Jonathan Alexander, M.D.
NPI 1619409257 · Hematology & Oncology Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Alexander, M.D. is a Hematology & Oncology Physician provider in Charleston, SC (NPI 1619409257).
Provider details
- NPI number
- 1619409257
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 83736 (SC)
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
9 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
102 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 35 Minutes99232 | 42 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 32 | $111 |
| 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 | 16 | $16 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 12 | $151 |
Typical Medicare-allowed amounts for these services range $16–$151 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-02
- Last updated
- 2024-06-26
- Certified
- 2024-06-26
Frequently asked questions
- What is Jonathan Alexander's NPI number?
- Jonathan Alexander's National Provider Identifier (NPI) is 1619409257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Alexander's specialty?
- Jonathan Alexander is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Alexander located?
- Jonathan Alexander's practice location on file with NPPES is 39 Sabin St Msc 635, Charleston, SC 29425-8905.
- What is Jonathan Alexander's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Alexander is (843) 792-4271.
- Does Jonathan Alexander accept Medicare?
- Jonathan Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Alexander's NPI active?
- Yes — Jonathan Alexander's NPI (1619409257) is active in the NPPES registry as of the last update on 2024-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.