Grady Mcmillen
NPI 1528839974 · Psychiatric/Mental Health Nurse Practitioner · Knoxville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grady Mcmillen is a Psychiatric/Mental Health Nurse Practitioner provider in Knoxville, TN (NPI 1528839974).
Provider details
- NPI number
- 1528839974
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 154330 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (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 (2)
- 410 Clinchview DrLenoir City, TN 37771-7500Phone: (865) 556-0571
- 1704 E Broadway AveMaryville, TN 37804-2916Phone: (865) 681-6990
Registry dates
- Enumerated
- 2024-01-15
- Last updated
- 2025-04-29
- Certified
- 2025-04-29
Frequently asked questions
- What is Grady Mcmillen's NPI number?
- Grady Mcmillen's National Provider Identifier (NPI) is 1528839974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grady Mcmillen's specialty?
- Grady Mcmillen is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grady Mcmillen located?
- Grady Mcmillen's practice location on file with NPPES is 1515 Saint Mary St, Knoxville, TN 37917-4503.
- What is Grady Mcmillen's phone number?
- The practice phone number listed in the NPPES registry for Grady Mcmillen is (865) 637-9711.
- Does Grady Mcmillen accept Medicare?
- Grady Mcmillen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grady Mcmillen's NPI active?
- Yes — Grady Mcmillen's NPI (1528839974) is active in the NPPES registry as of the last update on 2025-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.