Jack Sizemore, PA
NPI 1255644126 · Physician Assistant · Greenville, SC
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Sizemore, PA is a Physician Assistant provider in Greenville, SC (NPI 1255644126).
Provider details
- NPI number
- 1255644126
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 1549 (SC)
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
15 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
1,838 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 883 | $95 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 299 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 192 | $102 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 162 | $71 |
| Replacement of Knee Joint, Both Sides of Knee27447 | 105 | $162 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 59 | 53 |
| Oxycodone Hcl | 38 | 37 |
| Methocarbamol | 29 | 28 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 21 | 19 |
| Celecoxib | 19 | 17 |
| Meloxicam | 18 | 16 |
| Ondansetron Hcl | 15 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,069 across 16 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
- 2010-07-21
- Last updated
- 2016-06-23
Frequently asked questions
- What is Jack Sizemore's NPI number?
- Jack Sizemore's National Provider Identifier (NPI) is 1255644126, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Sizemore's specialty?
- Jack Sizemore is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jack Sizemore located?
- Jack Sizemore's practice location on file with NPPES is 35 International Dr, Greenville, SC 29615-4816.
- What is Jack Sizemore's phone number?
- The practice phone number listed in the NPPES registry for Jack Sizemore is (864) 234-7654.
- Does Jack Sizemore accept Medicare?
- Jack Sizemore is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Sizemore's NPI active?
- Yes — Jack Sizemore's NPI (1255644126) is active in the NPPES registry as of the last update on 2016-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.