Dr. Mark K. Keohane, MD
- Industry payments
- $30
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice locations
- 2
- Practice address
- 223 S 3rd St, Hayti, MO 63851-1617
- Practice phone
- Call (573) 717-1072
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hayti Medical & Diagnostic
Rural health clinic · Hayti, Missouri
Find Dr. Keohane'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.
Dr. Mark K. Keohane is an orthopedic surgeon in O Fallon, Missouri
Dr. Keohane practices at Hayti Medical & Diagnostic in Hayti, Missouri.
Dr. Keohane's NPI, 1710980750, was assigned on May 23, 2005. Dr. Keohane graduated from Saint Louis University School of Medicine in 1971. Dr. Keohane holds Missouri license 34653.
- NPI
- 1710980750NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931179769
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (573) 717-1072
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 81
- Medical school graduation
- 1971
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark K. Keohane practices in Hayti and O Fallon
Dr. Keohane's primary practice is Hayti Medical & Diagnostic, at 223 S 3rd St, Hayti, MO 63851-1617. The practice phone is (573) 717-1072. The NPI Registry lists Dr. Keohane's practice address as 9323 Phoenix Village Pkwy, O Fallon, MO 63366-4281.
- Hayti Medical & DiagnosticPrimary223 S 3rd St, Hayti, MO 63851-1617Phone(573) 717-1072
- NPI Registry address9323 Phoenix Village Pkwy, O Fallon, MO 63366-4281Phone(636) 561-5030
Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Mark K. Keohane is affiliated with 1 site of care and 1 medical group
Dr. Keohane's primary practice is Hayti Medical & Diagnostic in Hayti, Missouri. The medical group on file is Malden Family Clinic.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark K. Keohane's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keohane practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hayti Medical & Diagnostic | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark K. Keohane is one of 417 orthopedic surgeons in Missouri
Orthopaedic surgery is Dr. Keohane's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Keohane is licensed in Missouri.
Specialties and state licenses
- Orthopaedic surgery, MissouriPrimary
Orthopedic surgeons near Dr. Keohane
Counts of orthopedic surgeons 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
Dr. Mark K. Keohane's patients have a median age of 86
Across all payers, Dmand AI patient panel data puts Dr. Keohane's median patient age at 86, with 100% women.
Dr. Keohane's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 86
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
How Dr. Mark K. Keohane takes part in Medicare
Dr. Keohane 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)
Dr. Mark K. Keohane received $30 in industry payments from 2016 to 2020
CMS Open Payments shows 2 general payments to Dr. Keohane from 2 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. DePuy Synthes Sales Inc. paid the most, $19.
General payments to Dr. Keohane by program year, 2016 to 2020
Companies that paid Dr. Keohane the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark K. Keohane graduated from Saint Louis University School of Medicine
Dr. Keohane graduated from Saint Louis University School of Medicine in 1971.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark K. Keohane'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 | NPPES NPI Registry (CMS) (opens in a new tab)Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Dr. Mark K. Keohane
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark K. Keohane's NPI number?
Dr. Mark K. Keohane's NPI number is 1710980750. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark K. Keohane?
Dr. Mark K. Keohane is an orthopedic surgeon in O Fallon, Missouri. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Mark K. Keohane practice?
Dr. Keohane practices at 223 S 3rd St, Hayti, MO 63851-1617. Dr. Keohane also practices at 9323 Phoenix Village Pkwy, O Fallon, MO 63366-4281. Dr. Keohane's primary practice is Hayti Medical & Diagnostic in Hayti, Missouri.
What is Dr. Mark K. Keohane's office phone number?
The practice phone on file for Dr. Keohane is (573) 717-1072.
What is Dr. Mark K. Keohane's medical license number?
Dr. Keohane holds Missouri license 34653.
What medical group is Dr. Mark K. Keohane part of?
Dr. Keohane is linked to Malden Family Clinic.
Does Dr. Mark K. Keohane accept Medicare?
Yes. CMS lists Dr. Keohane as accepting Medicare assignment.
Where did Dr. Mark K. Keohane go to medical school?
Dr. Keohane graduated from Saint Louis University School of Medicine in 1971.
Has Dr. Mark K. Keohane received payments from drug or device companies?
CMS Open Payments shows $30 in general payments to Dr. Keohane from 2 companies from 2016 to 2020. The largest total came from DePuy Synthes Sales Inc.
How long has Dr. Mark K. Keohane been practicing?
Dr. Keohane graduated from medical school in 1971, 55 years ago.
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