Clinicians affiliated with Vituity-California Observation Services PC

82 clinicians on file with this group · most practice in Sacramento-Roseville-Folsom, CA · PAC ID 5991178998

Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

80 clinicians affiliated with Vituity-California Observation Services PC are in the 2024 Medicare Part B data, 55 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 · Emergency Medicine (45) · Physician Assistant (22) · Internal Medicine (5) · Hospitalist (4) · Nurse Practitioner (3) · Family Practice (1)

Specialty links go to the specialty in Sacramento-Roseville-Folsom, CA.

Clinicians affiliated with Vituity-California Observation Services PC, 2024

Alphabetical by last name; 80.

NameSpecialtyCity
Dennis M Baba, RNNurse PractitionerSacramento, CA
Nader W BadriEmergency MedicineRiverside, CA
Megan Barlow-LearyEmergency MedicineSacramento, CA
Cameron Y Barr, MDEmergency MedicineSacramento, CA
Anne Marie Bisson, PAPhysician AssistantDavis, CA
Scott R Borrelli, PA-CPhysician AssistantColton, CA
Anthony R Carlile, MDInternal MedicineRoseville, CA
Matthew L Case, PA-CPhysician AssistantRoseville, CA
Christina M Cheung, MDEmergency MedicineColton, CA
Adam P Dougherty, MPHEmergency MedicineSacramento, CA
Jane DyballEmergency MedicineSacramento, CA
Cathleen Encarnacion, PA-CPhysician AssistantCarmichael, CA
Felicia Farmer, FNP-CNurse PractitionerMunster, IN
Mateusz D Gorecki, DOHospitalistOlympia Fields, IL
Chetan Goud, M.DEmergency MedicineDecatur, GA
Kamara Graham, M.D.Emergency MedicineSaginaw, MI
Britanie A GrandinettePhysician AssistantLanghorne, PA
Jennifer P Griffith, MDEmergency MedicineDallas, TX
Sabrina M Gunion, MDEmergency MedicinePittsburgh, PA
Matthew HartmanPhysician AssistantDanville, CA
Noel Hastings, MDEmergency MedicineEmeryville, CA
Linda L Herman, M.D.Emergency MedicineChicago, IL
Juan M Hernandez, M.D.Emergency MedicineClovis, CA
Matthew P HerrickEmergency MedicineHouston, TX
Dawn C Hitchcock, M.DEmergency MedicineRoseville, CA
Arthur R Jey, M.D.Emergency MedicineBowling Green, KY
Janine Johal, PA-C, MPHPhysician AssistantFrench Camp, CA
Michael JohnsonEmergency MedicineVisalia, CA
Samantha M KernsEmergency MedicineSacramento, CA
R. D Kovacik, M.DEmergency MedicineApple Valley, CA
James H Lee, M.D.Emergency MedicineSacramento, CA
Rebecca LeeceEmergency MedicineSacramento, CA
Soumil S Lele, M.D.HospitalistSaint Louis, MO
Anthony LuceroEmergency MedicineTorrance, CA
Katie M Lukasek, MDEmergency MedicineChicago, IL
Manmeet S Maan, MDHospitalistMunster, IN
Christopher J Markus, D.OEmergency MedicineRoseville, CA
David E Massil, M.D.Internal MedicineRoseville, CA
Sheron MathewPhysician AssistantMoreno Valley, CA
Adrienne N Mathis, PAPhysician AssistantBloomington, IN
Wallace B Mckinney, M.D.Emergency MedicineSacramento, CA
Eilya Moghaddam, M.D.HospitalistRoseville, CA
Sarah MolooPhysician AssistantPocatello, ID
Michael S Morrissey, MDEmergency MedicineRoseville, CA
John MoserEmergency MedicineFresno, CA
Maher Musleh, DOInternal MedicineMunster, IN
Dan Nadler, M.D.Emergency MedicineGarden Grove, CA
Andrew NavlytEmergency MedicineSacramento, CA
Anna N Nguyen, M.D.Emergency MedicineBerwyn, IL
Caroline Nguyen, MDEmergency MedicineSacramento, CA
Rachel NordstromEmergency MedicineMilwaukee, WI
Sarah J Peffer, PA-CPhysician AssistantWoodland, CA
Jennifer A Platt, M.D.Internal MedicineMunster, IN
Mark Portman, M.D.Emergency MedicineSacramento, CA
Willeed Rabah, MDEmergency MedicineLoma Linda, CA
Kali RichmondPhysician AssistantFresno, CA
Lance W Rossi, P.A-CPhysician AssistantRoseville, CA
Mahwash Saeed, M.D.Internal MedicineRoseville, CA
Gustavo Salas, PAPhysician AssistantSacramento, CA
Karen L Scarpa, MDEmergency MedicineSacramento, CA
Alexander D Schmalz, MD, MPHEmergency MedicineSacramento, CA
Andrea SconbergPhysician AssistantSacramento, CA
Nicholas S SeldenEmergency MedicineSacramento, CA
Sadia Sheikh, PAPhysician AssistantToledo, OH
Emily R Sheldon, PA-CPhysician AssistantLansing, MI
Maureen I Shuma, MDFamily PracticeSacramento, CA
Nathan R Silvestri, M.D.Emergency MedicineLoma Linda, CA
Brandon R Slockbower, M.D.Emergency MedicineGreenville, NC
Natasha Smith, MDEmergency MedicineRiverdale, GA
Kimberly Sokol, M.D.Emergency MedicineOrange, CA
Marvin Swain, FNP-CNurse PractitionerMunster, IN
Jeffrey M Thomas, P.A.Physician AssistantOakland, CA
Hang Truong, PAPhysician AssistantHayward, CA
Nancy J Vassallo, P.A-CPhysician AssistantRoseville, CA
Smiley VermaPhysician AssistantHouston, TX
Justin B Wagner, M.D.Emergency MedicineFolsom, CA
William M Webster, M.DEmergency MedicineMarysville, CA
David Wolf, P.A.Physician AssistantCarmichael, CA
Matthew G Wostak, DOEmergency MedicineTravis Afb, CA
Zachary R Zuniga, MDEmergency MedicineNew York, NY

Practice locations

Listed practice locations in California, Indiana.

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