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Dr. Gregory Evan Koval, MD
NPI1205356367PAC ID4587938048
- Medicare services, 2024
- 60
- Medicare patients, 2024
- 66
- Part D claims, 2022
- 11
- Publications
- 1
- MIPS score, 2024
- 99
- Practice address
- 2412 Cuming St, Omaha, NE 68131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CHI Health University Campus Emergency Department - Emergency Department - HOPD
Acute Care Hospital outpatient department · Omaha, Nebraska
Find Dr. Koval'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. Gregory Evan Koval is a general surgeon in Omaha, Nebraska
Dr. Koval practices at CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska.
Dr. Koval's NPI, 1205356367, was assigned on June 20, 2017. Dr. Koval graduated from Indiana University School of Medicine in 2017. Dr. Koval holds Nebraska license 36434.
NPI and contact details
- NPI
- 1205356367NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587938048
- NPI enumeration date
- June 20, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- 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. Gregory Evan Koval practices at CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska
Dr. Koval's primary practice is CHI Health University Campus Emergency Department - Emergency Department - HOPD, at 2412 Cuming St, Omaha, NE 68131.
- CHI Health University Campus Emergency Department - Emergency Department - HOPD2412 Cuming St, Omaha, NE 68131
Source: Dmand AI Affiliation Data
Dr. Gregory Evan Koval is affiliated with 7 sites of care and 1 medical group
Dr. Koval's primary practice is CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska. Dr. Koval is also affiliated with CHI Health Creighton University Medical Center - Bergan Mercy. The medical group on file is CHI Health Clinic. Dmand AI also links Dr. Koval to 4 more hospitals and 1 group practice or clinic, each named with a free account.
CHI Health University Campus Emergency Department - Emergency Department - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Evan Koval's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koval practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHI Health University Campus Emergency Department - Emergency Department - HOPD | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Evan Koval is one of 193 general surgeons in Nebraska
Surgery is Dr. Koval's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Koval is licensed in Nebraska.
Specialties and state licenses
- Surgery, NebraskaPrimary
General surgeons near Dr. Koval
Counts of general 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. Gregory Evan Koval billed Medicare for 60 services in 2024
CMS data shows 60 Medicare services from Dr. Koval across 3 procedure codes in 2024, for 66 Medicare patients. Medicare paid $2,762 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202460
Medicare patients66
Paid by Medicare$2,762
Procedure codes3
Dr. Koval compared with the Nebraska median for general surgeons, 2024
- Dr. Koval
- Nebraska median
- Medicare services
- 60vs 23875% below
- Medicare patients
- 66vs 17061% below
- Part D claims
- 11vs 3063% below
Medians across 178 general surgeons in Nebraska with Dmand AI profiles that report each measure.
Dr. Koval'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. Koval?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koval and other general surgeons in Nebraska.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Evan Koval treated 66 Medicare patients in 2024, average age 81
CMS counts 66 Medicare patients who saw Dr. Koval in 2024. The largest group is 75 to 84, with 24 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Koval's median patient age at 62, with 47% women.
Medicare patients, 202466
Average age81
Average risk score1.44
Dr. Koval's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Koval's Medicare patients by sex, 2024
- Women4162%
- Men2538%
Chronic conditions among Dr. Koval's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Ischemic heart disease48%
- Chronic kidney disease47%
- Atrial fibrillation44%
- Diabetes39%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koval'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
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Evan Koval wrote 11 Medicare Part D claims in 2022
In 2022, Dr. Koval wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $63 in total drug cost. In 2021, CMS named 34 claims across 2 drugs.
Part D claims, 202211
Drugs named by CMS1
Total drug cost$63
Dr. Koval's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 342022: 1168%
Drugs named by CMS: 1 in 2022, 2 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Gregory Evan Koval scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Koval for performance year 2024, reported through an alternative payment model (APM). Dr. Koval accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Koval's MIPS scores, performance year 2024
- 99of 100Final score
- 90.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Gregory Evan Koval has 1 publication on record
Dmand AI links 1 paper to Dr. Koval in 2024. Dr. Koval's most frequent co-author is Andrew James Kamien, MD.
Papers1
Dr. Koval's most frequent co-authors
Recent publications by Dr. Koval
See who Dr. Koval researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Koval works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory Evan Koval received $1,454 in industry payments from 2024 to 2025
CMS Open Payments shows 11 general payments to Dr. Koval from 4 drug and device companies from 2024 to 2025. Travel and lodging make up the largest share, 70% of the total. Medical Device Business Services, Inc. paid the most, $1,106.
General payments to Dr. Koval by program year, 2024 to 2025
General payments to Dr. Koval by kind, 2024 to 2025
$1.5Kin total
- Travel and lodging$1,01770%
- Food and beverage$43630%
Companies that paid Dr. Koval the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Evan Koval graduated from Indiana University School of Medicine
Dr. Koval graduated from Indiana University School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Evan Koval'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 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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Gregory Evan Koval
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. Gregory Evan Koval's NPI number?
Dr. Gregory Evan Koval's NPI number is 1205356367. It was assigned on June 20, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Evan Koval?
Dr. Gregory Evan Koval is a general surgeon in Omaha, Nebraska. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Gregory Evan Koval practice?
Dr. Koval practices at 2412 Cuming St, Omaha, NE 68131. Dr. Koval's primary practice is CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska. Dmand AI also links Dr. Koval to 4 hospitals and 1 group practice or clinic.
What is Dr. Gregory Evan Koval's medical license number?
Dr. Koval holds Nebraska license 36434.
Which hospitals is Dr. Gregory Evan Koval affiliated with?
Dr. Koval is affiliated with CHI Health Creighton University Medical Center - Bergan Mercy. Dmand AI links Dr. Koval to 4 more hospitals.
What medical group is Dr. Gregory Evan Koval part of?
Dr. Koval is linked to CHI Health Clinic.
Does Dr. Gregory Evan Koval accept Medicare?
Yes. CMS data shows Dr. Koval billed Medicare for 60 services in 2024, and Dr. Koval accepts Medicare assignment.
What is Dr. Gregory Evan Koval's MIPS score?
Dr. Koval's MIPS final score for performance year 2024 is 99 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Gregory Evan Koval see?
CMS counts 66 Medicare patients who saw Dr. Koval in 2024, with an average age of 81.
What services does Dr. Gregory Evan Koval bill to Medicare?
In 2024, Dr. Koval's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99232) and hospital inpatient care (99221).
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Where did Dr. Gregory Evan Koval go to medical school?
Dr. Koval graduated from Indiana University School of Medicine in 2017.
What drugs does Dr. Gregory Evan Koval prescribe most?
In 2022 Medicare Part D data, Dr. Koval's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Gregory Evan Koval received payments from drug or device companies?
CMS Open Payments shows $1,454 in general payments to Dr. Koval from 4 companies from 2024 to 2025. The largest total came from Medical Device Business Services, Inc.
How long has Dr. Gregory Evan Koval been practicing?
Dr. Koval graduated from medical school in 2017, 9 years ago.
Does Dr. Gregory Evan Koval do research?
Dmand AI links 1 publication to Dr. Koval.
Who does Dr. Gregory Evan Koval publish with?
Dr. Koval's most frequent co-authors are Andrew James Kamien, MD (1 shared paper).
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