Clinicians affiliated with Physicians Referral Service
2,765 clinicians on file with this group · most practice in Houston-Pasadena-The Woodlands, TX · PAC ID 7911801410
2,327 clinicians affiliated with Physicians Referral Service are in the 2024 Medicare Part B data, 1,288 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.
Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report
Affiliated clinicians by specialty, 2024
All specialties · Nurse Practitioner (538) · Physician Assistant (342) · Diagnostic Radiology (160) · Internal Medicine (124) · Certified Registered Nurse Anesthetist (CRNA) (120) · Pathology (120) · Medical Oncology (95) · Anesthesiology (94) · Radiation Oncology (89) · Hematology-Oncology (78) · General Surgery (35) · Emergency Medicine (32) · Surgical Oncology (30) · Neurology (26) · Plastic and Reconstructive Surgery (26) · Interventional Radiology (25) · Gastroenterology (24) · Hospice and Palliative Care (23) · Otolaryngology (23) · Dermatology (21) · Urology (20) · Infectious Disease (19) · Endocrinology (18) · Hematology (18) · Gynecological Oncology (17) · Cardiology (16) · Hematopoietic Cell Transplantation and Cellular Therapy (15) · Neurosurgery (15) · Psychologist, Clinical (13) · Critical Care (Intensivists) (12) · Pulmonary Disease (12) · Hospitalist (11) · Nuclear Medicine (11) · Anesthesiology Assistant (10) · Physical Medicine and Rehabilitation (9) · Certified Clinical Nurse Specialist (8) · Nephrology (8) · Thoracic Surgery (8) · Ophthalmology (7) · Oral Surgery (Dentist only) (7) · Orthopedic Surgery (7) · Obstetrics & Gynecology (6) · Pain Management (6) · Psychiatry (5) · Rheumatology (5) · Colorectal Surgery (Proctology) (4) · Family Practice (4) · Vascular Surgery (4) · Clinical Cardiac Electrophysiology (1) · General Practice (1) · Geriatric Medicine (1) · Geriatric Psychiatry (1) · Licensed Clinical Social Worker (1) · Medical Genetics and Genomics (1) · Pediatric Medicine (1)
Specialty links go to the specialty in Houston-Pasadena-The Woodlands, TX.
Clinicians affiliated with Physicians Referral Service, 2024
Alphabetical by last name; 1,401–1,500 of 2,327.
| Name | Specialty | City |
|---|---|---|
| Hong T Nguyen, PA | Physician Assistant | Houston, TX |
| Hong T Nguyen, APRN, MSN, NP-C | Nurse Practitioner | Houston, TX |
| Jason H Nguyen, PA | Nurse Practitioner | Houston, TX |
| John N Nguyen, APRN | Nurse Practitioner | Houston, TX |
| Khanh T Nguyen, MD | Hospitalist | Houston, TX |
| Linh T Nguyen, M.D. | Anesthesiology | Houston, TX |
| Lynn V Nguyen, PA-C | Physician Assistant | Houston, TX |
| Nga Nguyen | Physician Assistant | Houston, TX |
| Nga N Nguyen, APRN-CNP | Nurse Practitioner | Houston, TX |
| Nghi C Nguyen, MD, PHD | Diagnostic Radiology | Houston, TX |
| Nina Nguyen, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Quynh - Nhu Nguyen, MD | Radiation Oncology | Houston, TX |
| Son V Nguyen, MD | Internal Medicine | Houston, TX |
| Thien-Phuong Nguyen, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Thuy Nguyen, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Thuy T Nguyen, PA | Physician Assistant | Houston, TX |
| Tracy T Nguyen, APRN | Nurse Practitioner | Houston, TX |
| Trung D Nguyen, APRN | Nurse Practitioner | Houston, TX |
| Vincent Nguyen, PA | Physician Assistant | Fulshear, TX |
| Vinh Q Nguyen, M.D., M.B.A. | Family Practice | Houston, TX |
| Arlene M Nguyen-Paningbatan, APRN | Nurse Practitioner | Houston, TX |
| Nancy N Nguyen-Vu, DNP, APRN, FNP-BC | Nurse Practitioner | Houston, TX |
| Emily S Nia, M.D. | Diagnostic Radiology | Houston, TX |
| Maria Luzalie C Niangar, RN, FNP, NP-C | Nurse Practitioner | Houston, TX |
| Diana A Nichols, NP | Nurse Practitioner | Houston, TX |
| Talula A Nicholson, NP | Nurse Practitioner | Houston, TX |
| Yago L Nieto, M.D. | Hematopoietic Cell Transplantation and Cellular Therapy | Houston, TX |
| Tilu A Ninan, NP | Nurse Practitioner | Houston, TX |
| Matthew S Ning, MD, MPH | Radiation Oncology | Houston, TX |
| Sigismund S Njogopa, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Daniel Nobrega Da Costa, MD | Diagnostic Radiology | Houston, TX |
| Kyle Noll, PHD | Psychologist, Clinical | Houston, TX |
| Lisa Norman, PMHNP | Nurse Practitioner | Houston, TX |
