Colleen McMahon
- Medicare patients, 2024
- 73
- Part D claims, 2024
- 8,930
- Hospital affiliations
- 3
- Industry payments
- $111
- Medical groups
- 3
- Practice address
- 180 Debuys Road, Building C, Biloxi, MS 39531
- Practice phone
- Call (228) 388-0600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Colleen McMahon's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Colleen McMahon is a psychiatric/mental health nurse practitioner in Biloxi, Mississippi
Colleen McMahon practices at Oceans Behavioral Hospital - Biloxi in Biloxi, Mississippi, part of Oceans Healthcare.
Colleen McMahon's NPI, 1922559012, was assigned on October 24, 2016. Colleen McMahon holds Mississippi license 901814.
- NPI
- 1922559012NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123395944
- NPI enumeration date
- October 24, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (228) 388-0600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Colleen McMahon practices at Oceans Behavioral Hospital - Biloxi in Biloxi, Mississippi
Colleen McMahon's primary practice is Oceans Behavioral Hospital - Biloxi, at 180 Debuys Road, Building C, Biloxi, MS 39531 in Harrison County. The practice phone is (228) 388-0600.
- Oceans Behavioral Hospital - Biloxi180 Debuys Road, Building C, Biloxi, MS 39531 · Harrison CountyPhone(228) 388-0600
Source: Dmand AI Affiliation Data
Colleen McMahon is affiliated with 4 sites of care and 3 medical groups
Colleen McMahon's primary practice is Oceans Behavioral Hospital - Biloxi in Biloxi, Mississippi, part of Oceans Healthcare. Colleen McMahon is also affiliated with Memorial Hospital Gulfport. The medical group on file is Prime Source Nursing Services. Dmand AI also links Colleen McMahon to 1 more hospital, 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Colleen McMahon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Colleen McMahon practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oceans Behavioral Hospital - Biloxi | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Oceans Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Colleen McMahon is one of 379 psychiatric/mental health nurse practitioners in Mississippi
Psychiatric/mental health is Colleen McMahon's primary specialty in the NPI Registry, under taxonomy code 363LP0808X. Colleen McMahon is licensed in Mississippi.
Specialties and state licenses
- Psychiatric/mental health nurse practitioner, MississippiPrimary
Psychiatric/mental health nurse practitioners near Colleen McMahon
Counts of psychiatric/mental health nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Colleen McMahon treated 73 Medicare patients in 2024, average age 59
CMS counts 73 Medicare patients who saw Colleen McMahon in 2024. The largest group is under 65, with 36 patients. 75% of them have anxiety, and 75% have mood disorders. 44% are also on Medicaid. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Colleen McMahon's median patient age at 56, with 60% women.
Colleen McMahon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Colleen McMahon's Medicare patients by sex, 2024
- Women5474%
- Men1926%
Chronic conditions among Colleen McMahon's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- High blood pressure66%
- Depression64%
- High cholesterol58%
- Bipolar disorder53%
- Arthritis42%
- ADHD and conduct disorders40%
Share of Medicare patients with each condition. A patient can have several.
Colleen McMahon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Colleen McMahon wrote 8,930 Medicare Part D claims in 2024
In 2024, Colleen McMahon wrote 8,930 Medicare Part D claims for 260 patients. 96% of them were for generic drugs.
Colleen McMahon's Part D claims by kind of drug, 2024
- Generic8,560 claims96%
- Brand-name370 claims4%
Drug classes CMS tracks in Colleen McMahon's Part D claims, 2024
- Antipsychotics, patients 65 and over3%274 of 8,930 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Colleen McMahon takes part in Medicare
Colleen McMahon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Colleen McMahon received $111 in industry payments in 2025
CMS Open Payments shows 11 general payments to Colleen McMahon from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $97.
Companies that paid Colleen McMahon the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Colleen McMahon's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Colleen McMahon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Colleen McMahon's NPI number?
Colleen McMahon's NPI number is 1922559012. It was assigned on October 24, 2016, and it is active in the NPI Registry.
What does Colleen McMahon specialize in?
Colleen McMahon is a psychiatric/mental health nurse practitioner in Biloxi, Mississippi. The primary specialty in the NPI Registry is Psychiatric/Mental Health Nurse Practitioner (taxonomy code 363LP0808X).
Where does Colleen McMahon practice?
Colleen McMahon practices at 180 Debuys Road, Building C, Biloxi, MS 39531. Colleen McMahon's primary practice is Oceans Behavioral Hospital - Biloxi in Biloxi, Mississippi, part of Oceans Healthcare. Dmand AI also links Colleen McMahon to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Colleen McMahon's office phone number?
The practice phone on file for Colleen McMahon is (228) 388-0600.
What is Colleen McMahon's medical license number?
Colleen McMahon holds Mississippi license 901814.
Which hospitals is Colleen McMahon affiliated with?
Colleen McMahon practices at Oceans Behavioral Hospital - Biloxi in Biloxi, Mississippi. Colleen McMahon is also affiliated with Memorial Hospital Gulfport. Dmand AI links Colleen McMahon to 1 more hospital.
What medical group is Colleen McMahon part of?
Colleen McMahon is linked to Prime Source Nursing Services. Dmand AI links Colleen McMahon to 2 more medical groups.
Does Colleen McMahon accept Medicare?
Yes. CMS lists Colleen McMahon as accepting Medicare assignment.
How many Medicare patients does Colleen McMahon see?
CMS counts 73 Medicare patients who saw Colleen McMahon in 2024, with an average age of 59.
Has Colleen McMahon received payments from drug or device companies?
CMS Open Payments shows $111 in general payments to Colleen McMahon from 2 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Colleen McMahon been practicing?
Colleen McMahon graduated from medical school in 2016, 10 years ago.
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