Dr. Zachary Goodwin Keenum, MD
- Medicare services, 2024
- 1,542
- Medicare patients, 2024
- 650
- Part D claims, 2024
- 766
- MIPS score, 2024
- 89
- Hospital affiliations
- 1
- Practice address
- 3101 W 57th St, Sioux Falls, SD 57108
- Practice phone
- Call (605) 371-7150
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Vance Thompson Vision Surgery Center - Sioux Falls
Surgery Center - Medicare-Certified · Sioux Falls, South Dakota
Find Dr. Keenum'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. Zachary Goodwin Keenum is an ophthalmologist in Sioux Falls, South Dakota
Dr. Keenum practices at Vance Thompson Vision Surgery Center - Sioux Falls in Sioux Falls, South Dakota.
Dr. Keenum's NPI, 1639605223, was assigned on May 3, 2017. Dr. Keenum graduated from University of Alabama School of Medicine in 2017. Dr. Keenum holds Texas license T1115.
- NPI
- 1639605223NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012397243
- NPI enumeration date
- May 3, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (605) 371-7150
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary Goodwin Keenum practices at Vance Thompson Vision Surgery Center - Sioux Falls in Sioux Falls, South Dakota
Dr. Keenum's primary practice is Vance Thompson Vision Surgery Center - Sioux Falls, at 3101 W 57th St, Sioux Falls, SD 57108. The practice phone is (605) 371-7150.
- Vance Thompson Vision Surgery Center - Sioux Falls3101 W 57th St, Sioux Falls, SD 57108Phone(605) 371-7150
Source: Dmand AI Affiliation Data
Dr. Zachary Goodwin Keenum is affiliated with 2 sites of care and 1 medical group
Dr. Keenum's primary practice is Vance Thompson Vision Surgery Center - Sioux Falls in Sioux Falls, South Dakota. Dr. Keenum is also affiliated with Avera McKennan Hospital & University Health Center. Dmand AI also links Dr. Keenum to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zachary Goodwin Keenum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keenum practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vance Thompson Vision Surgery Center - Sioux Falls | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary Goodwin Keenum is one of 43 ophthalmologists in South Dakota
Ophthalmology is Dr. Keenum's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Keenum is licensed in Texas.
Specialties and state licenses
- Ophthalmology, TexasPrimary
Ophthalmologists near Dr. Keenum
Counts of ophthalmologists 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. Zachary Goodwin Keenum billed Medicare for 1,542 services in 2024
CMS data shows 1,542 Medicare services from Dr. Keenum across 14 procedure codes in 2024, for 650 Medicare patients. Medicare paid $272,734 for them.
Dr. Keenum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1732024: 530206%
- Tests and treatments
- 2023: 1892024: 509169%
- Surgery
- 2023: 1032024: 503388%
Where Dr. Keenum's Medicare services took place, 2024
- In an office1,08570%
- In a facility45730%
Dr. Keenum compared with the South Dakota median for ophthalmologists, 2024
- Dr. Keenum
- South Dakota median
- Medicare services
- 1,542vs 1,584Close to median
- Medicare patients
- 650vs 6946% below
- Part D claims
- 708vs 3162.2 times
Medians across 51 ophthalmologists in South Dakota with Dmand AI profiles that report each measure.
Dr. Keenum's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Keenum?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Keenum and other ophthalmologists in South Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Goodwin Keenum treated 650 Medicare patients in 2024, average age 74
CMS counts 650 Medicare patients who saw Dr. Keenum in 2024. The largest group is 65 to 74, with 356 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 2% are also on Medicaid. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Keenum's median patient age at 71, with 61% women.
