Dr. Greg E. Halko, MD
- Medicare services, 2024
- 1,769
- Medicare patients, 2024
- 388
- Part D claims, 2024
- 297
- Hospital affiliations
- 1
- Industry payments
- $1,564
- Practice address
- 4300 West Memorial Road, Oklahoma City, OK 73120
- Practice phone
- Call (405) 755-1515
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Halko'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. Greg E. Halko is an orthopaedic hand surgery physician in Oklahoma City, Oklahoma
Dr. Halko practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy.
Dr. Halko's NPI, 1124114764, was assigned on October 4, 2006. Dr. Halko graduated from University of Oklahoma College of Medicine in 1999. Dr. Halko holds Oklahoma license 24394.
- NPI
- 1124114764NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981631397
- NPI enumeration date
- October 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (405) 755-1515
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Greg E. Halko practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma
Dr. Halko's primary practice is Mercy Hospital Oklahoma City, at 4300 West Memorial Road, Oklahoma City, OK 73120 in Oklahoma County. The practice phone is (405) 755-1515.
- Mercy Hospital Oklahoma City4300 West Memorial Road, Oklahoma City, OK 73120 · Oklahoma CountyPhone(405) 755-1515
Source: Dmand AI Affiliation Data
Dr. Greg E. Halko is affiliated with 4 sites of care and 3 medical groups
Dr. Halko's primary practice is Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy. The medical group on file is Mercy Clinic Oklahoma Communities. Dmand AI also links Dr. Halko to 3 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Greg E. Halko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Halko practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Oklahoma City | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Greg E. Halko is one of 26 orthopaedic hand surgery physicians in Oklahoma
Hand surgery is Dr. Halko's primary specialty in the NPI Registry, under taxonomy code 207XS0106X. Dr. Halko is licensed in Oklahoma.
Specialties and state licenses
- Orthopaedic hand surgery, OklahomaPrimary
Orthopaedic hand surgery physicians near Dr. Halko
Counts of orthopaedic hand surgery physicians 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. Greg E. Halko billed Medicare for 1,769 services in 2024
CMS data shows 1,769 Medicare services from Dr. Halko across 20 procedure codes in 2024, for 388 Medicare patients. Medicare paid $87,268 for them.
Dr. Halko's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5432024: 64018%
- Imaging
- 2023: 2622024: 39551%
- Surgery
- 2023: 2872024: 39036%
- Drugs given in the office
- 2023: 2332024: 30129%
- Other services
- 2023: 222024: 4395%
Where Dr. Halko's Medicare services took place, 2024
- In an office1,69396%
- In a facility764%
Dr. Halko compared with the Oklahoma median for orthopaedic hand surgery physicians, 2024
- Dr. Halko
- Oklahoma median
- Medicare services
- 1,769vs 1,19348% above
- Medicare patients
- 388vs 33615% above
- Part D claims
- 266vs 19834% above
Medians across 25 orthopaedic hand surgery physicians in Oklahoma with Dmand AI profiles that report each measure.
Dr. Halko'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. Halko?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Halko and other orthopaedic hand surgery physicians in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Greg E. Halko treated 388 Medicare patients in 2024, average age 73
CMS counts 388 Medicare patients who saw Dr. Halko in 2024. The largest group is 65 to 74, with 204 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Halko's median patient age at 67, with 63% women.
Dr. Halko's Medicare patients by age, 2024
Dr. Halko's Medicare patients by sex, 2024
- Women23360%
- Men15540%
Chronic conditions among Dr. Halko's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Ischemic heart disease36%
- Diabetes32%
- Chronic kidney disease31%
- Mood disorders29%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Halko's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women63%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Greg E. Halko wrote 297 Medicare Part D claims in 2024
In 2024, Dr. Halko wrote 297 Medicare Part D claims for 179 patients. 100% of them were for generic drugs. CMS names the drug for 266 of them, across 6 drugs with 11 or more claims each, at $2,068 in total drug cost. In 2023, CMS named 157 claims across 3 drugs.
Dr. Halko'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. Halko's Part D claims, 2024
- Opioids78%232 of 297 claims
- Antibiotics6%18 of 297 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: 1572024: 26669%
Drugs named by CMS: 6 in 2024, 3 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. Greg E. Halko ranks in the 83rd percentile for upper limb (arm) arthroscopy (minimally invasive joint repair) in Medicare
Dr. Halko accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 43 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Halko, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Halko ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 83rd percentile43 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of nail tissue: 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)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Greg E. Halko received $1,564 in industry payments from 2018 to 2024
CMS Open Payments shows 22 general payments to Dr. Halko from 14 drug and device companies from 2018 to 2024. Education make up the largest share, 77% of the total. Pylant Medical paid the most, $1,213.
General payments to Dr. Halko by program year, 2018 to 2024
General payments to Dr. Halko by kind, 2018 to 2024
- Education$1,20077%
- Food and beverage$36423%
Companies that paid Dr. Halko the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Greg E. Halko graduated from University of Oklahoma College of Medicine
Dr. Halko graduated from University of Oklahoma College of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Greg E. Halko'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)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. Greg E. Halko
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. Greg E. Halko's NPI number?
Dr. Greg E. Halko's NPI number is 1124114764. It was assigned on October 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Greg E. Halko?
Dr. Greg E. Halko is an orthopaedic hand surgery physician in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Orthopaedic Hand Surgery Physician (taxonomy code 207XS0106X).
Where does Dr. Greg E. Halko practice?
Dr. Halko practices at 4300 West Memorial Road, Oklahoma City, OK 73120. Dr. Halko's primary practice is Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy. Dmand AI also links Dr. Halko to 3 group practices and clinics and 2 medical groups.
What is Dr. Greg E. Halko's office phone number?
The practice phone on file for Dr. Halko is (405) 755-1515.
What is Dr. Greg E. Halko's medical license number?
Dr. Halko holds Oklahoma license 24394.
Which hospitals is Dr. Greg E. Halko affiliated with?
Dr. Halko practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma.
What medical group is Dr. Greg E. Halko part of?
Dr. Halko is linked to Mercy Clinic Oklahoma Communities. Dmand AI links Dr. Halko to 2 more medical groups.
Does Dr. Greg E. Halko accept Medicare?
Yes. CMS data shows Dr. Halko billed Medicare for 1,769 services in 2024, and Dr. Halko accepts Medicare assignment.
How many Medicare patients does Dr. Greg E. Halko see?
CMS counts 388 Medicare patients who saw Dr. Halko in 2024, with an average age of 73.
What services does Dr. Greg E. Halko bill to Medicare?
In 2024, Dr. Halko's most billed Medicare services were office visit, established patient (99213), injected or infused drug (J0702) and diagnostic imaging (73110).
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Where did Dr. Greg E. Halko go to medical school?
Dr. Halko graduated from University of Oklahoma College of Medicine in 1999.
What drugs does Dr. Greg E. Halko prescribe most?
In 2024 Medicare Part D data, Dr. Halko's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen and Ondansetron HCl.
Has Dr. Greg E. Halko received payments from drug or device companies?
CMS Open Payments shows $1,564 in general payments to Dr. Halko from 14 companies from 2018 to 2024. The largest total came from Pylant Medical.
How long has Dr. Greg E. Halko been practicing?
Dr. Halko graduated from medical school in 1999, 27 years ago.
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