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Care Team

Executive Team

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Fransicso Hernandez, Jr. M.D.

Chief Executive Officer

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Vladimir Paez, M.D.

Chief of Operations

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Pramod Sharma, M.D.

Chief Medical Officer

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Andy Wu, M.D.

Senior Partner

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​Guido Calderon, M.D.

Senior Partner

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Jaime Diaz, M.D.

Senior Partner

Leadership Team

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Christian Munoz

Director of Operations

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Debbie Farrar

Office Manager

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Heather Hubble

Billing Manager

Back Office Team

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Francis Oñate

Clinical Coordinator 

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Kim Brotherton

Clinical Coordinator 

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Mylen Cuizon

Clinical Coordinator 

Acute Care Team

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Lovin Pappy, M.D

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​Stephen Kamuchecka, M.D.

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​Michael J, Statton, M.D.

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Nancy Lough, ACNP

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​Jennifer Freytag, ACNP

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Jessica Ragan, ACNP

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​Lauren Torbett, PA

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Tiffany Peteete, ACNP

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Jeff Hummel, AGACNP-BC

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Lisa Fields, ACNP-BC

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Bobbi Deras, ACNP-BC

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Claire Stringman, ACNP

Post-Acute Care Team

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Primo A. Mayhua, M.D.

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Diana Smith, FNP-C

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Mara Cruz, FNP-C

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Lucinda Radmann, FNP-C

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Angel Tyler, AGPCNP

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Stefanie Laue, FNP-C

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Tiphani Moore, FNP-C

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Shante Spaulding, FNP-C

© 2026 by Lonestar Extensivists

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