Active NPI
James L Nielsen, MD
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- Pensacola, FL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- License
- ME65879
- Practice address
- 5147 N 9TH Ave Ste 318
Pensacola, FL 32504-8710 - Phone
- (850) 416-2965
- Fax
- (850) 416-1833
- NPI assigned
- Jul 27, 2005
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 208G00000X | H2643 | TX | |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 208G00000X | ME65879 | FL | Primary |
Addresses
Primary practice location
5147 N 9TH Ave Ste 318
Pensacola, FL 32504-8710
Mailing address
4205 Belfort Rd Ste 4015
Jacksonville, FL 32216-3623
Phone (904) 450-6063
Other practice location 1
2604 Saint Michael Dr Ste 425
Texarkana, TX 75503-2378
Phone (903) 614-5600
Other practice location 2
601 7th St S Ste 205
St Petersburg, FL 33701-4748
Phone (727) 893-6234
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3756050 00 | Medicaid | FL | |
| 009409040 | Medicaid | AL |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | him@marshfieldclinichealthsystem.cernerdirect.com | Other |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in FL, IA, TX, WI, CO, ND
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 6
Care Compare profile
Medicare Care Compare- Specialty
- Thoracic Surgery
- Education
- Other, 1986
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1220 Sheyenne St
West Fargo, ND 58078-2637
Phone (701) 234-4445
4501 N Davis Hwy
Suite a
Pensacola, FL 32504-2724
Phone (850) 476-9000
5151 N 9TH Ave
Suite 200
Pensacola, FL 32504-8721
Phone (850) 416-4188
5225 23Rd Ave S
Fargo, ND 58104-7927
Phone (701) 417-2575
9981 S Healthpark Dr
Fort Myers, FL 33908-3618
Phone (239) 343-2606
Hospital & facility affiliations
- Trilogy Home Healthcare
- Lee Memorial Hospital
- Cape Coral Hospital
- Gulf Coast Medical Center Lee Health
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Coronary artery bypass graft (CABG) | 24 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| H2643 | TX | MD | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Sanford Medical Center Fargo | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Lee Health System Inc | Current | Accepting new patients | |
| Ohi West Medical Group, LLC | Current | Accepting new patients | |
| Halifax Healthcare Systems Inc | Current | Accepting new patients | |
| Sanford Medical Center Fargo | Current | Accepting new patients | |
| St Luke's Methodist Hospital | Current | Accepting new patients | |
| Christus Trinity Clinic Texas | Current | Accepting new patients | |
| Sacred Heart Health System, Inc. | Current | Accepting new patients | |
| Sanford Medical Center Fargo | Current | Accepting new patients | |
| Marshfield Clinic Inc | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Christus Trinity Clinic Texas | Current | Accepting new patients | |
| Poudre Valley Medical Group, LLC | Thoracic Surgery (Cardiothoracic Vascular Surgery) | Current | Accepting new patients |
| J. Mark Morales, M.D., PA | Current | Accepting new patients | |
| Lee Health System Inc | Current | Accepting new patients | |
| St. Luke's Methodist Hospital | Current | Accepting new patients | |
| Florida Hospital Physician Group Inc | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Ohi West Medical Group, LLC | Current | Accepting new patients | |
| Poudre Valley Medical Group, LLC | Thoracic Surgery (Cardiothoracic Vascular Surgery) | Current | Accepting new patients |
| Sacred Heart Health System Inc | Current | Accepting new patients | |
| Sacred Heart Health System, Inc. | Current | Accepting new patients | |
| Trinity Regional Medical Center | Thoracic Surgery (Cardiothoracic Vascular Surgery) | Past | Accepting new patients |
| Munroe Hma HMPN LLC | Thoracic Surgery (Cardiothoracic Vascular Surgery) | Past | Accepting new patients |
| Cardiovascular Care Providers, Inc. | Past | Accepting new patients |
Locations (25 of 27)
4404 Barranca Ln
Castle Rock, CO 80104
Phone (720) 733-5260
2695 Rocky Mountain Ave
Ste 150
Loveland, CO 80538
Phone (970) 624-2412
400 W 16th St
Pueblo, CO 81003
Phone (719) 584-4000
1600 N Grand Ave
Ste 500
Pueblo, CO 81003
Phone (719) 545-0663
1619 N Greenwood St
Ste 106
Pueblo, CO 81003
Phone (719) 595-7760
1138 Country Club Blvd
Cape Coral, FL 33990
Phone (239) 424-1900
303 N Clyde Morris Blvd
Daytona Beach, FL 32114
Phone (386) 425-2285
9981 S Healthpark Dr
Ste 2
Fort Myers, FL 33908
9981 S Healthpark Dr
Fort Myers, FL 33908
Phone (239) 332-5344
9981 S Healthpark Dr
Ste 156
Fort Myers, FL 33908
Phone (239) 343-5333
4205 Belfort Rd
Ste 4015
Jacksonville, FL 32216
Phone (904) 296-5691
8550 NE 138th Ln
Ste 401
Lady Lake, FL 32159
Phone (352) 347-2315
1720 SE 16th Ave
Ste 303
Ocala, FL 34471
Phone (352) 368-1661
4501 N Davis Hwy
Ste A
Pensacola, FL 32503
Phone (850) 476-9000
5147 N 9th Ave
Ste 318
Pensacola, FL 32504
Phone (850) 416-2965
601 7th St S
Ste 205
St Petersburg, FL 33701
Phone (727) 893-6234
701 6th St S
St Petersburg, FL 33701
Phone (727) 450-1144
13901 Bruce B Downs Blvd
Tampa, FL 33613
Phone (813) 615-7260
2700 Healing Way
Ste 310
Wesley Chapel, FL 33543
Phone (813) 779-1209
1026 A Ave NE
Cedar Rapids, IA 52402
Phone (319) 369-5970
202 10th St SE
Ste 225
Cedar Rapids, IA 52403
Phone (319) 364-7101
1220 Sheyenne St
West Fargo, ND 58078
Phone (701) 234-4445
1224 3rd St
Ste 1
Corpus Christi, TX 78404
Phone (361) 854-0201
2604 Saint Michael Dr
Ste 425
Texarkana, TX 75503
Phone (903) 614-5600
630 S Fleishel Ave
Tyler, TX 75701
Phone (903) 510-8888
Networks
- Freedom Health HMO Network
- Optimum HealthCare HMO Network
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/EGIFBA
- jnielsen473150@direct.leememorial.org
- him@marshfieldclinichealthsystem.cernerdirect.com
- james.nielsen@marshfieldclinichealthsystem.cernerdirect.com
Organizations & group practices 27
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.
