Dr. Oksana I. Aleksenko, MD

  • Rapid City, SD
  • Gastroenterologist
NPI1043439631PAC ID8527184357
Medicare services, 2024
668
Medicare patients, 2024
458
Part D claims, 2024
800
Hospital affiliations
3
Industry payments
$5,957
Practice address
2820 Mt Rushmore Road, Rapid City, SD 57701
Practice phone
Call (605) 721-8121
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

The Endoscopy Center - Rapid City

Surgery Center - Medicare-Certified · Rapid City, South Dakota

See all 7 affiliations

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Dr. Oksana I. Aleksenko is a gastroenterologist in Rapid City, South Dakota

Dr. Aleksenko practices at The Endoscopy Center - Rapid City in Rapid City, South Dakota.

Dr. Aleksenko's NPI, 1043439631, was assigned on April 24, 2007. Dr. Aleksenko holds North Dakota license PT 12963.

NPI and contact details
Medicare PAC ID
8527184357
NPI enumeration date
April 24, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(605) 721-8121
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
55
Medical school graduation
1997

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Oksana I. Aleksenko practices at The Endoscopy Center - Rapid City in Rapid City, South Dakota

Dr. Aleksenko's primary practice is The Endoscopy Center - Rapid City, at 2820 Mt Rushmore Road, Rapid City, SD 57701. The practice phone is (605) 721-8121.

  • The Endoscopy Center - Rapid City
    2820 Mt Rushmore Road, Rapid City, SD 57701Phone(605) 721-8121

Source: Dmand AI Affiliation Data

Dr. Oksana I. Aleksenko is affiliated with 5 sites of care and 2 medical groups

Dr. Aleksenko's primary practice is The Endoscopy Center - Rapid City in Rapid City, South Dakota. Dr. Aleksenko is also affiliated with Monument Health Rapid City Hospital. The medical group on file is Black Hills Surgical Hospital. Dmand AI also links Dr. Aleksenko to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Aleksenko

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Oksana I. Aleksenko's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Aleksenko practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Endoscopy Center - Rapid CityAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Oksana I. Aleksenko is one of 46 gastroenterologists in South Dakota

Gastroenterology is Dr. Aleksenko's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Aleksenko's licenses on file in 3 states: North Dakota, Kansas and South Dakota.

Specialties and state licenses

  • Gastroenterology, North DakotaPrimaryLicense PT 12963 · taxonomy 207RG0100X
  • Internal medicine, KansasLicense 946505 · taxonomy 207R00000X
  • South Dakota licenseLicense 10084

Gastroenterologists near Dr. Aleksenko

Counts of gastroenterologists 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. Oksana I. Aleksenko billed Medicare for 668 services in 2024

CMS data shows 668 Medicare services from Dr. Aleksenko across 13 procedure codes in 2024, for 458 Medicare patients. Medicare paid $89,328 for them.

Medicare services, 2024668
Medicare patients458
Paid by Medicare$89,328
Procedure codes13

Dr. Aleksenko's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 7292024: 49632%
Other services
2023: 752024: 9729%
Lab and pathology
2023: 802024: 5235%
Tests and treatments
2023: 292024: 2321%

Where Dr. Aleksenko's Medicare services took place, 2024

  • In an office9214%
  • In a facility57686%

Dr. Aleksenko compared with the South Dakota median for gastroenterologists, 2024

  • Dr. Aleksenko
  • South Dakota median
Medicare services
668vs 53525% above
Medicare patients
458vs 34832% above
Part D claims
746vs 7056% above

Medians across 43 gastroenterologists in South Dakota with Dmand AI profiles that report each measure.

Dr. Aleksenko'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.

See all procedures by Dr. Aleksenko

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Oksana I. Aleksenko treated 458 Medicare patients in 2024, average age 72

CMS counts 458 Medicare patients who saw Dr. Aleksenko in 2024. The largest group is 65 to 74, with 280 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Aleksenko's median patient age at 62, with 72% women.

Medicare patients, 2024458
Average age72
Average risk score0.95
Also on Medicaid7%

Dr. Aleksenko's Medicare patients by age, 2024

Dr. Aleksenko's Medicare patients by sex, 2024

  • Women32070%
  • Men13830%

Chronic conditions among Dr. Aleksenko's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure67%
  3. Arthritis45%
  4. Diabetes26%
  5. Mood disorders26%
  6. Depression24%
  7. Osteoporosis24%
  8. Anxiety22%

Share of Medicare patients with each condition. A patient can have several.

