Despite most people's lack of familiarity with it, there is a bunch of research on cervicogenic dizziness CD. There is, however, more research on why it occurs than how to treat it.
Cervicogenic dizziness was first reported in 1955 by Ryan and Cope under the term ‘cervical vertigo.’ Experimentally induced cervicogenic dizziness was later elicited via anesthetic injection in the necks of normal subjects (de Jong 1977), further proving the neck to be one of the possible sources of dizziness. More specifically, mechanoreceptors of the neck have been implicated as a contributing cause of disequilibrium (Wyke 1979). It has also been shown that proprioceptive input originating in the neck helps in coordination of the eyes and head and also plays a role in spatial awareness (Brandt and Bronstein 2001). This is of particular importance as it helps explain the link between peripheral somatosensory structures and the perception of equilibrium.
It is known that whiplash (Wrisley 2000, Endo et al. 2006), cervicalspondylosis (Reid and Rivett 2008), hypomobility (Reid and Rivett 2008), hypermobility (Malmström et al.2007), and poor dynamic and postural control (Heikkilä and Wenngren 1998, Malmström 2007) can all contribute to CD. Impairment based musculoskeletal treatment (Malmström 2007), combined manual treatment, exercise, modalities, and medication (Bracher et al. 2000), and SNAGS (Reid and Rivett 2008) have all been shown to successfully treat CD.
Here are some of the better studies encase you are interested.
Reid SA, Rivett DA. Manual therapy treatment for cervicogenic dizziness: a systemic review. Manual Therapy. 2005;10:4-13.
Malmström EM, Karlberg M, Melander A, Magnusson M, Moritz U. Cervicogenic dizziness – musculoskeletal findings before and after treatment and long-term outcome. Disability and Rehabilitation. 2007;29:1193-1205.
Borg-Stein J, Rauch SD, Krabak B. Evaluation and management of cervicogenic dizziness. Critical reviews in physical and rehabilitation medicine. 2001;13:255-263.
Wrisley DM, Sparto PJ, Whitney SL, Furman JM. Cervicogenic Dizziness: A Review of Diagnosis and Treatment. Journal of Orthopaedic & Sports Physical Therapy. 2000;30:755-766.
Reid SA, Rivett DA, Katekar MG, Callister R. Sustained natural apophyseal glides (SNAGs) are an effective treatment for cervicogenic dizziness. Manual Therapy. 2008;13:357-366.
Bracher ES, Almeida CI, Almeida RR, Duprat AC, Bracher CB. A combined approach for the treatment of cervical vertigo. Journal of Manipulative and Physiological Therapeutics. 2000;23:96-100.
Revel M, Andre-Deshays C, Minguet M. Cervicocephalic Kinesthetic Sensibility in Patients with Cervical Pain. Archives of Physical Medicine and Rehabilitation. 1991;72:288-291.
Revel M, Minguet M, Gergoy P, Vaillant J, Manuel JL. Changes in Cervicocephalic Kinesthesia After a Proprioceptive Rehabilitation Program in Patients With Neck Pain: A Randomized Controlled Study. Archives of Physical Medicine and Rehabilitation. 1994;75:895-899.