Mithunan Maheswaranathan, M.D.
NPI 1255744876 · Internal Medicine Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mithunan Maheswaranathan, M.D. is a Internal Medicine Physician provider in Charleston, SC (NPI 1255744876).
Provider details
- NPI number
- 1255744876
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- LL36884 (SC)
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 tenure25% of score
12 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
303 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 115 | $165 |
| 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 | 107 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $120 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 17 | $206 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 16 | $135 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 223 | 70 |
| Methotrexate Sodiumbrand: Methotrexate | 178 | 47 |
| Prednisone | 148 | 61 |
| Mycophenolate Mofetil | 55 | — |
| Allopurinol | 52 | — |
| Leflunomide | 38 | 11 |
| Adalimumabbrand: Humira(cf) Pen | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$48 across 1 record (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
- 2014-06-11
- Last updated
- 2014-06-11
Frequently asked questions
- What is Mithunan Maheswaranathan's NPI number?
- Mithunan Maheswaranathan's National Provider Identifier (NPI) is 1255744876, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mithunan Maheswaranathan's specialty?
- Mithunan Maheswaranathan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mithunan Maheswaranathan located?
- Mithunan Maheswaranathan's practice location on file with NPPES is 169 Ashley Ave, Charleston, SC 29425-8905.
- What is Mithunan Maheswaranathan's phone number?
- The practice phone number listed in the NPPES registry for Mithunan Maheswaranathan is (843) 792-0435.
- Does Mithunan Maheswaranathan accept Medicare?
- Mithunan Maheswaranathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mithunan Maheswaranathan's NPI active?
- Yes — Mithunan Maheswaranathan's NPI (1255744876) is active in the NPPES registry as of the last update on 2014-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.