Margaretta Byrne, PMHNP

Personalized Outpatient Mental Health Services

Margaretta Byrne, PMHNP

Hours of Operation:

Monday-Sunday: 24 / 7

Accepting New Patients: Get Started Today

Letti is a Psychiatric-Mental Health Nurse Practitioner at Guardian Recovery who combines extensive nursing expertise with specialized mental health training. After earning her BS and MS in Nursing from Simmons College and completing Family Nurse Practitioner training in 2012, she obtained her postgraduate certification in Psychiatric-Mental Health from the University of Southern Maine in 2020. With additional background in public health, epidemiology, and biostatistics, Letti brings a comprehensive approach to treating substance use and mental health disorders. She is dedicated to patient-centered care, collaborating with individuals to develop personalized treatment plans that align personal preferences with evidence-based practices. Letti is passionate about creating pathways to recovery that honor each person’s unique journey toward hope and healing.

Give us a call

Admissions

(888) 280-2585

Office Hours:

Monday – Friday, 9AM-5PM

IOP Office Hours:

Monday – Friday, 9AM-5PM or 1pm – 4pm

After hours appointments are
limited and by appointment only.

Our Location

Portland, ME
100 Gannett Dr.
Suite A
South Portland, ME 04106
207-742-8558

Our Fax Number

Medical Group Fax: (207) 910-6577
IOP / PHP Fax: (207) 747-4067

Send Us An Email

[email protected]

Contact Us Today

"*" indicates required fields

How can we help?*

General Inquiry Form

Name

First Last

Email:

Phone:

Subject:

Message:

Psychiatry | Medication Management Inquiry Form

Name

First Last

Date Of Birth:

MM slash DD slash YYYY

Phone:

Email:

Address

Street Address City State ZIP Code

Do you have Insurance?

Yes

Primary Insurance:

Primary Insurance ID:*

Do you have Secondary Insurance?

Yes

Secondary Insurance:

Secondary Insurance ID:*

What medications are you currently prescribed:*

Do you currently have any of the following providers?

A Primary Care Doctor?

Yes

A Psychiatrist?

Yes

A Therapist?

Yes

Primary Care Doctor (Full Name):

Doctor Phone Number:

If Yes and seeking therapy services with Bishop Health, why are you leaving your current provider?

Current Psychiatrist (Full Name):

Psychiatrist Phone Number:

If Yes and seeking psychiatry services with Bishop Health, why are you leaving your current provider?

Therapist (Full Name):

Therapist Phone Number:

How did you hear about us?

Internet

Social Media

Psychology Today

Word Of Mouth

Medical Provider/Hospital

Other

Individual Therapy Inquiry

Name

First Last

Date Of Birth:

MM slash DD slash YYYY

Phone:

Email:

Do you have Insurance?

Yes

Primary Insurance:

Primary Insurance ID:*

Do you have Secondary Insurance?

Yes

Secondary Insurance:

Secondary Insurance ID:*

Do you have a therapist?

Yes

If Yes and seeking therapy services with Bishop Health, why are you leaving your current provider?

What medications are you currently prescribed:*

How did you hear about us?

Internet

Social Media

Psychology Today

Word Of Mouth

Medical Provider/Hospital

Other

TMS Registration Form

Name

First Last

Date Of Birth:

MM slash DD slash YYYY

Phone:

Email:

Address

Street Address City State ZIP Code

Do you have Insurance?

Yes

Primary Insurance:

Primary Insurance ID:*

Do you have Secondary Insurance?

Yes

Secondary Insurance:

Secondary Insurance ID:*

Do you currently have any of the following providers?

A Primary Care Doctor?

Yes

A Psychiatrist?

Yes

A Therapist?

Yes

Primary Care Doctor (Full Name):

Doctor Phone Number:

Current Psychiatrist (Full Name):

Psychiatrist Phone Number:

Therapist (Full Name):

Therapist Phone Number:

Do you have any metal in your head, next or face area? (i.e. a steel plate in your skull)*

Yes

Question Answer: Do you have any metal in your head, next or face area? (i.e. a steel plate in your skull)

Do you have a history of seizures or a seizure disorder?*

Yes

Question Answer: Do you have a history of seizures or a seizure disorder?

Do you have any implants such as a vagus nerve stimulator or a pace make?*

Yes

Question Answer: Do you have any implants such as a vagus nerve stimulator or a pace make?

Is there any chance that you're currently pregnant?*

Yes

Question Answer: Is there any chance that you're currently pregnant?

Are you currently or have you ever been diagnosed with Bipolar Disorder?*

Yes

Question Answer: Are you currently or have you ever been diagnosed with Bipolar Disorder?

Are you currently of have you ever experienced psychotic symptoms such as hallucinations or paranoia?*

Yes

Question Answer: Are you currently of have you ever experienced psychotic symptoms such as hallucinations or paranoia?

Do you have a history of severe head trauma, dementia or tumors in the Central Nervous System (brain)?*

Yes

Question Answer: Do you have a history of severe head trauma, dementia or tumors in the Central Nervous System (brain)?

