Mary Walker, CRNP
NPI 1699761619 · Psychiatric/Mental Health Nurse Practitioner · Salisbury, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Walker, CRNP is a Psychiatric/Mental Health Nurse Practitioner provider in Salisbury, MD (NPI 1699761619).
Provider details
- NPI number
- 1699761619
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R063517 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
625 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 289 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 203 | $107 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 91 | $75 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 42 | $14 |
Typical Medicare-allowed amounts for these services range $14–$107 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 179 | 20 |
| Alprazolam | 96 | 15 |
| Lamotrigine | 81 | — |
| Quetiapine Fumarate | 80 | — |
| Escitalopram Oxalate | 79 | — |
| Duloxetine Hcl | 78 | — |
| Buspirone Hcl | 61 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$362 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-26
- Last updated
- 2021-03-23
- Certified
- 2021-03-23
Frequently asked questions
- What is Mary Walker's NPI number?
- Mary Walker's National Provider Identifier (NPI) is 1699761619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Walker's specialty?
- Mary Walker is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Walker located?
- Mary Walker's practice location on file with NPPES is 106 Milford St., Salisbury, MD 21804-6958.
- What is Mary Walker's phone number?
- The practice phone number listed in the NPPES registry for Mary Walker is (410) 546-5954.
- Does Mary Walker accept Medicare?
- Mary Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Walker's NPI active?
- Yes — Mary Walker's NPI (1699761619) is active in the NPPES registry as of the last update on 2021-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.