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Edit this profileAt a glance
- 1173 N Dixie Dr, Suite 101, San Dimas, CA 91773
About Dr. Koh
Joshua K. Koh, M.D. practices psychiatry in San Dimas, CA. Joshua is a 1985 graduate of Southwest School of Medicine and Hospital. Medicare claims data shows Joshua provided 4,437 services to 1,687 patients. The services billed most often include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more, and subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes. The provider's National Provider Identifier (NPI) is 1871609271.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (909) 599-4422
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1173 N DIXIE DR SUITE 101
San Dimas, CA 91773
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
Cognitive and adjustment
- Delirium
- Dementia with behavioral symptoms
- Prolonged grief disorder
Eating, sleep, and somatic
- Binge-eating disorder
- Bulimia nervosa
- Illness anxiety disorder
Geriatric care
- Agitation in Dementia
Mental Health
- Bipolar Depression
Neurodevelopmental and behavioral
- Intellectual disability
- Autism
- Oppositional defiant disorder
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Eating Disorders
Mood & Depression
Personality and dissociative
- Borderline personality disorder
- Dissociative disorders
- Narcissistic personality disorder
Sleep & Wakefulness
Procedures & services
Advanced treatment
- Esketamine treatment
Assessment
- Cognitive and memory screening
- Suicide and safety risk assessment
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Addiction care
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
Sleep Medicine
Specialized care
- Light Therapy
Therapy
Therapy and care
- Family therapy
- Group psychotherapy
- Supportive psychotherapy
Procedures Most Often Billed to Medicare
4,437 services · 1,687 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
52 | More often than most peers in Psychiatry |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
3,560 | More than most peers in Psychiatry |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
631 | More than most peers in Psychiatry |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | Office visit | 99307 |
129 | As often as other 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 |
51 | Less often than most peers in Psychiatry |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
14 | 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.
Related specialists at this location 2
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 — 12 related providers in 3 groups
Trained at Southwest School of Medicine and Hospital 3
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Southwest School of Medicine and Hospital 1
Providers who graduated from the same medical school in the same year.
Also performs Psychiatric diagnostic evaluation with medical services 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Joshua K. Koh's specialty?
Joshua K. Koh is a psychiatrist in San Dimas, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where can I find Joshua K. Koh?
Joshua K. Koh is listed at 1173 N Dixie Dr Suite 101, San Dimas, CA 91773. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Joshua K. Koh?
The number on file is (909) 599-4422. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Joshua K. Koh?
Joshua K. Koh's National Provider Identifier is 1871609271. 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 Joshua K. Koh's education?
Joshua K. Koh attended Southwest School of Medicine and Hospital, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Joshua K. Koh have?
Joshua K. Koh has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Joshua K. Koh known for?
According to Medicare billing data, Joshua K. Koh provides treatments such as psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Joshua K. Koh's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Joshua K. Koh. If this is you, claiming it is free.
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