Christopher Knox, MD
NPI 1871583229 · Family Medicine Physician · Harrison, AR
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Knox, MD is a Family Medicine Physician provider in Harrison, AR (NPI 1871583229).
Provider details
- NPI number
- 1871583229
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- E2295 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
495 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 202 | $7 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 180 | $160 |
| Critical Care, First 30-74 Minutes99291 | 58 | $193 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 55 | $107 |
Typical Medicare-allowed amounts for these services range $7–$193 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 61 | 55 |
| Ondansetronbrand: Ondansetron Odt | 38 | 33 |
| Prednisone | 29 | 28 |
| Promethazine Hcl | 19 | 15 |
| Doxycycline Hyclate | 18 | 18 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 18 |
| Nitrofurantoin Monohyd/M-Cryst |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Christopher Knox's NPI number?
- Christopher Knox's National Provider Identifier (NPI) is 1871583229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Knox's specialty?
- Christopher Knox is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Knox located?
- Christopher Knox's practice location on file with NPPES is 620 N Willow St, Harrison, AR 72601-2994.
- What is Christopher Knox's phone number?
- The practice phone number listed in the NPPES registry for Christopher Knox is (870) 365-2076.
- Does Christopher Knox accept Medicare?
- Christopher Knox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Knox's NPI active?
- Yes — Christopher Knox's NPI (1871583229) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.