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- 976 Solomans Island Road, Prince Frederick, MD 20678
About Mary Walter
Mary G. Walter, RN/NP, PMHNP-BC is a nurse practitioner — psychiatric/mental health practicing in Prince Frederick, MD. According to Medicare claims data, Mary cared for 151 Medicare patients across 568 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, injection of drug or substance under skin or into muscle, and psychotherapy, 45 minutes. This provider record is associated with NPI 1023449642.
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
- (410) 535-5400
- Email not available
Practice Locations
976 SOLOMANS ISLAND ROAD
Prince Frederick, MD 20678
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Psychiatric/Mental Health 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 issues
- Brain Fog and Mental Fatigue
- Dementia with behavioral symptoms
- Mild cognitive impairment
Mood disorders
- Emotional Numbness
- Menopause Mood Swings and Anxiety
- Bipolar disorder
- Depression
- Mood swings
- Postpartum depression
- Premenstrual dysphoric disorder
- Seasonal affective disorder
Sleep
- Neurologic sleep disorders
- Chronic Nightmares
- Insomnia and Sleep Problems
Addiction
Addiction & substance use
Anxiety & panic
Attention & learning
Behavioral health
Behavioral issues
Child & adolescent
Cognitive disorders
Crisis & safety
Eating disorders
Medication side effects
- Involuntary Twitches from Meds
Obsessions & compulsions
Personality disorders
Psychotic disorders
- Delusional disorder
- Hearing Voices and Hallucinations
- Schizoaffective disorder
- Schizophrenia
Stress & lifestyle
Trauma & stress
Procedures & services
Addiction treatment
- Dual Diagnosis Addiction Treatment
- Vivitrol and Naltrexone Treatment
- Suboxone Treatment and MAT
Consultations
- Holistic Mental Health Consultation
- Transcranial Magnetic Stimulation (TMS) Consultation
Crisis care
- Urgent Psychiatric Consultation
Evaluations & paperwork
- Child Psychiatric Evaluation
- Disability Mental Health Evaluation
- Gender-Affirming Mental Health Letter
- Psychiatric Clearance for Surgery
- School Accommodation Evaluation
- Treatment-Resistant Depression Evaluation
- Cognitive Assessment
Evaluations & testing
- ADHD Testing and Diagnosis
- Adolescent Psychiatric Evaluation
- Emotional Support Animal (ESA) Evaluation
- FMLA and Mental Health Leave Paperwork
- Postpartum Mental Health Screening
- Second Opinion on Mental Health Diagnosis
- DNA drug response testing
- Psychiatric evaluation
Interventional treatments
- Ketamine Therapy Consultation
- Spravato (Esketamine) Treatment
Medication management
- Antidepressant Prescription
- Antipsychotic Medication Management
- Anxiety Medication Management
- Benzodiazepine Tapering
- Lithium Monitoring and Blood Level Checks
- Long-Acting Antipsychotic Shot
- Non-Stimulant ADHD Medication Management
- Prescription Refill Visit
- Smoking Cessation Medication Visit
- Stimulant Medication Monitoring
- Switching Antidepressants
- Tardive Dyskinesia Treatment
- Weight Management for Psychiatric Med Side Effects
- Lab Work for Psychiatric Medications
- Medication management
- Mood Stabilizer Management
- Sleep Medication Management
- Tapering Off Psychiatric Medication
Therapy
- Somatic Calming and Relaxation Training
- Acceptance and commitment therapy (ACT)
- Anger Management Counseling
- Bereavement counseling
- Insomnia Treatment (CBT-I)
- Suicide safety planning
Therapy & counseling
- Couples and Family Mental Health Counseling
- Dialectical Behavior Therapy (DBT) Skills
- Cognitive Behavioral Therapy (CBT)
- Exposure and Response Prevention
- Mindfulness-based stress reduction
- Prolonged exposure therapy
- Supportive psychotherapy
Telehealth
- Telepsychiatry
Procedures Most Often Billed to Medicare
568 services · 151 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
183 | More than most peers in Psychiatric Nurse Practitioner |
| Psychotherapy, 45 minutes | Treatment | 90834 |
43 | Less often than most peers in Psychiatric Nurse Practitioner |
| Psychotherapy, 1 hour | Treatment | 90837 |
22 | Less often than most peers in Psychiatric Nurse Practitioner |
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
15 | Less often than most peers in Psychiatric Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
271 | More than most peers in Psychiatric Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
34 | Less often than most peers in Psychiatric Nurse Practitioner |
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 nurse practitioners in Prince Frederick 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2013 at Other 7
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Injection of drug or substance under skin or into muscle 8
Providers in MD who bill this service to Medicare most often.
Common questions
What kind of doctor is Mary G. Walter, RN/NP?
Mary G. Walter, RN/NP is a nurse practitioner in Prince Frederick, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Psychiatric/Mental Health”.
NPI registry
What is Mary G. Walter, RN/NP's address?
Mary G. Walter, RN/NP is listed at 976 Solomans Island Road, Prince Frederick, MD 20678. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mary G. Walter, RN/NP?
The number on file is (410) 535-5400. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mary G. Walter, RN/NP's NPI number?
Mary G. Walter, RN/NP's National Provider Identifier is 1023449642. 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
Where did Mary G. Walter, RN/NP train?
Mary G. Walter, RN/NP attended Other, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
How long has Mary G. Walter, RN/NP been practicing?
Mary G. Walter, RN/NP has 13 years experience. Calculated from a graduation year of 2013, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mary G. Walter, RN/NP perform?
According to Medicare billing data, Mary G. Walter, RN/NP provides treatments such as injection of drug or substance under skin or into muscle 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 Mary G. Walter, RN/NP confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mary G. Walter, RN/NP. If this is you, claiming it is free.
Guide.md
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