Doctor profile · Federal record
Dr. Mary Walker, APN
Family Nurse Practitioner (CMS: Nurse Practitioner) · Madisonville, TN
- NPI 1023051067
- Accepts Medicare
- 24 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
465 Isbill RD
Madisonville, TN 373542112
(865) 335-0330
fax (865) 273-1755 - Mailing address
-
P.O. Box 6307
Maryville, TN 378026307
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- April 11, 2013
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Tennessee #5417
- Medicaid
- TN #39083231
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023051067. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
741
Distinct HCPCS
6
Medicare allowed
$74,188
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 313 | 100 | $101 | |
99350 |
Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | 203 | 87 | $148 | |
99348 |
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 158 | 80 | $61 | |
99497 |
Advance care planning, first 30 minutes | 29 | 28 | $66 | |
G0318 |
Prolonged home or residence evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualif | 22 | 17 | $25 | |
11721 |
Removal of fingernails or toenails, 6 or more nails | 16 | 16 | $35 |
In context: peer comparison
Among 4 peers in Madisonville Family Nurse Practitioner, average services per provider: 57. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$705
Transactions
28
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 7 | $212.79 | |
| Organogenesis INC. | 1 | $113.64 | |
| Eisai INC. | 3 | $70.73 | |
| Lilly USA, LLC | 4 | $68.28 | |
| GlaxoSmithKline, LLC. | 3 | $55.18 | |
| Novo Nordisk INC | 3 | $49.75 | |
| Lundbeck LLC | 1 | $28.07 | |
| Astellas Pharma US INC | 1 | $21.93 | |
| Abbvie INC. | 1 | $19.26 | |
| Neurocrine Biosciences, INC. | 1 | $19.17 | |
| Otsuka America Pharmaceutical, INC. | 1 | $17.78 | |
| Bayer Healthcare Pharmaceuticals INC. | 1 | $15.05 | |
| Pfizer INC. | 1 | $13.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,077
Patients
488
Total drug cost
$140,200
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Mirtazapine | Generic | 321 | 43 | $7,708 |
| Levothyroxine Sodium | Generic | 292 | 46 | $3,375 |
| Atorvastatin Calcium | Generic | 271 | 41 | $2,925 |
| Losartan Potassium | Generic | 232 | 35 | $2,358 |
| Sertraline Hcl | Generic | 222 | 32 | $1,733 |
| Donepezil Hcl | Generic | 191 | 31 | $1,663 |
| Escitalopram Oxalate | Generic | 191 | 29 | $2,061 |
| Furosemide | Generic | 191 | 39 | $936 |
| Eliquis (Apixaban) | Brand | 189 | 34 | $102,716 |
| Potassium Chloride | Generic | 182 | 32 | $3,363 |
Hospital affiliations
Frequently asked questions
What is Dr. Mary Walker's medical specialty?
Dr. Mary Walker practices Family Nurse Practitioner in Madisonville, TN.
Where does Dr. Mary Walker practice?
Dr. Mary Walker practices at 465 Isbill RD, Madisonville, TN 373542112. Office phone: 8653350330.
What is Dr. Mary Walker's NPI?
Dr. Mary Walker's National Provider Identifier (NPI) is 1023051067, issued by NPPES.
Does Dr. Mary Walker accept Medicare assignment?
Yes. Dr. Mary Walker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Walker commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Residence visit for established patient with high level of medical decision making (HCPCS 99350); Residence visit for established patient with low level of medical decision making (HCPCS 99348). Source: CMS Medicare Physician & Other Practitioners file.