- Clinicians
- Andrew Patel, M.D., and Gabriel Warner, LCSW
- Evaluation
- 5–10 minute phone or video call
- Letter details
- Name, license type, license number, issuing state, date
- Cost to book
- Free; $149 only if a letter is approved
Who you may talk with
Our team is small on purpose. Two licensed clinicians handle the clinical side of usaPsdletter.com: Andrew Patel, M.D., a physician, and Gabriel Warner, LCSW, a licensed clinical social worker. Each profile below explains what that clinician does for you and what their credential means.
We keep these profiles to verifiable facts. You will not find invented biographies, awards or testimonials here. What matters for your letter is that the person signing it is licensed, that the license can be checked, and that the decision is based on an actual conversation with you.
Clinician roles
Gabriel Warner, LCSW, carries out the mental health evaluations behind PSD letter requests and issues letters when they are appropriate. Andrew Patel, M.D., reviews evaluations and signs letters when the clinical findings support one. Dr. Patel is also the clinical reviewer for the educational content on this website.
Either way, a letter is never automatic. If the clinician does not find that a letter is appropriate, none is issued and you are not charged.
- Book online for free and confirm your state
- Talk with a licensed clinician in a 5–10 minute phone or video evaluation
- If appropriate, receive a signed PDF letter
- Pay $149 for 1–2 dogs or $229 for 3 dogs only if a letter is approved
What every PSD letter shows
Each letter lists the details a housing provider or other reader needs to confirm that a licensed professional wrote it. Licensing boards in each state regulate physicians and clinical social workers, so the license number and issuing state on the letter point to a public record.
If you ever receive a document that leaves out these details, treat it with caution. A real clinician's letter can always be traced back to a real license.
- The clinician's full name
- The license type (for example, M.D. or LCSW)
- The license number
- The state that issued the license
- The date the letter was signed
What a clinician's letter can do
A PSD letter is useful documentation when you ask a housing provider for a reasonable accommodation under the Fair Housing Act. The 2004 HUD and DOJ joint statement on reasonable accommodations allows housing providers to ask for reliable documentation of a disability and the disability-related need for an animal when those things are not obvious.
A letter is not needed for public places and does not give your dog public access. Under the ADA, businesses cannot require documentation for a service dog; your dog's training and behavior are what matter. For flights, airlines may require the U.S. Department of Transportation's Service Animal Air Transportation Form, which you complete yourself. A letter can accompany that form but does not replace it.
State licensing rules
Clinicians must follow the licensing rules of the state where you are located. That is why the booking step confirms your state before anything else. If we cannot lawfully evaluate you, we will tell you rather than offer a letter that would not hold up.

