Blaithin Mcmahon, MD PH,D.
NPI 1922395037 · Nephrology Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Blaithin Mcmahon, MD PH,D. is a Nephrology Physician provider in Charleston, SC (NPI 1922395037).
Provider details
- NPI number
- 1922395037
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PH,D.
- Sex
- Female
- Sole proprietor
- No
- License
- 81550 (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
14 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
561 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 140 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 120 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $91 |
| 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 | 44 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 47 | 13 |
| Furosemide | 45 | 14 |
| Losartan Potassium | 34 | 11 |
| Potassium Chloride | 31 | — |
| Amlodipine Besylate | 27 | — |
| Lisinopril | 22 | — |
| Tamsulosin Hcl | 22 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,608 across 10 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
- 2011-07-10
- Last updated
- 2018-10-09
Frequently asked questions
- What is Blaithin Mcmahon's NPI number?
- Blaithin Mcmahon's National Provider Identifier (NPI) is 1922395037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Blaithin Mcmahon's specialty?
- Blaithin Mcmahon is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Blaithin Mcmahon located?
- Blaithin Mcmahon's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-0005.
- What is Blaithin Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Blaithin Mcmahon is (843) 792-1414.
- Does Blaithin Mcmahon accept Medicare?
- Blaithin Mcmahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Blaithin Mcmahon's NPI active?
- Yes — Blaithin Mcmahon's NPI (1922395037) is active in the NPPES registry as of the last update on 2018-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.