Active NPI
Vellaiappan Somasundaram, MD
- Internal Medicine Physician
- Frisco, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 35436
- Practice address
- 8195 Custer Rd Ste 110
Frisco, TX 75035-3195 - Phone
- (214) 666-6259
- NPI assigned
- May 12, 2006
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 35436 | KY | |
| Internal Medicine Physician | 207R00000X | 35436 | KY | Primary |
| Internal Medicine Physician | 207R00000X | T9601 | TX |
Addresses
Primary practice location
8195 Custer Rd Ste 110
Frisco, TX 75035-3195
Mailing address
230 O Connor Ridge Blvd Ste 110
Irving, TX 75038-6513
Phone (214) 666-6259
Other practice location 1
1630 W Prosper Trl Ste 430
Prosper, TX 75078-3742
Phone (214) 666-6259
Other identifiers 4
| Identifier | Type | State | Issuer |
|---|---|---|---|
| T9601 | Medicaid | TX | |
| S0413253 | Other | WV | MEDICARE |
| 64013253 | Medicaid | KY | |
| 6000592001 | Other | WV | MEDICAID |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in KY, TX
- 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
- Internal Medicine
- Education
- Other, 1986
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
306 Hospital Dr
Suite 204
South Williamson, KY 41503-4096
Phone (606) 237-5800
8195 Custer Rd
Frisco, TX 75035-3190
Phone (214) 666-6259
Hospital & facility affiliations
- Tug Valley Arh Regional Medical Center
- Pikeville Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 82.15 of 100
- Quality
- 47.14
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| T9601 | TX | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Williamson Emergency Physicians LLC | Single Specialty | Current | Accepting new patients |
| Appalachian Regional Healthcare, Inc | Single Specialty | Current | Accepting new patients |
| PHP Ins TX PLLC | Single Specialty | Current | Accepting new patients |
| Appalachian Regional Healthcare, Inc. | Single Specialty | Past | Accepting new patients |
| Appalachian Regional Healthcare, Inc. | Single Specialty | Past | Accepting new patients |
| Marshall Emergency Services Associates, PLLC | Single Specialty | Past | Accepting new patients |
| Passion Health Physicians PLLC | Internal Medicine | Past | Accepting new patients |
Locations
260 Hospital Dr
South Williamson, KY 41503
Phone (606) 237-1700
214 Hospital Rd
Whitesburg, KY 41858
Phone (606) 633-3631
8195 Custer Rd
Ste 110
Frisco, TX 75035
Phone (469) 830-8835
8195 Custer Rd
Frisco, TX 75035
Phone (940) 241-1215
230 O Connor Ridge Blvd
#110
Irving, TX 75038
230 O Connor Ridge Blvd
Ste 110
Irving, TX 75038
27045 E University Dr
Ste 1C
Little Elm, TX 76227
Phone (214) 597-9905
1630 W Prosper Trl
Ste 430
Prosper, TX 75078
Interoperability endpoints
- vellaiappansomasundaram@arh.medalliesdirect.net
Organizations & group practices 7
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.
-
- Clinical Pathology/Laboratory Medicine Physician
- Whitesburg, KY
- NPI 1417045998
Single Specialty
-
- Emergency Medicine Physician
- South Williamson, KY
- NPI 1740492644
Single Specialty
-
- Anatomic Pathology & Clinical Pathology Physician
- Hazard, KY
- NPI 1780728881
Single Specialty
-
- Multi-Specialty Clinic/Center
- Irving, TX
- NPI 1740084292
Internal Medicine
-
- General Acute Care Hospital
- South Williamson, KY
- NPI 1649270257
Single Specialty
-
- Emergency Medicine Physician
- Lexington, KY
- NPI 1891737185
Single Specialty
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- South Williamson, KY
- NPI 1649270257
-
- General Acute Care Hospital
- Pikeville, KY
- NPI 1285621623
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1147392000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779062400000",
"number": "1891745386",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "230 O CONNOR RIDGE BLVD STE 110",
"city": "IRVING",
"state": "TX",
"postal_code": "750386513",
"telephone_number": "214-666-6259"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8195 CUSTER RD STE 110",
"city": "FRISCO",
"state": "TX",
"postal_code": "750353195",
"telephone_number": "214-666-6259"
}
],
"practiceLocations": [
{
"address_1": "1630 W Prosper Trl Ste 430",
"address_purpose": "LOCATION",
"city": "Prosper",
"state": "TX",
"postal_code": "750783742",
"country_code": "US",
"telephone_number": "214-666-6259",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SOMASUNDARAM",
"first_name": "VELLAIAPPAN",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-05-12",
"last_updated": "2026-05-18",
"certification_date": "2026-05-18",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "KY",
"license": "35436",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "KY",
"license": "35436",
"primary": true
},
{
"code": "207R00000X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine",
"state": "TX",
"license": "T9601",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "T9601",
"state": "TX"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICARE",
"identifier": "S0413253",
"state": "WV"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "64013253",
"state": "KY"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDICAID",
"identifier": "6000592001",
"state": "WV"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Frisco, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 18, 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.