Active NPI
Robert V Klaasen, M.D.
- Family Medicine Physician
- Clearwater, FL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 68935
- Practice address
- 29335 US Highway 19 N
Clearwater, FL 33761-2146 - Phone
- (727) 739-9736
- NPI assigned
- Feb 17, 2006
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 68935 | TN | Primary |
Addresses
Primary practice location
29335 US Highway 19 N
Clearwater, FL 33761-2146
Mailing address
4442B Lebanon Pike
Hermitage, TN 37076-1312
Phone (615) 852-5668
Other practice location 1
4442B Lebanon Pike
Hermitage, TN 37076-1312
Phone (615) 852-5668
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 080135192 | Other | IN | RAILROAD MEDICARE # |
| Q087409 | Medicaid | TN |
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | robert.klaasen.2@29601.direct.athenahealth.com | ||
| Direct Messaging Address | robert.klaasen.1@29601.direct.athenahealth.com | Direct |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TN, FL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Indiana University School of Medicine, 1992
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
29335 US Hwy 19 N
Clearwater, FL 33761-2146
Phone (727) 202-5111
4442 B Lebanon Pike
Hermitage, TN 37076-1312
Phone (615) 852-5668
Hospital & facility affiliations
- Amedisys Home Health
- Tristar Summit Medical Center
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Removal of skin lesions | 1-10 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 68935 | TN | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Centerwell Senior Primary Care TN PC | Family Medicine | Current | Accepting new patients |
| Centerwell Senior Primary Care TN PC | Family Medicine | Current | Accepting new patients |
| Centerwell Senior Primary Care TN PC | Family Medicine | Current | Accepting new patients |
| Major Hospital | Past | Accepting new patients | |
| Centerwell Senior Primary Care TN PC | Family Medicine | Past | Accepting new patients |
Locations
4700 Millenia Blvd
Ste 650
Orlando, FL 32839
Phone (407) 533-6837
4442 Lebanon Pike
#B
Hermitage, TN 37076
4442B Lebanon Pike
Hermitage, TN 37076
Phone (615) 455-5627
1436 W Main St
Lebanon, TN 37087
Phone (615) 965-6108
4901 Nolensville Rd
Nashville, TN 37211
Phone (615) 760-5022
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.
-
- Internal Medicine Physician
- Nashville, TN
- NPI 1649900135
Family Medicine
-
- Internal Medicine Physician
- Miami, FL
- NPI 1649324278
-
- Internal Medicine Physician
- Hermitage, TN
- NPI 1215641758
Family Medicine
-
- Internal Medicine Physician
- Murfreesboro, TN
- NPI 1578354668
Family Medicine
-
- Internal Medicine Physician
- Miami, FL
- NPI 1770222473
Family Medicine
-
- General Acute Care Hospital
- Shelbyville, IN
- NPI 1174555692
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Nashville, TN
- NPI 1689622466
-
- General Acute Care Hospital
- Hermitage, TN
- NPI 1982650024
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1140134400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788998400000",
"number": "1760457329",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4442B LEBANON PIKE",
"city": "HERMITAGE",
"state": "TN",
"postal_code": "370761312",
"telephone_number": "615-852-5668",
"fax_number": "877-721-8404"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "29335 US HIGHWAY 19 N",
"city": "CLEARWATER",
"state": "FL",
"postal_code": "337612146",
"telephone_number": "727-739-9736"
}
],
"practiceLocations": [
{
"address_1": "4442B Lebanon Pike",
"address_purpose": "LOCATION",
"city": "Hermitage",
"state": "TN",
"postal_code": "370761312",
"country_code": "US",
"telephone_number": "615-852-5668",
"fax_number": "877-721-8404",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KLAASEN",
"first_name": "ROBERT",
"middle_name": "V",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-17",
"last_updated": "2026-09-10",
"certification_date": "2026-09-10",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "TN",
"license": "68935",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "RAILROAD MEDICARE #",
"identifier": "080135192",
"state": "IN"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "Q087409",
"state": "TN"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "robert.klaasen.2@29601.direct.athenahealth.com",
"affiliation": "N",
"address_1": "29335 US Highway 19 N",
"city": "Clearwater",
"state": "FL",
"country_code": "US",
"postal_code": "337612146",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "robert.klaasen.1@29601.direct.athenahealth.com",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "4442B Lebanon Pike",
"city": "Hermitage",
"state": "TN",
"country_code": "US",
"postal_code": "370761312",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Clearwater, FL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 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.