John Foust, MD
NPI 1205834835 · Hematology & Oncology Physician · Oak Ridge, TN
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Foust, MD is a Hematology & Oncology Physician provider in Oak Ridge, TN (NPI 1205834835).
Provider details
- NPI number
- 1205834835
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD017405 (TN)
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
836 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 | 496 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 223 | $63 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 31 | $127 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 24 | $78 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $137 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 118 | 26 |
| Ondansetron Hcl | 55 | 24 |
| Ibrutinibbrand: Imbruvica | 51 | — |
| Acalabrutinib Maleatebrand: Calquence | 50 | — |
| Apixabanbrand: Eliquis | 39 | 12 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 37 | 24 |
| Tamoxifen Citrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,070 across 216 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
- 2005-07-08
- Last updated
- 2016-10-12
Frequently asked questions
- What is John Foust's NPI number?
- John Foust's National Provider Identifier (NPI) is 1205834835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Foust's specialty?
- John Foust is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Foust located?
- John Foust's practice location on file with NPPES is 800 Oak Ridge Tpke, Oak Ridge, TN 37830-6957.
- What is John Foust's phone number?
- The practice phone number listed in the NPPES registry for John Foust is (865) 444-3050.
- Does John Foust accept Medicare?
- John Foust is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Foust's NPI active?
- Yes — John Foust's NPI (1205834835) is active in the NPPES registry as of the last update on 2016-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.