Doctor profile · Federal record

Dr. Colleen McMahon

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Diamondhead, MS

  • NPI 1922559012
  • Accepts Medicare
  • 10 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
7826 Koko Pl
Diamondhead, MS 395253624
(228) 324-0974

Credentials & registration

NPPES · NUCC
NPI registered
October 2016 — 10 yrs on file
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
Mississippi #901814

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1922559012. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
236
Distinct HCPCS
4
Medicare allowed
$19,043
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 138 50 $70
99214 Established patient office or other outpatient visit, 30-39 minutes 66 43 $98
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 20 14 $63
90792 Psychiatric diagnostic evaluation with medical services 12 12 $139

In context: peer comparison

Among 1 peers in Diamondhead Psychiatric/Mental Health Nurse Practitioner, average services per provider: 59. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$399
Transactions
25
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 19 $214.25
Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) 1 $104.14
Supernus Pharmaceuticals, INC. 2 $31.83
E.R. Squibb & Sons, L.L.C. 1 $27.27
Corium, LLC 2 $21.44

By nature of payment

Food and Beverage
$372
Education
$27

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,720
Patients
538
Total drug cost
$85,726
Drug Type Claims Patients Total cost
Quetiapine Fumarate Generic 522 54 $11,343
Clonazepam Generic 386 46 $2,442
Fluoxetine Hcl Generic 376 46 $2,705
Risperidone Generic 366 35 $4,482
Trazodone Hcl Generic 346 45 $4,978
Olanzapine Generic 335 31 $13,373
Oxcarbazepine Generic 310 32 $8,363
Benztropine Mesylate Generic 306 32 $4,470
Divalproex Sodium Generic 292 30 $9,172
Alprazolam Generic 282 30 $2,028

Frequently asked questions

Auto-generated from federal data
What is Dr. Colleen McMahon's medical specialty?
Dr. Colleen McMahon practices Psychiatric/Mental Health Nurse Practitioner in Diamondhead, MS.
Where does Dr. Colleen McMahon practice?
Dr. Colleen McMahon practices at 7826 Koko Pl, Diamondhead, MS 395253624. Office phone: 2283240974.
What is Dr. Colleen McMahon's NPI?
Dr. Colleen McMahon's National Provider Identifier (NPI) is 1922559012, issued by NPPES.
Does Dr. Colleen McMahon accept Medicare assignment?
Yes. Dr. Colleen McMahon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Colleen McMahon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.