Mark Alan Altfillisch, OD
- Medicare patients, 2024
- 713
- Part D claims, 2024
- 599
- MIPS score, 2024
- 89
- Industry payments
- $36
- Affiliated sites
- 1
- Practice address
- 224 E Main St, Ottumwa, IA 52501
- Practice phone
- Call (641) 684-5463
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dr J. Brent Altfillisch, O.D.
Ottumwa, Iowa
Find Mark Altfillisch'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.
Mark Alan Altfillisch is an optometrist in Ottumwa, Iowa
Mark Altfillisch practices at Dr J. Brent Altfillisch, O.D. in Ottumwa, Iowa.
Mark Altfillisch's NPI, 1093814014, was assigned on September 22, 2006. Mark Altfillisch graduated from Southern College of Optometry in 1992. Mark Altfillisch holds Iowa license 1969.
- NPI
- 1093814014NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567596331
- NPI enumeration date
- September 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (641) 684-5463
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Alan Altfillisch practices at Dr J. Brent Altfillisch, O.D. in Ottumwa, Iowa
Mark Altfillisch's primary practice is Dr J. Brent Altfillisch, O.D., at 224 E Main St, Ottumwa, IA 52501 in Wapello County. The practice phone is (641) 684-5463.
- Dr J. Brent Altfillisch, O.D.224 E Main St, Ottumwa, IA 52501 · Wapello CountyPhone(641) 684-5463
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mark Alan Altfillisch is affiliated with 2 sites of care and 1 medical group
Mark Altfillisch's primary practice is Dr J. Brent Altfillisch, O.D. in Ottumwa, Iowa. Dmand AI also links Mark Altfillisch to 1 group practice or clinic and 1 medical group, 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 Alan Altfillisch's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Altfillisch practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr J. Brent Altfillisch, O.D. | Available with a free account |
| +1 more site and 1 medical group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Mark Alan Altfillisch is one of 501 optometrists in Iowa
Optometrist is Mark Altfillisch's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Mark Altfillisch is licensed in Iowa.
Specialties and state licenses
- Optometrist, IowaPrimary
Optometrists near Mark Altfillisch
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 Alan Altfillisch treated 713 Medicare patients in 2024, average age 75
CMS counts 713 Medicare patients who saw Mark Altfillisch in 2024. The largest group is 65 to 74, with 380 patients. 69% of them have high blood pressure, and 69% have high cholesterol. 3% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mark Altfillisch's median patient age at 71, with 58% women.
Mark Altfillisch's Medicare patients by age, 2024
Mark Altfillisch's Medicare patients by sex, 2024
- Women43060%
- Men28340%
Chronic conditions among Mark Altfillisch's Medicare patients, 2024
- High blood pressure69%
- High cholesterol69%
- Arthritis40%
- Diabetes25%
- Ischemic heart disease19%
- Anxiety15%
- Atrial fibrillation15%
- Chronic kidney disease15%
Share of Medicare patients with each condition. A patient can have several.
Mark Altfillisch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark Alan Altfillisch wrote 599 Medicare Part D claims in 2024
In 2024, Mark Altfillisch wrote 599 Medicare Part D claims for 136 patients. 77% of them were for generic drugs.
Mark Altfillisch's Part D claims by kind of drug, 2024
- Generic459 claims77%
- Brand-name140 claims23%
Drug classes CMS tracks in Mark Altfillisch's Part D claims, 2024
- Antibiotics2%14 of 599 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
Mark Alan Altfillisch scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Mark Altfillisch for performance year 2024, reported individually. Mark Altfillisch accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 124 procedures of cataract surgery by Mark Altfillisch, more than 77% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Mark Altfillisch's MIPS scores, performance year 2024
- 89of 100Final score
- 77.2of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Mark Altfillisch ranks in Medicare procedure volume
- Cataract surgery
- 77th percentile124 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (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.
Mark Alan Altfillisch received $36 in industry payments in 2025
CMS Open Payments shows 2 general payments to Mark Altfillisch 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, $19.
Companies that paid Mark Altfillisch 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 Alan Altfillisch graduated from Southern College of Optometry
Mark Altfillisch graduated from Southern College of Optometry in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark Alan Altfillisch'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) |
| 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)Clinician Public Reporting: Overall MIPS Performance (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 Alan Altfillisch
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 Alan Altfillisch's NPI number?
Mark Alan Altfillisch's NPI number is 1093814014. It was assigned on September 22, 2006, and it is active in the NPI Registry.
What does Mark Alan Altfillisch specialize in?
Mark Alan Altfillisch is an optometrist in Ottumwa, Iowa. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Mark Alan Altfillisch practice?
Mark Altfillisch practices at 224 E Main St, Ottumwa, IA 52501. Mark Altfillisch's primary practice is Dr J. Brent Altfillisch, O.D. in Ottumwa, Iowa. Dmand AI also links Mark Altfillisch to 1 group practice or clinic and 1 medical group.
What is Mark Alan Altfillisch's office phone number?
The practice phone on file for Mark Altfillisch is (641) 684-5463.
What is Mark Alan Altfillisch's medical license number?
Mark Altfillisch holds Iowa license 1969.
Does Mark Alan Altfillisch accept Medicare?
Yes. CMS lists Mark Altfillisch as accepting Medicare assignment.
What is Mark Alan Altfillisch's MIPS score?
Mark Altfillisch's MIPS final score for performance year 2024 is 89 out of 100, reported individually.
How many Medicare patients does Mark Alan Altfillisch see?
CMS counts 713 Medicare patients who saw Mark Altfillisch in 2024, with an average age of 75.
Where did Mark Alan Altfillisch go to medical school?
Mark Altfillisch graduated from Southern College of Optometry in 1992.
Has Mark Alan Altfillisch received payments from drug or device companies?
CMS Open Payments shows $36 in general payments to Mark Altfillisch from 2 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Mark Alan Altfillisch been practicing?
Mark Altfillisch graduated from medical school in 1992, 34 years ago.
Selling to optometrist practices?
See optometrists in Iowa by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card