Active NPI
Sebastian Alejandro Mikulic, DO
- Pulmonary Disease Physician
- Fernandina Beach, FL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pulmonary Disease Physician
- License
- OS18647
- Practice address
- 1348 S 18TH St Ste 210
Fernandina Beach, FL 32034-4785 - Phone
- (904) 261-9108
- Fax
- (904) 261-9911
- NPI assigned
- Mar 27, 2019
- 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 |
|---|---|---|---|---|
| Pulmonary Disease Physician | 207RP1001X | OS18647 | FL | Primary |
| Internal Medicine Physician | 207R00000X | OS18647 | FL |
Addresses
Primary practice location
1348 S 18TH St Ste 210
Fernandina Beach, FL 32034-4785
Mailing address
PO Box 746641
Atlanta, GA 30374-6641
Phone (904) 202-2092
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 114413000 | Medicaid | FL |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | smikulic1945629@ehrdirect.mayoclinicmsg.org |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in FL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20220608001626 | FL | Practitioner - Pulmonary Disease | 7012245335 | Reassigns benefits to 1 organization |
Care Compare profile
Medicare Care Compare- Specialty
- Pulmonary Disease
- Education
- Lake Erie College of Osteopathic Medicine, Erie, 2019
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1348 S 18TH St
Suite 210
Fernandina Beach, FL 32034-4785
Phone (904) 261-9108
4500 San Pablo Rd S
Jacksonville, FL 32224-1865
Phone (904) 953-2000
Hospital & facility affiliations
- Mayo Clinic
Merit-based Incentive Payment System (MIPS)
- Final score
- 84.24 of 100
- Quality
- 74.85
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 72.62
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Mayo Clinic Jacksonville | Current | Accepting new patients | |
| University of Florida Jacksonville Physicians Inc | Internal Medicine | Current | Accepting new patients |
| University of Florida Jacksonville Physicians, Inc. | Current | Accepting new patients | |
| Mayo Clinic Jacksonville | Current | Accepting new patients | |
| University of Florida Jacksonville Physicians, Inc. | Internal Medicine | Current | Accepting new patients |
| Baptist Pulmonary Specialists Inc | Pulmonary Disease | Past | Accepting new patients |
Locations
655 W 8th St
Jacksonville, FL 32209
Phone (904) 244-1680
4500 San Pablo Rd S
Jacksonville, FL 32224
Phone (904) 721-4815
2001 Kingsley Ave
Orange Park, FL 32073
Phone (904) 215-7015
200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850
Interoperability endpoints
- sebastian.mikulic.1@21075.direct.athenahealth.com
- smikulic1945629@ehrdirect.mayoclinicmsg.org
Organizations & group practices 6
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.
-
- Pulmonary Disease Physician
- Jacksonville, FL
- NPI 1689817405
Pulmonary Disease
-
- Home Infusion Therapy Pharmacy
- Jacksonville, FL
- NPI 1003510116
-
- Internal Medicine Physician
- Jacksonville, FL
- NPI 1659531929
Internal Medicine
-
- Internal Medicine Physician
- Jacksonville, FL
- NPI 1144276452
Internal Medicine
-
- Physiological Laboratory
- Jacksonville, FL
- NPI 1831800952
Hospital & facility affiliations 1
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": "1553644800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783468800000",
"number": "1013478650",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 746641",
"city": "ATLANTA",
"state": "GA",
"postal_code": "303746641",
"telephone_number": "904-202-2092",
"fax_number": "904-376-4075"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1348 S 18TH ST STE 210",
"city": "FERNANDINA BEACH",
"state": "FL",
"postal_code": "320344785",
"telephone_number": "904-261-9108",
"fax_number": "904-261-9911"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MIKULIC",
"first_name": "SEBASTIAN",
"middle_name": "ALEJANDRO",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-03-27",
"last_updated": "2026-07-08",
"certification_date": "2026-07-08",
"status": "A"
},
"taxonomies": [
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "FL",
"license": "OS18647",
"primary": true
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "FL",
"license": "OS18647",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "114413000",
"state": "FL"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "smikulic1945629@ehrdirect.mayoclinicmsg.org",
"affiliation": "N",
"address_1": "4500 San Pablo Rd S",
"city": "Jacksonville",
"state": "FL",
"country_code": "US",
"postal_code": "322241865",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Fernandina Beach, FL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.