Individual provider Active NPI

William Winston Nelson, MD

  • Pediatric Anesthesiology Physician
  • St Petersburg, FL
National Provider Identifier
1851372536
Registry record updated Mar 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Anesthesiology PhysicianTaxonomy code 207LP3000X
License
ME96917 Issued in FL
Practice address
501 6TH Ave S
Dept #6580070407
St Petersburg, FL 33701-4634
Phone
(727) 767-8480
Fax
(727) 767-8420
NPI assigned
Nov 9, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 5, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Anesthesiology Physician 207LP3000X ME96917 FL Primary

Addresses

Primary practice location

501 6TH Ave S
Dept #6580070407
St Petersburg, FL 33701-4634

Mailing address

501 6TH Ave S Dept
St Petersburg, FL 33701-4634
Phone (727) 767-8480

Other identifiers 1

IdentifierTypeStateIssuer
278072100MedicaidFL

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in FL, CO2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20070802000507 FL Practitioner - Anesthesiology 8628044195 Reassigns benefits to 2 organizations
I20230328000234 CO Practitioner - Anesthesiology 8628044195 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Other, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Poudre Valley Medical Group LLCGroup PAC ID 9638208549, 2,425 clinicians
Baycare Medical Group, Inc.Group PAC ID 6406753623, 1,539 clinicians

Practice addresses (Care Compare)

1400 E Boulder
Suite 2410 Pre Procedure Memorial
Colorado Springs, CO 80909-5533
Phone (719) 365-6525

1400 E Boulder St
Colorado Springs, CO 80909-5533

2461 Enterprise Rd
Suite C
Clearwater, FL 33763-1726
Phone (727) 725-5060

3001 W Dr Martin Luther King Jr Blvd
Tampa, FL 33607-6307
Phone (813) 321-6589

3003 W Dr Martin Luther King Jr Blvd
Tampa, FL 33607-6307

4404 Barranca LN
Unit 101
Castle Rock, CO 80104-7419
Phone (720) 733-5260

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
ME96917FLMDPediatric Anesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Greater Florida Anesthesiologists, LLC Anesthesiology CurrentSince May 1, 2022 Accepting new patients
Poudre Valley Medical Group, LLC CurrentSince Jun 1, 2025 Accepting new patients
Greater Florida Anesthesiologists, LLC Anesthesiology Current Accepting new patients
Baycare Medical Group, Inc CurrentSince Oct 1, 2025 Accepting new patients
Baycare Medical Group, Inc. Current Accepting new patients
Baycare Medical Group, Inc. CurrentSince Oct 1, 2025 Accepting new patients
Greater Florida Anesthesiologists, LLC Anesthesiology CurrentSince May 1, 2022 Accepting new patients
Poudre Valley Medical Group, LLC Anesthesiology Current Accepting new patients
American Anesthesiology Associates of Florida, Inc. Anesthesiology Past Accepting new patients
Pediatric Physician Services, Inc. Past Accepting new patients

Locations

4404 Barranca Ln
Castle Rock, CO 80104
Phone (720) 733-5260

400 W 16th St
Pueblo, CO 81003
Phone (719) 584-4000

58 Club Manor Dr
Pueblo, CO 81008
Phone (719) 584-4045

1619 N Greenwood St
Ste 106
Pueblo, CO 81003
Phone (719) 595-7760

300 Pinellas St
Clearwater, FL 33756
Phone (727) 461-8552

2461 Enterprise Rd
Ste C
Clearwater, FL 33763
Phone (727) 725-5060

2140 W 68th St
Hialeah, FL 33016
Phone (305) 822-4107

6633 Forest Ave
Ste 105
New Prt Rchy, FL 34653
Phone (727) 845-4300

460 N State Road 7
Royal Palm Beach, FL 33411
Phone (561) 792-7333

900 Carillon Pkwy
Ste 205
St Petersburg, FL 33716
Phone (727) 561-2710

3003 W Mlk Blvd
Tampa, FL 33607
Phone (813) 357-0630

3001 W Mlk Blvd
Tampa, FL 33607
Phone (813) 361-6778

7050 Gall Blvd
Zephyrhills, FL 33541
Phone (813) 779-1209

2600 Bruce B Downs Blvd
Zephyrhills, FL 33544
Phone (954) 393-5000

Interoperability endpoints

  • Direct secure messaging: wnelson749414@direct.hopkinsmedicine.org

Organizations & group practices 11

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 9

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1131494400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772668800000",
    "number": "1851372536",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "501 6TH AVE S DEPT",
            "city": "ST PETERSBURG",
            "state": "FL",
            "postal_code": "337014634",
            "telephone_number": "727-767-8480",
            "fax_number": "727-767-8420"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "501 6TH AVE S",
            "address_2": "DEPT #6580070407",
            "city": "ST PETERSBURG",
            "state": "FL",
            "postal_code": "337014634",
            "telephone_number": "727-767-8480",
            "fax_number": "727-767-8420"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NELSON",
        "first_name": "WILLIAM",
        "middle_name": "WINSTON",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-09",
        "last_updated": "2026-03-05",
        "certification_date": "2026-03-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207LP3000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pediatric Anesthesiology",
            "state": "FL",
            "license": "ME96917",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "278072100",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in St Petersburg, FL

Sources for this page

Verify at the official NPI Registry.