cardiovascular Disease Physician provider in Charlotte, NC (NPI 1144220286).
Provider details
- NPI number
- 1144220286
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 33780 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2020-10-28
- Certified
- 2020-09-06
Frequently asked questions
- What is John Alexander's NPI number?
- John Alexander's National Provider Identifier (NPI) is 1144220286, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Alexander's specialty?
- John Alexander is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Alexander located?
- John Alexander's practice location on file with NPPES is 1718 E 4th St, Charlotte, NC 28204-3261.
- What is John Alexander's phone number?
- The practice phone number listed in the NPPES registry for John Alexander is (704) 343-9800.
- Does John Alexander accept Medicare?
- John Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Alexander's NPI active?
- Yes — John Alexander's NPI (1144220286) is active in the NPPES registry as of the last update on 2020-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.