Catherine Callahan, MD
NPI 1407870926 · Internal Medicine Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Callahan, MD is a Internal Medicine Physician provider in Charlotte, NC (NPI 1407870926).
Provider details
- NPI number
- 1407870926
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 92028 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,720 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 | 565 | $125 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 393 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 347 | $8 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 338 | $16 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 301 | $13 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 297 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 508 | 136 |
| Levothyroxine Sodium | 450 | 131 |
| Atorvastatin Calcium | 399 | 115 |
| Amlodipine Besylate | 242 | 73 |
| Pantoprazole Sodium | 200 | 63 |
| Omeprazole | 197 | 62 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$652 across 34 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
Additional practice locations (1)
- 200 South College StreetSuite 500Charlotte, NC 28202-2067Phone: (704) 302-8700Fax: (704) 302-8701
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2026-05-06
- Certified
- 2026-05-06
Frequently asked questions
- What is Catherine Callahan's NPI number?
- Catherine Callahan's National Provider Identifier (NPI) is 1407870926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Callahan's specialty?
- Catherine Callahan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Callahan located?
- Catherine Callahan's practice location on file with NPPES is 10635 Park Rd Ste I, Charlotte, NC 28210-8408.
- What is Catherine Callahan's phone number?
- The practice phone number listed in the NPPES registry for Catherine Callahan is (704) 495-6334.
- Does Catherine Callahan accept Medicare?
- Catherine Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Callahan's NPI active?
- Yes — Catherine Callahan's NPI (1407870926) is active in the NPPES registry as of the last update on 2026-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.