Matthew A. Keen, FNP-C
- Medicare patients, 2024
- 128
- Part D claims, 2024
- 383
- Hospital affiliations
- 3
- Industry payments
- $179
- Medical groups
- 7
- Practice address
- 10010 Kennerly Road, Saint Louis, MO 63128
- Practice phone
- Call (314) 525-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Matthew Keen'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.
Matthew A. Keen is a family nurse practitioner in Saint Louis, Missouri
Matthew Keen practices at Mercy Hospital South in Saint Louis, Missouri, part of Mercy.
Matthew Keen's NPI, 1689124414, was assigned on October 5, 2016. Matthew Keen graduated from Texas Tech University Health Science Center School of Medicine in 2016. Matthew Keen holds Missouri license 2016035658.
- NPI
- 1689124414NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476833369
- NPI enumeration date
- October 5, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 525-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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)
Matthew A. Keen practices at Mercy Hospital South in Saint Louis, Missouri
Matthew Keen's primary practice is Mercy Hospital South, at 10010 Kennerly Road, Saint Louis, MO 63128 in St. Louis County. The practice phone is (314) 525-1000.
- Mercy Hospital South10010 Kennerly Road, Saint Louis, MO 63128 · St. Louis CountyPhone(314) 525-1000
Source: Dmand AI Affiliation Data
Matthew A. Keen is affiliated with 4 sites of care and 7 medical groups
Matthew Keen's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Matthew Keen is also affiliated with Anderson Hospital. The medical group on file is Mercy Hospital South. Dmand AI also links Matthew Keen to 1 more hospital, 6 medical groups and 1 group practice or clinic, each named with a free account. Matthew Keen's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Matthew A. Keen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matthew Keen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital South | Available with a free account |
| +3 more sites and 6 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 Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Matthew A. Keen is one of 3,989 family nurse practitioners in Missouri
Family is Matthew Keen's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Matthew Keen is licensed in Missouri.
Specialties and state licenses
- Family nurse practitioner, MissouriPrimary
Family nurse practitioners near Matthew Keen
Counts of family 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
Matthew A. Keen treated 128 Medicare patients in 2024, average age 72
CMS counts 128 Medicare patients who saw Matthew Keen in 2024. The largest group is 65 to 74, with 51 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Matthew Keen's median patient age at 49, with 54% women.
Matthew Keen's Medicare patients by age, 2024
Matthew Keen's Medicare patients by sex, 2024
- Women8063%
- Men4838%
Chronic conditions among Matthew Keen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Mood disorders46%
- Depression41%
- Anxiety38%
- Chronic kidney disease35%
- Diabetes34%
Share of Medicare patients with each condition. A patient can have several.
Matthew Keen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matthew A. Keen wrote 383 Medicare Part D claims in 2024
In 2024, Matthew Keen wrote 383 Medicare Part D claims for 262 patients. 93% of them were for generic drugs.
Matthew Keen's Part D claims by kind of drug, 2024
- Generic358 claims93%
- Brand-name and other25 claims7%
Drug classes CMS tracks in Matthew Keen's Part D claims, 2024
- Opioids7%28 of 383 claims
- Antibiotics33%126 of 383 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
Matthew A. Keen offers telehealth to Medicare patients
Matthew Keen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Matthew Keen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Matthew A. Keen received $179 in industry payments in 2025
CMS Open Payments shows 3 general payments to Matthew Keen from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Innovation Technologies Inc paid the most, $145.
Companies that paid Matthew Keen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Matthew A. Keen graduated from Texas Tech University Health Science Center School of Medicine
Matthew Keen graduated from Texas Tech University Health Science Center School of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Matthew A. Keen'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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Matthew A. Keen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Matthew A. Keen's NPI number?
Matthew A. Keen's NPI number is 1689124414. It was assigned on October 5, 2016, and it is active in the NPI Registry.
What does Matthew A. Keen specialize in?
Matthew A. Keen is a family nurse practitioner in Saint Louis, Missouri. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Matthew A. Keen practice?
Matthew Keen practices at 10010 Kennerly Road, Saint Louis, MO 63128. Matthew Keen's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dmand AI also links Matthew Keen to 1 hospital, 6 medical groups and 1 group practice or clinic.
What is Matthew A. Keen's office phone number?
The practice phone on file for Matthew Keen is (314) 525-1000.
What is Matthew A. Keen's medical license number?
Matthew Keen holds Missouri license 2016035658.
Which hospitals is Matthew A. Keen affiliated with?
Matthew Keen practices at Mercy Hospital South in Saint Louis, Missouri. Matthew Keen is also affiliated with Anderson Hospital. Dmand AI links Matthew Keen to 1 more hospital.
What medical group is Matthew A. Keen part of?
Matthew Keen is linked to Mercy Hospital South. Dmand AI links Matthew Keen to 6 more medical groups.
Does Matthew A. Keen accept Medicare?
Yes. CMS lists Matthew Keen as accepting Medicare assignment.
Does Matthew A. Keen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Matthew Keen as offering telehealth services.
How many Medicare patients does Matthew A. Keen see?
CMS counts 128 Medicare patients who saw Matthew Keen in 2024, with an average age of 72.
Show 3 more questionsShow fewer questions
Where did Matthew A. Keen go to medical school?
Matthew Keen graduated from Texas Tech University Health Science Center School of Medicine in 2016.
Has Matthew A. Keen received payments from drug or device companies?
CMS Open Payments shows $179 in general payments to Matthew Keen from 3 companies from 2025 to 2025. The largest total came from Innovation Technologies Inc.
How long has Matthew A. Keen been practicing?
Matthew Keen graduated from medical school in 2016, 10 years ago.
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