| Peter H Norman, M.D. | Anesthesiology | Houston, TX |
| Robert Y North, MD | Neurosurgery | Houston, TX |
| Sonal S Noticewala, MD | Radiation Oncology | Houston, TX |
| Kent Nouri, M.D. | Pain Management | Houston, TX |
| Kelli L Nugent, PA-C | Physician Assistant | Houston, TX |
| Jorge L Nunez, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Chiamaka N Nwachukwu, APRN | Nurse Practitioner | Houston, TX |
| Ngozi C Nweze, M.D. | Emergency Medicine | Germantown, MD |
| Adaeze Nwosu- Iheme, MD | Hematology-Oncology | Houston, TX |
| Chijioke C Nze, MD, MPH | Internal Medicine | Houston, TX |
| Jennifer Obodoechina, FNP | Nurse Practitioner | Houston, TX |
| Barbara J O'Brien, MD | Neurology | Houston, TX |
| Orhue Odaro | Internal Medicine | Houston, TX |
| Bruno C Odisio, M.D. | Interventional Radiology | Houston, TX |
| Brittney O'Grady, PA-C | Physician Assistant | Houston, TX |
| Adenike N Ogunleye, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Jeong H Oh, M.D. | Internal Medicine | Houston, TX |
| Maro N Ohanian, DO | Hematology-Oncology | Houston, TX |
| Abolanle K Ojelade, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Chi Y Ok, M.D. | Pathology | Worcester, MA |
| Oluchi Oke, M.D. | Hematology-Oncology | Houston, TX |
| Pablo C Okhuysen, M.D. | Infectious Disease | Houston, TX |
| Ifeoma P Okoye, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Galveston, TX |
| Frances C Okpaluba, NP | Nurse Practitioner | Houston, TX |
| Kodili C Okpaluba | Nurse Practitioner | Houston, TX |
| Sikiratu L Olawunmi, FNP | Nurse Practitioner | Houston, TX |
| Jonathon B Olenczak, MD | Plastic and Reconstructive Surgery | Houston, TX |
| Jodi-Ann M Oliver, MD | Anesthesiology | Houston, TX |
| Amanda L Olson, MD | Hematopoietic Cell Transplantation and Cellular Therapy | Houston, TX |
| Kaitlin Olson, FNP-C | Nurse Practitioner | Houston, TX |
| Erika O'Neal, AGACNP-BC | Nurse Practitioner | Houston, TX |
| Hasana O'Neal, PA-C | Physician Assistant | Houston, TX |
| Jane A Onufer, M.D. | Diagnostic Radiology | Houston, TX |
| Thein H Oo, M.D. | Hematology-Oncology | Houston, TX |
| Roney M Oommen | Nurse Practitioner | Houston, TX |
| Betul Oran, M.D. | Hematopoietic Cell Transplantation and Cellular Therapy | Houston, TX |
| Michael S O'Reilly, M.D. | Radiation Oncology | Houston, TX |
| Robert Z Orlowski, MD | Medical Oncology | Houston, TX |
| Jacob W Ormsby, M.D., M.B.A. | Diagnostic Radiology | Houston, TX |
| Veronica R Ortega, APRN, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Houston, TX |
| Cesiah Ortiz, NP | Nurse Practitioner | Houston, TX |
| Marjorie R Ortiz, AGNP | Nurse Practitioner | Houston, TX |
| Jessica A Osburn, NP | Nurse Practitioner | Houston, TX |
| David E Ost, M.D. | Pulmonary Disease | New York, NY |
| Uzondu C Osuagwu, M.D. | Pain Management | Houston, TX |
| Michael Ott, M.D. | Emergency Medicine | Houston, TX |
| Sara M Otto, NP | Nurse Practitioner | Houston, TX |
| Adegbenga O Otun, DDS | Oral Surgery (Dentist only) | Houston, TX |
| Michael J Overman, M.D. | Medical Oncology | Houston, TX |
| Gavin G Ovsak, MD | Anesthesiology | Houston, TX |
| Karla Ow, APRN | Nurse Practitioner | Houston, TX |
| Jennifer A Owens, MS, APRN, FNP-C | Nurse Practitioner | Houston, TX |
| Adebukola Owolabi, M.D | Anesthesiology | Houston, TX |
| Pascal O Owusu-Agyemang, MD | Anesthesiology | Houston, TX |
| Gloria Oyekanmi | Nurse Practitioner | Galveston, TX |
| Bena E Ozcelik, PA-C | Physician Assistant | Houston, TX |
| Omar Pacha, M.D. | Dermatology | Houston, TX |
| Hunter Paddock, PA | Physician Assistant | Houston, TX |
| Lini J Paily, FNP-C | Nurse Practitioner | Houston, TX |
| Linda M Pak, M.D. | General Surgery | Houston, TX |
| Chandni Pal, PA-C | Physician Assistant | Houston, TX |
| Punit Pala, PA-C | Physician Assistant | Houston, TX |
| Cristen M Palacio, PA-C | Physician Assistant | Houston, TX |
| Diana M Palacio Uran, M.D. | Diagnostic Radiology | Galveston, TX |
| Nicolas Palaskas, MD | Cardiology | Houston, TX |
| Lauren E Palmer, PA-C | Physician Assistant | Houston, TX |
| Lindsey D Palmer, FNP-BC | Nurse Practitioner | Houston, TX |
Practice locations
Listed practice locations in Texas.
Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.
Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations