NPPES file of Aug 9, 2026

William Louis Porfilio, MD

Ophthalmology Physician · Burlington, NC

William Louis Porfilio, MD is an ophthalmology physician with a practice address in Burlington, North Carolina, and NPI 1285836288, issued on Jun 1, 2007. Check the license (North Carolina 200700790, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285836288
Name
William Louis Porfilio
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
200700790 NC
Self-reported in NPPES; status is on the state search
Practice location
1016 Kirkpatrick Road, Burlington, NC 27215
Phone
(336) 228-0254
Enumerated
Jun 1, 2007
Record last updated
Nov 19, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(336) 584-0101
Medicaid ID
5906899 NC
Medicare enrollment
Enrolled (PECOS I20070831000171); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 2003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1016 Kirkpatrick Road

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chadwick BrasingtonOphthalmology Physician1033132923
  2. Thomas Devetski, ODOptometrist1679594758
  3. Steven Dingeldein, MDOphthalmology Physician1295759330
  4. Cynthia Donnelly, ODOptometrist1255361291
  5. George Katsoudas, ODOptometrist1447212618
  6. Van Romine, ODOptometrist1427082791

Verify William Louis Porfilio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 200700790
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the North Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% more Medicare Part D claims than the average ophthalmology physician in 2024

1,945 Medicare Part D claims for 537 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.

  1. William Porfilio1,945
  2. Specialty average1,518

Most prescribed

  1. Latanoprost469 claims
  2. Lumigan146 claims
  3. Neomycin-Polymyxin-Dexameth142 claims
  4. Prednisolone Acetate129 claims
  5. Dorzolamide-Timolol126 claims
  6. Brimonidine Tartrate95 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $1,072.15

28 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Porfilio$1,072.15
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Alamance Eye Care PABurlington, NC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Louis Porfilio among 688 ophthalmology physician records in North Carolina

William Louis Porfilio, MD is one of 688 ophthalmology physician records with a practice address in North Carolina. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 56% of them.

  • NPI issued2007 · 56% of these records are older, 36% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2003 · median 2004 among the 463 with a school on file
  • Record last updated2009 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in North Carolina

There are 688 ophthalmology physician records in North Carolina.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Chadwick BrasingtonBurlington, NC 272151033132923
  2. Michael Brennan, MDBurlington, NC 272151902828254
  3. Steven Dingeldein, MDBurlington, NC 272151295759330
  4. Anthony Fiacco, MDBurlington, NC 272151649865411
  5. Blake Hampton, MDBurlington, NC 272151831682962
  6. Bradley King, MD, MPHBurlington, NC 272151043504152
  7. Nisha Mukherjee, M.D.Burlington, NC 272151437441888
  8. Charles Sydnor, MDBurlington, NC 272151538189626

Common questions

What is William Louis Porfilio, MD's NPI number?

William Louis Porfilio, MD's National Provider Identifier (NPI) is 1285836288, issued on Jun 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is William Louis Porfilio, MD located?

The NPPES record lists a practice address at 1016 Kirkpatrick Road, Burlington, NC, 27215. Phone: (336) 228-0254. Providers update this record themselves, so call before visiting.

How can I verify William Louis Porfilio, MD's license?

NPPES lists North Carolina license number 200700790, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Louis Porfilio, MD prescribe under Medicare Part D?

In 2024, William Louis Porfilio, MD had 1,945 Medicare Part D claims for 537 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.