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MS. MARY GORDON WALTER RN/NP, PMHNP-BC
NPI 1023449642
Nurse Practitioner - Psychiatric/Mental Health in Prince Frederick, MD

Active since December 07, 2013PECOS EnrolledAccepts Medicare Assignment
84.77/100
CMS Quality Rating
976 SOLOMANS ISLAND ROAD, PRINCE FREDERICK, MD 20678(410) 535-5400 Get Directions Write a Review

NPPES record last updated: September 29, 2015. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ms. Mary Gordon Walter Rn/np, Pmhnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. MARY GORDON WALTER RN/NP, PMHNP-BC (NPI 1023449642) is an individual psychiatric/mental health provider in Prince Frederick, Maryland, licensed in Maryland (R217581) and active in the NPI registry since December 2013. She is enrolled in Medicare PECOS, is affiliated with Calverthealth Medical Center, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1023449642
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMS. MARY GORDON WALTERCredential: RN/NP, PMHNP-BC
Location Address976 SOLOMANS ISLAND ROADPrince Frederick, MD 20678
Mailing Address975 Solomons Island Rd NPrince Frederick, MD 20678-3917
Phone(410) 535-5400
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateDecember 7, 2013
Last NPPES UpdateSeptember 29, 2015
✔ NPI 1023449642 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in MD · R217581✔ Licensed in MA · RN2274139
Also ListedRegistered Nurse · EmergencyTaxonomy 163WE0003X · License RN2274139 (MA)
976 SOLOMANS ISLAND ROAD, Prince Frederick, MD 20678
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Mary Gordon Walter Rn/np, Pmhnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567687767
PECOS Enrollment IDI20161003001632
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
271 services73 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
183 services20 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
43 services13 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
34 services19 patients
Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
22 services11 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Calverthealth Medical Center

Acute Care Hospitals · Prince Frederick, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number210039
Location100 Hospital RoadPrince Frederick, MD 20678 · Calvert County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20678 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$89.75 typical visit price
range $57.99 – $175.57
Typical copayment $22.43 (range $14.49 – $43.89)
Most-billed visit code 99203
Established Patient
$102.11 typical visit price
range $18.66 – $143.02
Typical copayment $25.52 (range $4.66 – $35.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.77/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality58.96
Promoting Interoperability77
Improvement Activities40
Cost92.79

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Walter's NPI number?

The NPI number for Mary Walter is 1023449642. It was assigned to this individual provider in the NPPES registry on December 7, 2013.

Where is Mary Walter located?

Mary Walter practices at 976 Solomans Island Road, Prince Frederick, MD 20678. The listed phone number is (410) 535-5400.

What is Mary Walter's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Mary Walter enrolled in Medicare?

Yes. Mary Walter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mary Walter accept?

Health plans from Providence Health Plan list Mary Walter as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mary Walter affiliated with any hospitals?

According to CMS data, Mary Walter is affiliated with Calverthealth Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Walter was last updated on September 29, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.