Dr. Aleksenko's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women72%
  • Men28%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Oksana I. Aleksenko wrote 800 Medicare Part D claims in 2024

In 2024, Dr. Aleksenko wrote 800 Medicare Part D claims for 509 patients. 64% of them were for generic drugs. CMS names the drug for 746 of them, across 5 drugs with 11 or more claims each, at $8,127 in total drug cost. In 2023, CMS named 674 claims across 7 drugs.

Part D claims, 2024800
Drugs named by CMS5
Total drug cost$8,127
Part D patients509

Dr. Aleksenko's Part D claims by kind of drug, 2024

  • Generic515 claims64%
  • Brand-name285 claims36%

Dr. Aleksenko'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6742024: 74611%

Drugs named by CMS: 5 in 2024, 7 in 2023.

See all prescribing by Dr. Aleksenko

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. Oksana I. Aleksenko ranks in the 95th percentile for colonoscopy in Medicare

Dr. Aleksenko accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 231 procedures of colonoscopy by Dr. Aleksenko, more than 95% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Aleksenko ranks in Medicare procedure volume

Colonoscopy
95th percentile231 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
80th percentile117 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Oksana I. Aleksenko received $5,957 in industry payments from 2016 to 2025

CMS Open Payments shows 45 general payments to Dr. Aleksenko from 10 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 87% of the total. Medtronic, Inc. paid the most, $5,291.

General payments to Dr. Aleksenko by program year, 2016 to 2025

General payments to Dr. Aleksenko by kind, 2016 to 2025

$6Kin total
  • Consulting fees$5,20887%
  • Food and beverage$73512%
  • Education$130%

Companies that paid Dr. Aleksenko the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Aleksenko

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Oksana I. Aleksenko's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Oksana I. Aleksenko

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. Oksana I. Aleksenko's NPI number?

Dr. Oksana I. Aleksenko's NPI number is 1043439631. It was assigned on April 24, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Oksana I. Aleksenko?

Dr. Oksana I. Aleksenko is a gastroenterologist in Rapid City, South Dakota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Oksana I. Aleksenko practice?

Dr. Aleksenko practices at 2820 Mt Rushmore Road, Rapid City, SD 57701. Dr. Aleksenko's primary practice is The Endoscopy Center - Rapid City in Rapid City, South Dakota. Dmand AI also links Dr. Aleksenko to 2 hospitals, 1 group practice or clinic and 1 medical group.

What is Dr. Oksana I. Aleksenko's office phone number?

The practice phone on file for Dr. Aleksenko is (605) 721-8121.

What is Dr. Oksana I. Aleksenko's medical license number?

Dr. Aleksenko holds North Dakota license PT 12963, one of the licenses on file in 3 states.

Which states has Dr. Oksana I. Aleksenko been licensed in?

Dmand AI has state licenses on file for Dr. Aleksenko in North Dakota, Kansas and South Dakota.

Which hospitals is Dr. Oksana I. Aleksenko affiliated with?

Dr. Aleksenko is affiliated with Monument Health Rapid City Hospital. Dmand AI links Dr. Aleksenko to 2 more hospitals.

What medical group is Dr. Oksana I. Aleksenko part of?

Dr. Aleksenko is linked to Black Hills Surgical Hospital. Dmand AI links Dr. Aleksenko to 1 more medical group.

Does Dr. Oksana I. Aleksenko accept Medicare?

Yes. CMS data shows Dr. Aleksenko billed Medicare for 668 services in 2024, and Dr. Aleksenko accepts Medicare assignment.

How many Medicare patients does Dr. Oksana I. Aleksenko see?

CMS counts 458 Medicare patients who saw Dr. Aleksenko in 2024, with an average age of 72.

Show 4 more questionsShow fewer questions

What services does Dr. Oksana I. Aleksenko bill to Medicare?

In 2024, Dr. Aleksenko's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (43239) and surgery: digestive system (45380).

What drugs does Dr. Oksana I. Aleksenko prescribe most?

In 2024 Medicare Part D data, Dr. Aleksenko's most prescribed drugs by claims were Ondansetron HCl, Peg-3350 And Electrolytes and Gavilyte-G.

Has Dr. Oksana I. Aleksenko received payments from drug or device companies?

CMS Open Payments shows $5,957 in general payments to Dr. Aleksenko from 10 companies from 2016 to 2025. The largest total came from Medtronic, Inc.

How long has Dr. Oksana I. Aleksenko been practicing?

Dr. Aleksenko graduated from medical school in 1997, 29 years ago.

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