Do you currently have any issues with substance abuse/addiction?*

Yes

Question Answer: Do you currently have any issues with substance abuse/addiction?

Please list your current medication:

1. Name:

Dose:

Approximate State Date:

MM slash DD slash YYYY

2. Name:

Dose:

Approximate State Date:

MM slash DD slash YYYY

3. Name:

Dose:

Approximate State Date:

MM slash DD slash YYYY

4. Name:

Dose:

Approximate State Date:

MM slash DD slash YYYY

Please check the medications below that you've tried in the past:

Drug Choice 1

Celexa (citalopram)

Lexapro (escitalopram)

Luvox (fluvoxamine)

Paxil (paroxetine)

Zoloft (sertraline)

Trintellix (vortioxetine)

Viibryd (vilazodone)

Pristiq (desvenlafaxine)

Cymbalta (duloxetine)

Effexor (venlafaxine)

Drug Choice 2

Fetzima (levomilnacipran)

Savella (milnacipran)

Elavil (amitriptyline)

Anafranil (clomipramine)

Norpramin (desipramine)

Sinequan (doxepin)

Tofranil (imipramine)

Wellbutrin (buroprion)

Remeron (mirtazapine)

Serzone (nefazodone)

Trazodone (desyrel)

Drug Choice 3

Abilify (aripiprazole)

Lithium (eskalith)

Tegretol (carbamazepine)

Equettro (carbamazepine XR)

Lamictal (lamotrigine)

Rexulti (brexpiprazole)

Trileptal (oxacarbazepine)

Latuda (lurasidone)

Please list any other medications not mentioned above:

How did you hear about us?

Internet

Social Media

Psychology Today

Word Of Mouth

Medical Provider/Hospital

Other

Ketamine Spravato Inquiry Form

Name

First Last

Date Of Birth:

MM slash DD slash YYYY

Phone:

Email:

Address

Street Address City State / Province / Region ZIP / Postal Code

Do you have Insurance?

Yes

Primary Insurance:

Primary Insurance ID:*

Do you have Secondary Insurance?

Yes

Secondary Insurance ID:

Secondary Insurance ID:*

Do you currently have any of the following providers?

A Primary Care Doctor?

Yes

A Psychiatrist?

Yes

A Therapist?

Yes

Primary Care Doctor (Full Name):

Doctor Phone Number:

Current Psychiatrist (Full Name):

Psychiatrist Phone Number:

Therapist (Full Name):

Therapist Phone Number:

Do you have a history Aneurysmal vascular disease (including thoracic and abdominal aorta, intracranial and peripheral arterial vessels) or arteriovenous malformation?*

Yes

Question Answer: Do you have a history Aneurysmal vascular disease (including thoracic and abdominal aorta, intracranial and peripheral arterial vessels) or arteriovenous malformation?

Do you have a history of intracerebral hemorrhage?*

Yes

Question Answer: Do you have a history of intracerebral hemorrhage?

Do you have hypersensitivity to esketamine, ketamine, or any of the excipients?*

Yes

Question Answer: Do you have hypersensitivity to esketamine, ketamine, or any of the excipients?

Do you currently have any issues with substance abuse/addiction?*

Yes

Question Answer: Do you currently have any issues with substance abuse/addiction?

Are you currently on any medications?*

Yes

Please list your current medication:

Current Medications

Please check the medications below that you've tried in the past:

Drug Choice 1

Celexa (citalopram)

Lexapro (escitalopram)

Luvox (fluvoxamine)

Paxil (paroxetine)

Zoloft (sertraline)

Trintellix (vortioxetine)

Viibryd (vilazodone)

Pristiq (desvenlafaxine)

Cymbalta (duloxetine)

Effexor (venlafaxine)

Drug Choice 2

Fetzima (levomilnacipran)

Savella (milnacipran)

Elavil (amitriptyline)

Anafranil (clomipramine)

Norpramin (desipramine)

Sinequan (doxepin)

Tofranil (imipramine)

Wellbutrin (buroprion)

Remeron (mirtazapine)

Serzone (nefazodone)

Trazodone (desyrel)

Drug Choice 3

Abilify (aripiprazole)

Lithium (eskalith)

Tegretol (carbamazepine)

Equettro (carbamazepine XR)

Lamictal (lamotrigine)

Rexulti (brexpiprazole)

Trileptal (oxacarbazepine)

Latuda (lurasidone)

Please list any other medications not mentioned above:

How did you hear about us?

Internet

Social Media

Psychology Today

Word Of Mouth

Medical Provider/Hospital

Other

Ketamine Infusion Inquiry Form

Name:

First Last

Date Of Birth:

MM slash DD slash YYYY

Phone:

Email:

Address:

Street Address City State / Province / Region ZIP / Postal Code

Do you have Insurance?

Yes

Primary Insurance:

Primary Insurance ID:*

Do you have Secondary Insurance?

Yes

Secondary Insurance:

Secondary Insurance ID:*

Do you currently have any of the following providers?

A Primary Care Doctor?

Yes

A Psychiatrist?

Yes

A Therapist?

