DR. WILLIAM WINSTON NELSON MD
NPI 1851372536
Anesthesiology - Pediatric Anesthesiology in St Petersburg, FL

Active since November 09, 2005PECOS EnrolledAccepts Medicare Assignment
97.58/100
CMS Quality Rating
501 6TH AVE S, DEPT #6580070407, ST PETERSBURG, FL 33701(727) 767-8480(727) 767-8420 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 5, 2026, Aug 17, 2016 (2 updates tracked since 2016).

About Dr. William Winston Nelson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM WINSTON NELSON MD (NPI 1851372536) is an individual pediatric anesthesiology provider in St Petersburg, Florida, licensed in Florida (ME96917) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with St Josephs Hospital, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1851372536
Entity TypeIndividualMale
Primary Taxonomy207LP3000X
Provider Legal NameDR. WILLIAM WINSTON NELSONCredential: MD
Location Address501 6TH AVE S, DEPT #6580070407St Petersburg, FL 33701-4634
Mailing Address501 6th Ave S DeptSt Petersburg, FL 33701-4634 · (727) 767-8480 · Fax (727) 767-8420
Fax(727) 767-8420
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateNovember 9, 2005
Last NPPES UpdateMarch 5, 20262 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
NPI 1851372536 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAnesthesiology · Pediatric AnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207LP3000X
License Licensed in FL · ME96917
Definition
An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy.
501 6TH AVE S, St Petersburg, FL 33701

Other Identifiers 1

Medicaid278072100FL

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. William Winston Nelson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8628044195
PECOS Enrollment IDI20070802000507, I20230328000234
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Josephs Hospital

Acute Care Hospitals · Tampa, FL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number100075
Location3001 W Martin Luther King Jr BlvdTampa, FL 33677 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$70.04 typical visit price
range $17.57 – $139.16
Typical copayment $17.51 (range $4.39 – $34.79)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pediatrics
501 6TH AVE S
ST PETERSBURG, FL 33701
Radiology (Pediatric Radiology)
501 6TH AVE S, DEPARTMENT OF RADIOLOGY
SAINT PETERSBURG, FL 33701
Hospitalist
501 6TH AVE S
ST PETERSBURG, FL 33701
Social Worker
501 6TH AVE S, DEPT.# 7470
ST PETERSBURG, FL 33701
Nurse Practitioner (Pediatrics)
501 6TH AVE S, DEPT OF RADIOLOGY
ST PETERSBURG, FL 33701
Nurse Practitioner (Neonatal)
501 6TH AVE S
ST PETERSBURG, FL 33701
Psychologist
501 6TH AVE S
ST PETERSBURG, FL 33701
Nurse Practitioner (Neonatal)
501 6TH AVE S
ST PETERSBURG, FL 33701

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Nelson's NPI number?

The NPI number for William Nelson is 1851372536. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Where is William Nelson located?

William Nelson practices at 501 6th Ave S Dept #6580070407, St Petersburg, FL 33701. The listed phone number is (727) 767-8480.

What is William Nelson's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Is William Nelson enrolled in Medicare?

Yes. William Nelson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Nelson accept?

Health plans from Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list William Nelson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Nelson affiliated with any hospitals?

According to CMS data, William Nelson is affiliated with St Josephs Hospital.

When was this NPI record last updated?

The NPPES record for William Nelson was last updated on March 5, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.