Paul Williamson, MD
NPI 1336143676 · Colon & Rectal Surgery Physician · Orlando, FL
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Williamson, MD is a Colon & Rectal Surgery Physician provider in Orlando, FL (NPI 1336143676).
Provider details
- NPI number
- 1336143676
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME43182 (FL)
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
21 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
450 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 146 | $174 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 59 | $111 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 51 | $49 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 41 | $109 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $124 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 100 | 90 |
| Metronidazole | 30 | 24 |
| Neomycin Sulfate | 28 | 24 |
| Potassium Chloride | 26 | 22 |
| Mesalamine | 13 | — |
| Loperamide Hclbrand: Loperamide | 12 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 12 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$608 across 5 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
- 2005-06-01
- Last updated
- 2019-08-01
Frequently asked questions
- What is Paul Williamson's NPI number?
- Paul Williamson's National Provider Identifier (NPI) is 1336143676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Williamson's specialty?
- Paul Williamson is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Williamson located?
- Paul Williamson's practice location on file with NPPES is 110 W Underwood St, Orlando, FL 32806-1139.
- What is Paul Williamson's phone number?
- The practice phone number listed in the NPPES registry for Paul Williamson is (407) 422-3790.
- Does Paul Williamson accept Medicare?
- Paul Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Williamson's NPI active?
- Yes — Paul Williamson's NPI (1336143676) is active in the NPPES registry as of the last update on 2019-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.