Active NPI
Magella Medical Associates Billing, Inc.
Doing business as Magella Medical Associates
- Neonatal-Perinatal Medicine Physician
- Round Rock, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Neonatal-Perinatal Medicine Physician
- Legal business name
- MAGELLA MEDICAL ASSOCIATES BILLING, INC.
- Doing business as
- Magella Medical Associates
- Practice address
- 2400 Round Rock Ave
Round Rock, TX 78681-4004 - Phone
- (512) 341-1000
- NPI assigned
- Jul 16, 2006
- Last updated
- Aug 25, 2026
- Organization subpart
- Yes
- Parent organization
- PEDIATRIX MEDICAL SERVICES
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Michael D Dwyer
- Title
- Assistant Secretary
- Phone
- (800) 243-3839
Specialties & licenses 7
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Maternal & Fetal Medicine Physician | 207VM0101X | |||
| Neonatal-Perinatal Medicine Physician | 2080N0001X | Primary | ||
| Pediatric Neurodevelopmental Disabilities Physician | 2080P0008X | |||
| Pediatric Cardiology Physician | 2080P0202X | |||
| Neurocritical Care Physician | 2084A2900X | |||
| Diagnostic Radiology Physician | 2085R0202X | |||
| Neonatal Nurse Practitioner | 363LN0000X |
Addresses
Primary practice location
2400 Round Rock Ave
Round Rock, TX 78681-4004
Mailing address
1301 Concord Ter
Sunrise, FL 33323-2843
Phone (800) 243-3829
Other practice location 1
3001 E President George Bush Hwy
Suite 250
Richardson, TX 75082-3542
Phone (972) 437-5099 ext. 227
Other names 1
- Magella Medical Associates
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
Enrollment records 1
National Provider Directory
National Provider Directory- Part of
- Pediatrix Medical Services Inc
Locations (25 of 119)
2497 S Roane St
Ste 100
Harriman, TN 37748
2261 Brookhollow Plaza Dr
Ste 209
Arlington, TX 76006
Phone (972) 258-7978
10401 Anderson Mill Rd
Austin, TX 78750
Phone (512) 250-5571
10401 Anderson Mill Rd
Ste 101B
Austin, TX 78750
1110 E 32nd St
Bldg 2
Austin, TX 78722
1111 W 34th St
Ste 300
Austin, TX 78705
Phone (512) 454-6753
3000 Ih 35 N
Ste 770
Austin, TX 78681
Phone (512) 482-8880
3000 N Interstate 35
Ste 770
Austin, TX 78705
Phone (512) 482-8880
3305 Northland Dr
Austin, TX 78731
4100 Duval Rd
Ste 201
Austin, TX 78759
Phone (512) 250-1005
4314 Medical Pkwy
Austin, TX 78756
4314 Medical Pkwy
Ste 200
Austin, TX 78756
4910 Mueller Blvd
Fl 1
Austin, TX 78723
5301 Davis Ln
Austin, TX 78749
6811 Austin Center Blvd
Ste 400
Austin, TX 78731
Phone (512) 628-1840
7940 Shoal Creek Blvd
Ste 100
Austin, TX 78757
Phone (512) 494-4000
801 W 34th St
Ste 100
Austin, TX 78705
Phone (512) 459-1131
9010 N Lake Creek Pkwy
Ste 205
Austin, TX 78717
301 Highway 71 W
Ste 111
Bastrop, TX 78602
Phone (512) 304-0318
1301 Medical Pkwy
Ste 320
Cedar Park, TX 78613
Phone (512) 260-7867
1401 Medical Pkwy
Ste B
Cedar Park, TX 78613
24510 Northwest Fwy
Ste 650
Cypress, TX 77429
Phone (346) 616-2777
11615 Forest Central Dr
Ste 100
Dallas, TX 75243
12200 Park Central Dr
Ste 400
Dallas, TX 75251
Phone (972) 991-5437
12655 N Central Expy
Dallas, TX 75243
Phone (214) 342-0425
Practitioners & affiliated clinicians
Practitioners 670
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Pediatric Surgery Physician
- Dallas, TX
- NPI 1982997011
-
- Neonatal-Perinatal Medicine Physician
- Flower Mound, TX
- NPI 1306004684
-
- Plastic and Reconstructive Surgery Physician
- San Antonio, TX
- NPI 1982656930
-
- Maternal & Fetal Medicine Physician
- McKinney, TX
- NPI 1821078692
-
- Maternal & Fetal Medicine Physician
- San Antonio, TX
- NPI 1407823735
-
- Physician Assistant
- Dallas, TX
- NPI 1245008887
-
- Neonatal-Perinatal Medicine Physician
- Austin, TX
- NPI 1619014727
-
- Neonatal-Perinatal Medicine Physician
- Webster, TX
- NPI 1710934625
-
- Pediatric Otolaryngology Physician
- Houston, TX
- NPI 1548255805
-
- Pediatric Nurse Practitioner
- Austin, TX
- NPI 1992227847
-
- Pediatric Nurse Practitioner
- Austin, TX
- NPI 1073213906
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153008000000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1787616000000",
"number": "1083631071",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1301 CONCORD TER",
"city": "SUNRISE",
"state": "FL",
"postal_code": "333232843",
"telephone_number": "800-243-3829",
"fax_number": "214-343-2814"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2400 ROUND ROCK AVE",
"city": "ROUND ROCK",
"state": "TX",
"postal_code": "786814004",
"telephone_number": "512-341-1000"
}
],
"practiceLocations": [
{
"address_1": "3001 E President George Bush Hwy",
"address_2": "Suite 250",
"address_purpose": "LOCATION",
"city": "Richardson",
"state": "TX",
"postal_code": "750823542",
"country_code": "US",
"telephone_number": "972-437-5099 x227",
"fax_number": "214-343-2814",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"organization_name": "MAGELLA MEDICAL ASSOCIATES BILLING, INC.",
"organizational_subpart": "YES",
"parent_organization_legal_business_name": "PEDIATRIX MEDICAL SERVICES",
"enumeration_date": "2006-07-16",
"last_updated": "2026-08-25",
"certification_date": "2026-08-25",
"status": "A",
"authorized_official_last_name": "DWYER",
"authorized_official_first_name": "MICHAEL",
"authorized_official_middle_name": "D",
"authorized_official_title_or_position": "ASSISTANT SECRETARY",
"authorized_official_telephone_number": "800-243-3839",
"authorized_official_name_prefix": "Dr."
},
"taxonomies": [
{
"code": "207VM0101X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
"state": null,
"license": null,
"primary": false
},
{
"code": "2080N0001X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Pediatrics, Neonatal-Perinatal Medicine",
"state": null,
"license": null,
"primary": true
},
{
"code": "2080P0008X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Pediatrics, Neurodevelopmental Disabilities",
"state": null,
"license": null,
"primary": false
},
{
"code": "2080P0202X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Pediatrics, Pediatric Cardiology",
"state": null,
"license": null,
"primary": false
},
{
"code": "2084A2900X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Psychiatry & Neurology, Neurocritical Care",
"state": null,
"license": null,
"primary": false
},
{
"code": "2085R0202X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Radiology, Diagnostic Radiology",
"state": null,
"license": null,
"primary": false
},
{
"code": "363LN0000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Nurse Practitioner, Neonatal",
"state": null,
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"organization_name": "Magella Medical Associates",
"code": "3",
"type": "Doing Business As"
},
{
"organization_name": "Magella Medical Associates",
"code": "3",
"type": "Doing Business As"
}
]
}
Other providers in Round Rock, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 25, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.