AAC: Associate Addiction Counselor
ABPP: American Board of Professional Psychology Certified  
ACS: Approved Clinical Supervisor
ACSM-HFI: American College of Sports Medicine  Health Fitness Instructor 
ACSW: Academy of Certified Social Workers 
ADTR: Academy of Dance Therapists Registered
AED: Academy for Eating Disorders 
AFAA: Aerobics and Fitness Personal Trainer Certification & Group Exercise Certification 
ANP: Adult Nurse Practitioner
APN: Advanced practice registered nurse
APRN-BC: Advanced Practice Nurse, Board Certified
ARNPP:  Advanced practice registered nurse
ATR, ATR-BC: art therapist
BCBA: Board Certified Behavior Analyst
BCD: Board Certified Diplomat 
BSW: Bachelor’s degree in social work
CAC: Certified Addiction Counselor
CADAC: Certified Alcohol & Drug Abuse Counselor
CADC: Certified Alcohol & Drug Counselor
CAP: Certified Addiction Professional
CARF: Commission on Accreditation of Rehabilitation Facilities
CAS: Certified Addition Specialist
CBT: Cognitive-Behavioral Therapy
CCBT: Certified Cognitive-Behavioral Therapist
CCH: Certified Clinical Hypnotherapist
CCN: Board Certified Clinical Nutritionist
CCSD: Certified Specialist in Sports Dietetics 
CCSW: Certified Clinical Social Worker 
CD: Certified Dietitian
CDE: Certified Diabetes Educator
CDL: Chemical Dependency Licensure 
CDN: A certified dietitian or certified dietitian-nutritionist 
CD-N: Certified Dietitian-Nutritionist 
CDVC: Certified Domestic Violence Counselor
CEAP: Certified Employee Assistance Professional
CEDS: Certified Eating Disorders Specialist (IAEDP)
CEDSN: Certified Eating Disorders Specialist / Nutrition (IAEDP)
CEDT: Certified Eating Disorder Therapist
CFCS: Certified Family and Consumer Scientist
CFT: Certified Fitness Trainer 
CGP: Certified Group Psychotherapist
CGT: Certified Gestalt Therapist
CHES: Certified Health Education Specialist
CHHC: Certified Holistic Health Counselor
CHHP: Certified Holistic Health Practitioner
CHT: Certified Hypnotherapist
CHTP  Certified Healing Touch Practitioner
CMFT: Certified Marriage and Family Therapist
CNC: Certified Nutrition Consultant
CNS: Certified Nutrition Specialist 
CPT: Certified Personal Trainer 
CRAT: Certified Rational Addictions Therapist
CS: Clinical Specialist or Clinical Supervisor
CSCS: Certified Strength and Conditioning Specialist
CSW: Certified Social Worker or Clinical Social Worker 
CTRT: Certified Trauma Resolution Therapist
DAC: Drug and Alcohol Counselor 
DAPA:  Diplomate of the American Psychotherapy Association
DBT: Dialectical Behavior Therapy
DCSW: Doctorate (or Diplomat)  in Clinical Social Work
DMFT: Doctor of Marriage and Family Therapy 
DMin: Doctor of ministry
DO: Doctor of Osteopathic Medicine,  Psychiatrist
DSW: Doctor of Social Work
DTR: Dance/Therapist 
EDA: Eating Disorders Associate (IAEDP)
EdD.: Doctorate of Education
EdS.: Educational Specialist
FAAFP: Fellow American Association of Family Practice
FABMPP: Fellow American Board of Medical Psychotherapists & Psychodiagnosticians 
FADA: Fellow of the American Dietetic Association
FAED: Fellow of the Academy for Eating Disorders
FIPA: Fellow of the International Psychoanalytic Association
FSAM: Fellow Society for Adolescent Medicine
GCFP: Guild Certified Feldenkrais Practitioner 
GCP: Good Clinical Practice or Member of the Guild Complementary Practitioners
HSPP: Health Service Provider in Psychology
IAEDP: The International Association of Eating Disorders Professionals
IAYT: International Association of Yoga Therapists
ICADC: Internationally Certified Alcohol & Drug Counselor
JD: Doctor of Jurisprudence (attorney)
L.Ac.: Licensed Acupuncturist
LAC: Licensed Addiction Counselor or Licensed Associate Counselor
LADC:  Licensed Alcohol and Drug Counselor
LCAT: Licensed Creative Arts Therapist
LCDC: Licensed Chemical Dependency Counselor
LCPC: Licensed Clinical Professional Counselor
LCS: Licensed Clinical Social Worker 
LCSW: Licensed Clinical Social Worker 
LCSW-C: Licensed Certified Social Worker 
LD: Licensed Dietician
LDN: Licensed Dietician/Nutritionist
LGSW: Licensed Graduate Social Worker 
LICSW: Licensed Independent Clinical Social Worker 
LIS: Licensed Independent Social Worker
LLP: Limited Liability Partnership, or Limited License Psychologist, or Licensed Psychological Practitioner
LMA: Licensed Masters Social Work
LMFT: Licensed Marriage and Family Therapist 
LMHC: Licensed mental health counselor
LMSW: Licensed Master Social Worker 
LMSW-ACP: Licensed Master Social Worker-Advanced Clinical Practitioner
LN:  Licensed Nutritionist
LP: Licensed Psychologist or licensed psychoanalyst
LPA: Licensed Psychological Associate
LPC: Licensed Professional Counselor 
LPCC: Licensed Professional Clinical Counselor 
LPCI: Licensed Professional Counselor Intern
LSW: Licensed Social Worker 
LSWA: Licensed Social Work Associate 
MA: Master's degree 
MAHPP: Member of Association of Humanistic Psychology Practitioners
MC: Masters in Counseling
MD: Medical Doctor, usually a psychiatrist, specializing in mental health care. 
MDiv.: Masters level degree in Divinity
MEd.: Masters in Education
MFA: Master of Fine Arts degree , involving music, art, music & art history, etc.
MFCC: Marriage, Family and Child Counselor 
MFT: Marriage and Family Therapist 
MHN: Advanced practice registered nurse
MOE or MOAE: Master in Occupational and Adult Education
MPH: Master of Public Health
MPS: Master of Professional Studies 
MS: Masters of Science
MSEd: Master of Science in Education
MSW: Masters in Social Work 
MT-BC: Music Therapist, Board Certified
NASM-CPT: National Academy of Sports Medicine - Certified Personal Trainer  
NBCCH: National Board for Certified Clinical Hypnotherapists
NCC: Nationally Board Certified Counselor
NCPsyA: Nationally Certified Psychoanalyst
NP: Nurse Practitioner
NPP: Nurse Practitioner in Psychiatry
P/MHNP: Psychiatric/Mental Health Nurse Practitioner
PA: Physician's Assistant or Psychological Assistant  
PAT: Professional Art Therapist or a Provisional Addictions Therapist
PhD.: Doctorate of Philosophy 
PLLC:  Legal structure for professional practice 
PMHNP: Psychiatric Mental Health Nurse Practitioner 
PNP: Pediatric Nurse Practitioner
PsyD: Doctor of Psychology
QCSW: Qualified Clinical Social Worker 
RBT: Rational Behavior Therapist 
RC: Registered Counselor
RCC: Registered Clinical Counselor
RD: Registered Dietician
REAT: Registered Expressive Arts Therapist
RYT: Registered Yoga Teacher  
SEP: Somatic Experiencing Practitioner 
TAS: Tobacco Addiction Specialist (NAADAC)