Marcia Walmer, RN, AP/MHNP
NPI 1891081816 · Psychiatric/Mental Health Nurse Practitioner · Columbia, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcia Walmer, RN, AP/MHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Columbia, MO (NPI 1891081816).
Provider details
- NPI number
- 1891081816
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, AP/MHNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209-014459 (IL)
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
14 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
375 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 112 | $115 |
| 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 | 112 | $15 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 58 | $67 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $71 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 30 | $168 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 68 | 17 |
| Trazodone Hcl | 50 | 22 |
| Quetiapine Fumarate | 49 | 18 |
| Gabapentin | 48 | 20 |
| Escitalopram Oxalate | 41 | 16 |
| Clonazepam | 35 | — |
| Buspirone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$149 across 8 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
- 2011-06-28
- Last updated
- 2026-04-24
- Certified
- 2026-04-24
Frequently asked questions
- What is Marcia Walmer's NPI number?
- Marcia Walmer's National Provider Identifier (NPI) is 1891081816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcia Walmer's specialty?
- Marcia Walmer is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcia Walmer located?
- Marcia Walmer's practice location on file with NPPES is 1705 E Broadway Ste 200, Columbia, MO 65201-7167.
- What is Marcia Walmer's phone number?
- The practice phone number listed in the NPPES registry for Marcia Walmer is (573) 303-3314.
- Does Marcia Walmer accept Medicare?
- Marcia Walmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcia Walmer's NPI active?
- Yes — Marcia Walmer's NPI (1891081816) is active in the NPPES registry as of the last update on 2026-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.