John Callahan, M. D.
NPI 1609988393 · Family Medicine Physician · Aurora, NC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Callahan, M. D. is a Family Medicine Physician provider in Aurora, NC (NPI 1609988393).
Provider details
- NPI number
- 1609988393
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 9701709 (NC)
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
19 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
3,489 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 | 497 | $125 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 439 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 320 | $176 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 316 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 253 | $13 |
| Blood Test, Clotting Time85610 | 235 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 190 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,069 | 287 |
| Amlodipine Besylate | 803 | 220 |
| Levothyroxine Sodium | 504 | 126 |
| Lisinopril | 501 | 143 |
| Rosuvastatin Calcium | 491 | 132 |
| Gabapentin | 474 | 124 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$891 across 49 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
- 2006-08-31
- Last updated
- 2012-08-04
Frequently asked questions
- What is John Callahan's NPI number?
- John Callahan's National Provider Identifier (NPI) is 1609988393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Callahan's specialty?
- John Callahan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Callahan located?
- John Callahan's practice location on file with NPPES is 151 3rd St, Aurora, NC 27806-9088.
- What is John Callahan's phone number?
- The practice phone number listed in the NPPES registry for John Callahan is (252) 322-4021.
- Does John Callahan accept Medicare?
- John Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Callahan's NPI active?
- Yes — John Callahan's NPI (1609988393) is active in the NPPES registry as of the last update on 2012-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.