Yes

Primary Care Doctor (Full Name):

Doctor Phone Number:

Current Psychiatrist (Full Name):

Psychiatrist Phone Number:

Therapist (Full Name):

Therapist Phone Number:

Do you have a history of substance abuse (Alcohol, cannabis, non-prescribed medications, etc.)*

Yes

Question Answer: Do you have a history of substance abuse (Alcohol, cannabis, non-prescribed medications, etc.)*

Do you have a history of history of psychosis?*

Yes

Question Answer: Do you have a history of history of psychosis?*

Do you have a history of increased intracranial pressure?*

Yes

Question Answer: Do you have a history of history of psychosis?*

Are you currently pregnant?*

Yes

Do you have a history of uncontrolled hypertension?*

Yes

Question Answer: Do you have a history of uncontrolled hypertension?*

Do you have a history of Acute or unstable cardiovascular disease?*

Yes

Question Answer: Do you have a history of Acute or unstable cardiovascular disease?*

Have you had any previous negative response to ketamine?*

Yes

Question Answer: Have you had any previous negative response to ketamine?*

Are you currently on any medications?*

Yes

Please list your current medication:

Current Medications*

Please check the medications below that you've tried in the past:

Drug Choice 1

Celexa (citalopram)

Lexapro (escitalopram)

Luvox (fluvoxamine)

Paxil (paroxetine)

Zoloft (sertraline)

Trintellix (vortioxetine)

Viibryd (vilazodone)

Pristiq (desvenlafaxine)

Cymbalta (duloxetine)

Effexor (venlafaxine)

Drug Choice 2

Fetzima (levomilnacipran)

Savella (milnacipran)

Elavil (amitriptyline)

Anafranil (clomipramine)

Norpramin (desipramine)

Sinequan (doxepin)

Tofranil (imipramine)

Wellbutrin (buroprion)

Remeron (mirtazapine)

Serzone (nefazodone)

Trazodone (desyrel)

Drug Choice 3

Abilify (aripiprazole)

Lithium (eskalith)

Tegretol (carbamazepine)

Equettro (carbamazepine XR)

Lamictal (lamotrigine)

Rexulti (brexpiprazole)

Trileptal (oxacarbazepine)

Latuda (lurasidone)

Please list any other medications not mentioned above:

How did you hear about us?

Internet

Social Media

Psychology Today

Word Of Mouth

Medical Provider/Hospital

Other

Which Medical Provider/Hospital?

Other - Please explain:

IOP / PHP

Our Partial Hospitalization (PHP) and Intensive Outpatient Programs (IOP) offer structured, multi-disciplinary mental health treatment that provides several hours of daily therapeutic intervention while allowing patients to return home each evening, combining group therapy, individual counseling, psychiatric care, and skill-building activities in a supportive community environment. These programs can catalyze rapid, transformative change for individuals with anxiety, depression, and other mental health conditions by providing the intensive support and accountability that traditional weekly therapy or medication management alone may lack, offering multiple therapeutic modalities daily that help break entrenched patterns, develop coping strategies, and create lasting behavioral changes within weeks rather than months or years.

If you have questions, please contact us at: (207) 910-6580

Date of Referral:

MM slash DD slash YYYY

Demographic Information

Name of Patient:

Pronouns:

Address

Street Address City State / Province / Region ZIP / Postal Code

Best Contact #:

DOB:

MM slash DD slash YYYY

Insurance Information

Insurance Co:

ID#:

Group #:

Subscriber Name:

DOB:

# To Verify Benefits:

Referral Source

Referring Provider Name:

Credentials:

Agency:

Phone:

Email (required):

Length of Treatment Relationship:

Date of most recent visit:

MM slash DD slash YYYY

Clinical Information

Provide a brief description of the patient's current symptoms, functional impairment and reason why needs are best met at IOP level of care:

Provide a description of recent safety concerns including non-suicidal self-injurious behaviors, suicide behaviors or attempts, risk taking behaviors, inability to care for self and aggression or threats to others:

Clinical Goals

Primary Goal:

Secondary Goal:

Current Behavioral Health Diagnoses

Has the patient agreed to participate in Bishop Health IOP if accepted?

Yes

Is substance use an active concern?

Yes

Is an eating disorder an active concern?

Yes

What treatment alternatives to IOP have been or are being considered?

Yes

Previous Mental Health Treatment Programs (include hospitalizations, PHP/IOP, outpatient and substance use treatments):

Substance Use (current and history of problematic use)

Alcohol:

Tobacco:

Drugs:

Caffeine:

Current Medication (name, dose and frequency):

Medication allergies and adverse reactions:

Is the patient compliant with medications?

Yes

If not, what are identified barriers?

What medication adjustments or changes are deemed necessary?

Past Medical History

Any other pertinent social or trauma information

Current Outpatient Treatment

Psychiatrist:

Dietician:

Therapist:

Other:

Primary Care:

Anticipated prescriber at discharge:

*If the patient does not have a current outpatient prescriber, please list all referrals made for this patient, including status

Comments/Other Relevant Information

CAPTCHA