Dr. Keenum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Keenum's Medicare patients by sex, 2024
- Women40262%
- Men24838%
Chronic conditions among Dr. Keenum's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis45%
- Diabetes22%
- Ischemic heart disease22%
- Mood disorders22%
- Anxiety21%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Keenum'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
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary Goodwin Keenum wrote 766 Medicare Part D claims in 2024
In 2024, Dr. Keenum wrote 766 Medicare Part D claims for 444 patients. 93% of them were for generic drugs. CMS names the drug for 708 of them, across 5 drugs with 11 or more claims each, at $14,451 in total drug cost. In 2023, CMS named 437 claims across 8 drugs.
Dr. Keenum's Part D claims by kind of drug, 2024
- Generic715 claims93%
- Brand-name51 claims7%
Dr. Keenum's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Keenum's Part D claims, 2024
- Antibiotics6%48 of 766 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4372024: 70862%
Drugs named by CMS: 5 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Zachary Goodwin Keenum 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 Dr. Keenum for performance year 2024, reported as part of a group. Dr. Keenum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Keenum's MIPS scores, performance year 2024
- 89of 100Final score
- 93.8of 100Quality
- 97of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
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)
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Dr. Zachary Goodwin Keenum received $2,122 in industry payments from 2021 to 2025
CMS Open Payments shows 38 general payments to Dr. Keenum from 13 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 86% of the total. Alcon Laboratories Inc paid the most, $971.
General payments to Dr. Keenum by program year, 2021 to 2025
General payments to Dr. Keenum by kind, 2021 to 2025
- Food and beverage$1,81886%
- Travel and lodging$30414%
Companies that paid Dr. Keenum the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Goodwin Keenum graduated from University of Alabama School of Medicine
Dr. Keenum graduated from University of Alabama School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary Goodwin Keenum'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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 Dr. Zachary Goodwin Keenum
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. Zachary Goodwin Keenum's NPI number?
Dr. Zachary Goodwin Keenum's NPI number is 1639605223. It was assigned on May 3, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Goodwin Keenum?
Dr. Zachary Goodwin Keenum is an ophthalmologist in Sioux Falls, South Dakota. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Zachary Goodwin Keenum practice?
Dr. Keenum practices at 3101 W 57th St, Sioux Falls, SD 57108. Dr. Keenum's primary practice is Vance Thompson Vision Surgery Center - Sioux Falls in Sioux Falls, South Dakota. Dmand AI also links Dr. Keenum to 1 medical group.
What is Dr. Zachary Goodwin Keenum's office phone number?
The practice phone on file for Dr. Keenum is (605) 371-7150.
What is Dr. Zachary Goodwin Keenum's medical license number?
Dr. Keenum holds Texas license T1115.
Which hospitals is Dr. Zachary Goodwin Keenum affiliated with?
Dr. Keenum is affiliated with Avera McKennan Hospital & University Health Center.
Does Dr. Zachary Goodwin Keenum accept Medicare?
Yes. CMS data shows Dr. Keenum billed Medicare for 1,542 services in 2024, and Dr. Keenum accepts Medicare assignment.
What is Dr. Zachary Goodwin Keenum's MIPS score?
Dr. Keenum's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Zachary Goodwin Keenum see?
CMS counts 650 Medicare patients who saw Dr. Keenum in 2024, with an average age of 74.
What services does Dr. Zachary Goodwin Keenum bill to Medicare?
In 2024, Dr. Keenum's most billed Medicare services were eye exam or test (92285), surgery: skin and soft tissue (15823) and office visit, new patient (99204).
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Where did Dr. Zachary Goodwin Keenum go to medical school?
Dr. Keenum graduated from University of Alabama School of Medicine in 2017.
What drugs does Dr. Zachary Goodwin Keenum prescribe most?
In 2024 Medicare Part D data, Dr. Keenum's most prescribed drugs by claims were Erythromycin, Moxifloxacin and Tobramycin-Dexamethasone.
Has Dr. Zachary Goodwin Keenum received payments from drug or device companies?
CMS Open Payments shows $2,122 in general payments to Dr. Keenum from 13 companies from 2021 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Zachary Goodwin Keenum been practicing?
Dr. Keenum graduated from medical school in 2017, 9 years ago.
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