John Caston, M.D.
NPI 1992703128 · Psychiatry Physician · Spartanburg, SC
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Caston, M.D. is a Psychiatry Physician provider in Spartanburg, SC (NPI 1992703128).
Provider details
- NPI number
- 1992703128
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 6355 (SC)
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
735 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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 1 Hour90838 | 228 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 213 | $81 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 83 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 75 | $114 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 64 | $50 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 688 | 91 |
| Alprazolam | 183 | 24 |
| Gabapentin | 172 | 37 |
| Lorazepam | 162 | 22 |
| Trazodone Hcl | 129 | 27 |
| Bupropion Hclbrand: Bupropion Hcl Sr | 125 | 32 |
| Memantine Hcl | 106 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-12
- Last updated
- 2024-10-17
- Certified
- 2024-10-17
Frequently asked questions
- What is John Caston's NPI number?
- John Caston's National Provider Identifier (NPI) is 1992703128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Caston's specialty?
- John Caston is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Caston located?
- John Caston's practice location on file with NPPES is 480 Floyd Rd Ste a, Spartanburg, SC 29307-1518.
- What is John Caston's phone number?
- The practice phone number listed in the NPPES registry for John Caston is (864) 585-0328.
- Does John Caston accept Medicare?
- John Caston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Caston's NPI active?
- Yes — John Caston's NPI (1992703128) is active in the NPPES registry as of the last update on 2024-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.