Doctor profile · Federal record

Dr. Melinda Haddock-Diaz, DNP, APRN, FNP-C

Family Nurse Practitioner (CMS: Nurse Practitioner) · Registered Nurse · Clarksville, TN

  • NPI 1427723089
  • Accepts Medicare
  • 5 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
198 Old Farmers RD
Clarksville, TN 370434032
(931) 358-2900
fax (931) 358-3821
Mailing address
518 W Point Dr
Clarksville, TN 370434003

Credentials & registration

NPPES · NUCC
NPI registered
August 2021 — 5 yrs on file
Profile last updated
September 25, 2021
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Tennessee #30209 · Tennessee #150229

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427723089. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
368
Distinct HCPCS
10
Medicare allowed
$22,533
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 181 158 $93
96127 Assessment of emotional or behavioral problems 36 33 $4
96372 Injection of drug or substance under skin or into muscle 29 21 $11
99213 Established patient office or other outpatient visit, 20-29 minutes 28 26 $69
87804 Detection test by immunoassay with direct visual observation for influenza virus 26 13 $16
81003 Automated urinalysis test 16 13 $2
99203 New patient office or other outpatient visit, 30-44 minutes 16 16 $88
G0008 Administration of influenza virus vaccine 13 13 $28
90662 Influenza vaccine split virus, preservative free 12 12 $72
80305 Testing for presence of drug, read by direct observation 11 11 $12

In context: peer comparison

Among 28 peers in Clarksville Family Nurse Practitioner, average services per provider: 129. This provider delivers 2.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$176
Transactions
10
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 3 $53.24
Novo Nordisk INC 3 $50.17
Lilly USA, LLC 2 $38.96
Exact Sciences Corporation 1 $18.60
Abbvie INC. 1 $15.28

By nature of payment

Food and Beverage
$176

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
548
Patients
319
Total drug cost
$7,622
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 66 38 $817
Losartan Potassium Generic 50 22 $547
Levothyroxine Sodium Generic 45 22 $1,271
Lisinopril Generic 40 19 $332
Gabapentin Generic 38 18 $282
Hydrochlorothiazide Generic 35 22 $273
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 35 22 $908
Amlodipine Besylate Generic 33 17 $341
Metoprolol Tartrate Generic 32 12 $155
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 30 24 $831

Frequently asked questions

Auto-generated from federal data
What is Dr. Melinda Haddock-Diaz's medical specialty?
Dr. Melinda Haddock-Diaz practices Family Nurse Practitioner in Clarksville, TN.
Where does Dr. Melinda Haddock-Diaz practice?
Dr. Melinda Haddock-Diaz practices at 198 Old Farmers RD, Clarksville, TN 370434032. Office phone: 9313582900.
What is Dr. Melinda Haddock-Diaz's NPI?
Dr. Melinda Haddock-Diaz's National Provider Identifier (NPI) is 1427723089, issued by NPPES.
Does Dr. Melinda Haddock-Diaz accept Medicare assignment?
Yes. Dr. Melinda Haddock-Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melinda Haddock-Diaz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Assessment of emotional or behavioral problems (HCPCS 96127); Injection of drug or substance under skin or into muscle (HCPCS 96372). Source: CMS Medicare Physician & Other Practitioners file.