Michael Walker
NPI 1588272611 · Psychiatric/Mental Health Nurse Practitioner · Knoxville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Walker is a Psychiatric/Mental Health Nurse Practitioner provider in Knoxville, TN (NPI 1588272611).
Provider details
- NPI number
- 1588272611
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 0000207379 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lamotrigine | 236 | 55 |
| Aripiprazole | 176 | 43 |
| Trazodone Hcl | 167 | 50 |
| Quetiapine Fumarate | 167 | 36 |
| Bupropion Hclbrand: Bupropion Xl | 146 | 39 |
| Buspirone Hcl | 139 | 36 |
| Clonazepam | 125 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$494 across 19 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
Additional practice locations (1)
- 140 Jennings Ave Apt 106Knoxville, TN 37917-7158Phone: (423) 312-0321
Registry dates
- Enumerated
- 2020-07-15
- Last updated
- 2021-08-12
- Certified
- 2021-08-12
Frequently asked questions
- What is Michael Walker's NPI number?
- Michael Walker's National Provider Identifier (NPI) is 1588272611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Walker's specialty?
- Michael 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 Michael Walker located?
- Michael Walker's practice location on file with NPPES is 2018 Western Ave, Knoxville, TN 37921-5718.
- What is Michael Walker's phone number?
- The practice phone number listed in the NPPES registry for Michael Walker is (865) 544-0406.
- Does Michael Walker accept Medicare?
- Michael Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Walker's NPI active?
- Yes — Michael Walker's NPI (1588272611) is active in the NPPES registry as of the last update on 2021-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.