Christopher Castle, ANP-C
NPI 1568406684 · Adult Health Nurse Practitioner · Greeneville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Castle, ANP-C is a Adult Health Nurse Practitioner provider in Greeneville, TN (NPI 1568406684).
Provider details
- NPI number
- 1568406684
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP-C
- Sex
- Male
- Sole proprietor
- No
- License
- 10471 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
1,017 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 | 342 | $101 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 198 | $54 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 113 | $71 |
| X-Ray of Knee, 1-2 Views73560 | 75 | $26 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 55 | $31 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 274 | 217 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 108 | 72 |
| Meloxicam | 70 | 36 |
| Baclofen | 69 | 45 |
| Oxycodone Hcl | 24 | 16 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 19 | 15 |
| Naloxone Hcl | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 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
- 2006-06-16
- Last updated
- 2024-02-27
- Certified
- 2024-02-27
Frequently asked questions
- What is Christopher Castle's NPI number?
- Christopher Castle's National Provider Identifier (NPI) is 1568406684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Castle's specialty?
- Christopher Castle is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christopher Castle located?
- Christopher Castle's practice location on file with NPPES is 1420 Tusculum Blvd, Greeneville, TN 37745-4279.
- What is Christopher Castle's phone number?
- The practice phone number listed in the NPPES registry for Christopher Castle is (423) 783-5510.
- Does Christopher Castle accept Medicare?
- Christopher Castle is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Castle's NPI active?
- Yes — Christopher Castle's NPI (1568406684) is active in the NPPES registry as of the last update on 2024-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.