Christopher Mahr, MD
NPI 1801880190 · Family Medicine Physician · Sumter, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Mahr, MD is a Family Medicine Physician provider in Sumter, SC (NPI 1801880190).
Provider details
- NPI number
- 1801880190
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28038 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
8,064 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,108 | $112 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 708 | $8 |
| 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 | 639 | $15 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 620 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 493 | $13 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 148 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 874 | 240 |
| Amlodipine Besylate | 651 | 151 |
| Potassium Chloride | 311 | 70 |
| Losartan Potassium | 287 | 68 |
| Metformin Hcl | 285 | 71 |
| Hydrochlorothiazide | 276 | 53 |
| Gabapentin | 271 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109 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
- 2005-09-01
- Last updated
- 2026-02-12
Frequently asked questions
- What is Christopher Mahr's NPI number?
- Christopher Mahr's National Provider Identifier (NPI) is 1801880190, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Mahr's specialty?
- Christopher Mahr is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Mahr located?
- Christopher Mahr's practice location on file with NPPES is 698 Bultman Dr, Sumter, SC 29150-2549.
- What is Christopher Mahr's phone number?
- The practice phone number listed in the NPPES registry for Christopher Mahr is (803) 773-5227.
- Does Christopher Mahr accept Medicare?
- Christopher Mahr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Mahr's NPI active?
- Yes — Christopher Mahr's NPI (1801880190) is active in the NPPES registry as of the last update on 2026-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.