Physician Profile
Lauren C. Mercer, MD
Unclaimed ProfileAbout Dr. Mercer
Based in Hamden, CT, Lauren C. Mercer, MD is listed in the NPI registry under psychiatry. Lauren is also listed as specializing in geriatric psychiatry. According to Medicare claims data, Lauren cared for 548 Medicare patients across 1,772 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, psychotherapy with evaluation and management visit, 30 minutes, and psychotherapy, 45 minutes. NPI 1922261874 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (203) 288-0414
- Email not available
Practice Locations
60 WASHINGTON AVE SUITE 203
Hamden, CT 06518
Conditions Commonly Evaluated or Treated
Within Psychiatry 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
- Bipolar disorder
- Depression
- Schizophrenia
- Trauma
Anxiety, trauma, and obsessive-compulsive
- Agoraphobia
- OCD
- Panic disorder
- Social anxiety disorder
- Specific phobias
Mood disorders
- Premenstrual dysphoric disorder
- Seasonal affective disorder
Psychotic disorders
- Schizoaffective disorder
Substance-related and addictive
- Alcohol use disorder
- Opioid use disorder
Addiction & Substance Use
- Drug addiction
- Gambling Addiction
Cognitive and adjustment
- Dementia with behavioral symptoms
- Prolonged grief disorder
Eating Disorders
- Binge eating
- Eating disorders
Eating, sleep, and somatic
- Illness anxiety disorder
Mood & Depression
- Postpartum depression
Neurodevelopmental and behavioral
- Autism
- Oppositional defiant disorder
Personality and dissociative
- Borderline personality disorder
- Dissociative disorders
- Narcissistic personality disorder
Sleep & Wakefulness
- Insomnia and Sleep Problems
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
- Suicide and safety risk assessment
Addiction care
- Addiction counseling
Addiction Medicine
- Alcohol Detox and Withdrawal Management
- Dual Diagnosis Treatment
- Suboxone Treatment and MAT
Assessments
- Adult ADHD Testing
- Autism testing
- Cognitive Assessment
Brain stimulation
- Neurofeedback
- Vagus Nerve Stimulation
Consultations
- Psychiatric Second Opinion
Diagnostics
- Neuropsychological Testing
- Psychiatric Genetic Testing
Inpatient care
- Inpatient Psychiatric Care
Interventional psychiatry
- Spravato Treatment
Psychotherapy
- Anger Management Counseling
- Couples counseling
- EMDR Therapy
- Exposure and Response Prevention
Sleep Medicine
- Sleep counseling
Specialized care
- Light Therapy
Therapy
- Acceptance and commitment therapy
- Dialectical Behavior Therapy
- Somatic experiencing
Therapy and care
- Family therapy
- Group psychotherapy
- Supportive psychotherapy
Procedures Most Often Billed to Medicare
1,772 services · 548 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
624 | More than most peers in Psychiatry |
| Psychotherapy, 45 minutes | Treatment | 90834 |
235 | More often than most peers in Psychiatry |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
672 | More than most peers in Psychiatry |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
130 | As often as other peers in Psychiatry |
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99348 |
38 | Less often than most peers in Psychiatry |
| Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes | Office visit | 99347 |
28 | Less often than most peers in Psychiatry |
| Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes | Office visit | 99344 |
19 | As often as other peers in Psychiatry |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
14 | Less often than most peers in Psychiatry |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
12 | Less often than most peers in Psychiatry |
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.
Other psychiatrists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other psychiatrists in Hamden 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in CT who bill this service to Medicare most often.
Common questions
What is Dr. Mercer's specialty?
Dr. Mercer is a psychiatrist in Hamden, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where can I find Dr. Mercer?
Dr. Mercer is listed at 60 Washington Ave Suite 203, Hamden, CT 06518. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mercer?
The number on file is (203) 288-0414. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Mercer's NPI number?
Dr. Mercer's National Provider Identifier is 1922261874. 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 Dr. Mercer's medical education?
Dr. Mercer attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mercer been practicing?
Dr. Mercer has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mercer known for?
According to Medicare billing data, Dr. Mercer provides treatments such as psychotherapy with evaluation and management visit, 30 minutes and psychotherapy, 45 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mercer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mercer. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.