In This Section Littleton Dermatology Team Nava C. Greenfield, MD Dermatology Locations ConcordLebanonLittleton Charles J. Hammer, MD Dermatology Locations Littleton Dermatology Dermatology Teams Treatments and Services Research and Clinical Trials For Health Care Professionals Appointments and Referrals Contact Us Concord, NH Phone: (603) 226-6119Fax: (603) 229-5119 Keene, NH Phone: (603) 354-6571Fax: (603) 355-8260 Lebanon, NH (Heater Road) Phone: (603) 650-3100Fax: (603) 650-3174 Littleton, NH Phone: (603) 259-7706Fax: (603) 259-7685 Manchester, NH Phone: (603) 695-2540Fax: (603) 727-7836 Nashua, NH Phone: (603) 577-4260Fax: (603) 577-4134