Mark Leroy Davis, OD
- Medicare patients, 2024
- 20
- Industry payments
- $17
- Affiliated sites
- 3
- Medical groups
- 3
- State license
- 1
- Practice address
- 421 E Merle Hibbs Blvd, Marshalltown, IA 50158
- Practice phone
- Call (515) 239-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
McFarland Clinic
Marshalltown, Iowa
Find Mark Davis' 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.
Mark Leroy Davis is an optometrist in Marshalltown, Iowa
Mark Davis practices at McFarland Clinic in Marshalltown, Iowa.
Mark Davis' NPI, 1881666014, was assigned on February 2, 2006. Mark Davis graduated from Illinois College of Optometry at Chicago in 1989. Mark Davis holds Iowa license 1888.
- NPI
- 1881666014NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446250658
- NPI enumeration date
- February 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (515) 239-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Leroy Davis practices at McFarland Clinic in Marshalltown, Iowa
Mark Davis' primary practice is McFarland Clinic, at 421 E Merle Hibbs Blvd, Marshalltown, IA 50158 in Marshall County. The practice phone is (515) 239-4400.
- McFarland Clinic421 E Merle Hibbs Blvd, Marshalltown, IA 50158 · Marshall CountyPhone(515) 239-4400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mark Leroy Davis is affiliated with 4 sites of care and 3 medical groups
Mark Davis' primary practice is McFarland Clinic in Marshalltown, Iowa. Dmand AI also links Mark Davis to 3 group practices and clinics and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mark Leroy Davis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Davis practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McFarland Clinic | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark Leroy Davis is one of 501 optometrists in Iowa
Optometrist is Mark Davis' primary specialty in the NPI Registry, under taxonomy code 152W00000X. Mark Davis is licensed in Iowa.
Specialties and state licenses
- Optometrist, IowaPrimary
Optometrists near Mark Davis
Counts of optometrists 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
Mark Leroy Davis treated 20 Medicare patients in 2024, average age 73
CMS counts 20 Medicare patients who saw Mark Davis in 2024. The largest group is 85 and over, with 0 patients. 75% of them have high cholesterol, and 55% have high blood pressure. Their average risk score is 0.78, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Davis' median patient age at 69, with 54% women.
Mark Davis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Mark Davis' Medicare patients, 2024
- High cholesterol75%
- High blood pressure55%
Share of Medicare patients with each condition. A patient can have several.
Mark Davis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Mark Leroy Davis takes part in Medicare
Mark Davis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
Mark Leroy Davis received $17 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mark Davis from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $17.
Companies that paid Mark Davis the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark Leroy Davis graduated from Illinois College of Optometry at Chicago
Mark Davis graduated from Illinois College of Optometry at Chicago in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark Leroy Davis'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)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 Mark Leroy Davis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Leroy Davis' NPI number?
Mark Leroy Davis' NPI number is 1881666014. It was assigned on February 2, 2006, and it is active in the NPI Registry.
What does Mark Leroy Davis specialize in?
Mark Leroy Davis is an optometrist in Marshalltown, Iowa. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Mark Leroy Davis practice?
Mark Davis practices at 421 E Merle Hibbs Blvd, Marshalltown, IA 50158. Mark Davis' primary practice is McFarland Clinic in Marshalltown, Iowa. Dmand AI also links Mark Davis to 3 group practices and clinics and 3 medical groups.
What is Mark Leroy Davis' office phone number?
The practice phone on file for Mark Davis is (515) 239-4400.
What is Mark Leroy Davis' medical license number?
Mark Davis holds Iowa license 1888.
Does Mark Leroy Davis accept Medicare?
Yes. CMS lists Mark Davis as accepting Medicare assignment.
How many Medicare patients does Mark Leroy Davis see?
CMS counts 20 Medicare patients who saw Mark Davis in 2024, with an average age of 73.
Where did Mark Leroy Davis go to medical school?
Mark Davis graduated from Illinois College of Optometry at Chicago in 1989.
Has Mark Leroy Davis received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Mark Davis from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Mark Leroy Davis been practicing?
Mark Davis graduated from medical school in 1989, 37 years ago.
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