William Calton, MD
NPI 1609876374 · Vascular Surgery Physician · Spartanburg, SC
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Calton, MD is a Vascular Surgery Physician provider in Spartanburg, SC (NPI 1609876374).
Provider details
- NPI number
- 1609876374
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 21595 (SC)
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
1,879 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) |
|---|---|---|
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 359 | $37 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 320 | $20 |
| Ultrasound Study of Arm and Leg Arteries93922 | 252 | $11 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 248 | $32 |
| Ultrasound of Leg Arteries Or Artery Grafts93925 | 237 | $36 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 158 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 96 | 37 |
| Rivaroxabanbrand: Xarelto | 43 | — |
| Apixabanbrand: Eliquis | 34 | — |
| Atorvastatin Calcium | 29 | 11 |
| Cilostazol | 28 | — |
| Rosuvastatin Calcium | 21 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$733 across 17 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
- 2005-07-26
- Last updated
- 2020-12-08
- Certified
- 2020-12-08
Frequently asked questions
- What is William Calton's NPI number?
- William Calton's National Provider Identifier (NPI) is 1609876374, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Calton's specialty?
- William Calton is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Calton located?
- William Calton's practice location on file with NPPES is 225 E Wood St, Spartanburg, SC 29303-3050.
- What is William Calton's phone number?
- The practice phone number listed in the NPPES registry for William Calton is (864) 583-4420.
- Does William Calton accept Medicare?
- William Calton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Calton's NPI active?
- Yes — William Calton's NPI (1609876374) is active in the NPPES registry as of the last update on 2020-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.