-
- Internal Medicine Physician
- Fort Myers, FL
- NPI 1942058557
-
dba Ascension Medical Group Sacred Heart
- Ambulatory Family Planning Facility
- Pensacola, FL
- NPI 1962453308
-
dba Sanford 1717 Medical Building
- Family Medicine Physician
- West Fargo, ND
- NPI 1184917924
-
dba AdventHealth Medical Group
- Family Medicine Physician
- Tampa, FL
- NPI 1174955256
-
dba HHCSI Halifax Family Health Center
- Family Medicine Physician
- Daytona Beach, FL
- NPI 1245283530
-
dba Christus Trinity Clinic
- Family Medicine Physician
- Tyler, TX
- NPI 1285684225
-
- Specialist
- Corpus Christi, TX
- NPI 1225168784
-
dba Marshfield Clinic Florida Teleradiology/Telehealth
- Clinic/Center
- Marshfield, WI
- NPI 1952347981
-
dba UCHealth Medical Group
- General Practice Physician
- Loveland, CO
- NPI 1225356868
Thoracic Surgery (Cardiothoracic Vascular Surgery)
-
- Cardiovascular Disease Physician
- Cedar Rapids, IA
- NPI 1073553939
-
dba Bayfront Health St. Petersburg Medical Group
- Cardiovascular Disease Physician
- St Petersburg, FL
- NPI 1518572551
Hospital & facility affiliations 4
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Trilogy Home Healthcare
- Home Health Agency
- Fort Myers, FL
- NPI 1376517862
-
dba Gulf Coast Medical Center
- General Acute Care Hospital
- Fort Myers, FL
- NPI 1366281750
-
dba Lee Memorial Hospital
- General Acute Care Hospital
- Fort Myers, FL
- NPI 1427806025
-
dba Cape Coral Hospital
- General Acute Care Hospital
- Cape Coral, FL
- NPI 1780429076
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1122422400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1775174400000",
"number": "1295735710",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4205 BELFORT RD STE 4015",
"city": "JACKSONVILLE",
"state": "FL",
"postal_code": "322163623",
"telephone_number": "904-450-6063",
"fax_number": "904-539-4091"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5147 N 9TH AVE STE 318",
"city": "PENSACOLA",
"state": "FL",
"postal_code": "325048710",
"telephone_number": "850-416-2965",
"fax_number": "850-416-1833"
}
],
"practiceLocations": [
{
"address_1": "2604 Saint Michael Dr Ste 425",
"address_purpose": "LOCATION",
"city": "Texarkana",
"state": "TX",
"postal_code": "755032378",
"country_code": "US",
"telephone_number": "903-614-5600",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "601 7th St S Ste 205",
"address_purpose": "LOCATION",
"city": "St Petersburg",
"state": "FL",
"postal_code": "337014748",
"country_code": "US",
"telephone_number": "727-893-6234",
"fax_number": "727-893-6111",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NIELSEN",
"first_name": "JAMES",
"middle_name": "L",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-07-27",
"last_updated": "2026-04-03",
"certification_date": "2026-04-03",
"status": "A"
},
"taxonomies": [
{
"code": "208G00000X",
"taxonomy_group": "",
"desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
"state": "TX",
"license": "H2643",
"primary": false
},
{
"code": "208G00000X",
"taxonomy_group": "",
"desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
"state": "FL",
"license": "ME65879",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "3756050 00",
"state": "FL"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "009409040",
"state": "AL"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
"affiliation": "N",
"use": "OTHER",
"useDescription": "Other",
"useOtherDescription": "Other",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "Other",
"address_1": "1000 N Oak Ave",
"city": "Marshfield",
"state": "WI",
"country_code": "US",
"postal_code": "544495703",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Pensacola, FL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.