Provider Profile
Andrew Hahn, PsyD
Unclaimed ProfileAbout Dr. Hahn
Listed in the NPI registry as a psychologist, Andrew Hahn, PsyD practices in Waltham, MA. Medicare claims data shows Andrew provided 483 services to 39 patients. The services billed most often include psychotherapy, 1 hour.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (781) 274-6633
- Email not available
Practice Locations
115 WORCESTER LN
Waltham, MA 02451
Concerns and Conditions Addressed
Within Psychology (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- ADHD
- Anxiety
- Depression
- Grief
- OCD
- Relationship issues
- Trauma
Abuse and relationships
- Gaslighting and manipulation
Addiction
- Alcohol use disorder
- Drug addiction
- Gambling Addiction
- Screen Addiction
- Shopping Addiction
Anxiety & Phobias
- Illness anxiety disorder
- Panic disorder
- Social anxiety disorder
- Specific phobias
Anxiety and phobias
- Agoraphobia
Behavioral & Emotional
- Anger issues
- Dissociative disorders
- Hoarding
- Self-harm
- Skin picking and hair pulling
Child & Adolescent
- Child behavioral problems
Child and teen issues
- School refusal
- Teen depression
Eating & Body Image
- Body image issues
- Eating disorders
Health Psychology
- Chronic Pain Coping
Identity and life stages
- Gender dysphoria
- Midlife Crisis
Interpersonal & Abuse
- Divorce adjustment
- Emotional abuse recovery
- Sex Problems
Life and social issues
- Caregiver stress for aging parents
- Loneliness and Social Isolation
Mindset and personality
- Perfectionism
Mood and emotions
- Overthinking and Rumination
- Seasonal affective disorder
Mood Disorders
- Bipolar disorder
- Postpartum Mood Issues
Neurodevelopmental
- Autism
- Reading and Spelling Difficulties
Personality Disorders
- Borderline personality disorder
Relationships
- People Pleasing and Codependency
Self-Esteem & Identity
- Imposter syndrome
- Low self-esteem
Sleep
- Insomnia
Sleep issues
- Chronic Nightmares
Stress & Lifestyle
- Adjustment disorder
- Burnout
- Caregiver burnout
- Chronic stress
Thought disorders
- Schizoaffective disorder
Trauma and abuse
- Chronic Illness Coping
- Religious trauma
Work and career
- Workplace bullying and harassment
Procedures & services
Most searched procedures
- Cognitive behavioral therapy
- Couples counseling
- EMDR
- Family therapy
- Psychological testing
- Therapy
Addiction support
- Relapse prevention planning
Alternative formats
- Walk and Talk Therapy
Behavioral Programs
- Anger management
- Executive Function Coaching
- Group psychotherapy
- Habit reversal training
Behavioral therapies
- Behavioral activation
Brain-based therapies
- Neurofeedback
Care delivery
- Online counseling
Child & Adolescent
- Parent coaching
- Play therapy
Evaluations & Assessments
- Autism Assessment
- Bariatric Surgery Evaluation
- Cognitive and memory testing
- Emotional Support Animal Evaluation
- Spinal Cord Stimulator Psychological Clearance
Evaluations and testing
- Adoption Psychological Evaluation
- Gender-affirming surgery evaluation
- Immigration Psychological Evaluation
- Neuropsychological Testing
Expressive therapies
- Music therapy
Family and parenting
- Parent-child interaction therapy
Mind-body therapies
- Guided Imagery and Visualization
Relationship Counseling
- Premarital counseling
- Sex therapy
Skills training
- Coping Skills Training
- Social skills training
Specialized therapy
- Cognitive processing therapy
- Prolonged exposure therapy
- Schema Therapy
Specialized Treatments
- Biofeedback
- Crisis intervention
- Hypnotherapy
- Ketamine-assisted counseling
- Mindfulness-based stress reduction
- Sleep counseling
Talk therapies
- Gestalt therapy
- Interpersonal psychotherapy
- Narrative therapy
Therapy Modalities
- Acceptance and commitment therapy
- Art therapy
- Brainspotting
- Dialectical Behavior Therapy
- Exposure and Response Prevention
- Internal family systems
- Psychodynamic psychotherapy
- Solution-focused brief therapy
- Somatic experiencing
Procedures Most Often Billed to Medicare
483 services · 39 patients · 1 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 1 hour | Treatment | 90837 |
483 | More often than most peers in Psychologist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other psychologists in Waltham 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1985 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy, 1 hour 8
Providers in MA who bill this service to Medicare most often.
Common questions
What is Andrew Hahn's specialty?
Andrew Hahn is a psychologist in Waltham, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Andrew Hahn?
Andrew Hahn is listed at 115 Worcester Ln, Waltham, MA 02451. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Andrew Hahn?
The number on file is (781) 274-6633. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Andrew Hahn?
Andrew Hahn's National Provider Identifier is 1679620389. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Andrew Hahn's education?
Andrew Hahn attended Other, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Andrew Hahn have?
Andrew Hahn has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Andrew Hahn known for?
According to Medicare billing data, Andrew Hahn provides treatments such as psychotherapy, 1 hour. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Andrew Hahn's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Andrew Hahn. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.