Dr. Gregory L. Barnhill, DO
- Medicare services, 2024
- 1,409
- Medicare patients, 2024
- 299
- Part D claims, 2024
- 325
- Hospital affiliations
- 5
- Industry payments
- $1,175
- Practice address
- 1600 E Evergreen, Cameron, MO 64429
- Practice phone
- Call (816) 632-2101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Barnhill's professional email, personal email and mobile number
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Dr. Gregory L. Barnhill is an orthopedic surgeon in Cameron, Missouri
Dr. Barnhill practices at Cameron Regional Medical Center in Cameron, Missouri, part of Cameron Regional Medical Center.
Dr. Barnhill's NPI, 1053385021, was assigned on February 15, 2006. Dr. Barnhill graduated from R Franklin University of Med & Sci/Chicago Medical School in 1979. Dr. Barnhill holds Missouri license R5A07.
- NPI
- 1053385021NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981766383
- NPI enumeration date
- February 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (816) 632-2101
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory L. Barnhill practices at Cameron Regional Medical Center in Cameron, Missouri
Dr. Barnhill's primary practice is Cameron Regional Medical Center, at 1600 E Evergreen, Cameron, MO 64429 in Clinton County. The practice phone is (816) 632-2101.
- Cameron Regional Medical Center1600 E Evergreen, Cameron, MO 64429 · Clinton CountyPhone(816) 632-2101
Source: Dmand AI Affiliation Data
Dr. Gregory L. Barnhill is affiliated with 6 sites of care and 2 medical groups
Dr. Barnhill's primary practice is Cameron Regional Medical Center in Cameron, Missouri, part of Cameron Regional Medical Center. Dr. Barnhill is also affiliated with NKC Health Hospital. The medical group on file is Lafayette Regional Health Center. Dmand AI also links Dr. Barnhill to 3 more hospitals, 1 group practice or clinic and 1 medical group, 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. Gregory L. Barnhill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barnhill practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cameron Regional Medical Center | Available with a free account |
| +5 more sites 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 Cameron Regional Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory L. Barnhill is one of 417 orthopedic surgeons in Missouri
Orthopaedic surgery is Dr. Barnhill's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Barnhill is licensed in Missouri.
Specialties and state licenses
- Orthopaedic surgery, MissouriPrimary
Orthopedic surgeons near Dr. Barnhill
Counts of orthopedic 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 L. Barnhill billed Medicare for 1,409 services in 2024
CMS data shows 1,409 Medicare services from Dr. Barnhill across 13 procedure codes in 2024, for 299 Medicare patients. Medicare paid $71,670 for them.
Dr. Barnhill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 6382024: 640No change
- Office and hospital visits
- 2023: 3272024: 3394%
- Surgery
- 2023: 2692024: 2478%
- Imaging
- 2023: 2172024: 18316%
Where Dr. Barnhill's Medicare services took place, 2024
- In an office1,07376%
- In a facility33624%
Dr. Barnhill compared with the Missouri median for orthopedic surgeons, 2024
- Dr. Barnhill
- Missouri median
- Medicare services
- 1,409vs 84966% above
- Medicare patients
- 299vs 23129% above
- Part D claims
- 244vs 15656% above
Medians across 414 orthopedic surgeons in Missouri with Dmand AI profiles that report each measure.
Dr. Barnhill'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. Barnhill?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Barnhill and other orthopedic surgeons in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory L. Barnhill treated 299 Medicare patients in 2024, average age 75
CMS counts 299 Medicare patients who saw Dr. Barnhill in 2024. The largest group is 65 to 74, with 135 patients. 75% of them have arthritis, and 75% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Barnhill's median patient age at 71, with 57% women.
Dr. Barnhill's Medicare patients by age, 2024
Dr. Barnhill's Medicare patients by sex, 2024
- Women18161%
- Men11839%
Chronic conditions among Dr. Barnhill's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol71%
- Ischemic heart disease30%
- Mood disorders29%
- Diabetes28%
- Anxiety27%
- Depression27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barnhill'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
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory L. Barnhill wrote 325 Medicare Part D claims in 2024
In 2024, Dr. Barnhill wrote 325 Medicare Part D claims for 148 patients. 97% of them were for generic drugs. CMS names the drug for 244 of them, across 5 drugs with 11 or more claims each, at $1,613 in total drug cost. In 2023, CMS named 264 claims across 6 drugs.
Dr. Barnhill's Part D claims by kind of drug, 2024
- Generic316 claims97%
- Brand-name and other9 claims3%
Dr. Barnhill'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. Barnhill's Part D claims, 2024
- Opioids55%179 of 325 claims
- Antibiotics16%52 of 325 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: 2642024: 2448%
Drugs named by CMS: 5 in 2024, 6 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. Gregory L. Barnhill ranks in the 63rd percentile for knee replacement in Medicare
Dr. Barnhill accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 29 procedures of knee replacement by Dr. Barnhill, more than 63% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Barnhill ranks in Medicare procedure volume
- Knee replacement
- 63rd percentile29 procedures
- Hip replacement
- 62nd percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 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 limb (arm) arthroscopy (minimally invasive joint repair): 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. Gregory L. Barnhill received $1,175 in industry payments from 2016 to 2025
CMS Open Payments shows 40 general payments to Dr. Barnhill from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Stryker Corporation paid the most, $281.
General payments to Dr. Barnhill by program year, 2016 to 2025
General payments to Dr. Barnhill by kind, 2016 to 2025
- Food and beverage$1,16099%
- Education$141%
Companies that paid Dr. Barnhill the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory L. Barnhill graduated from R Franklin University of Med & Sci/Chicago Medical School
Dr. Barnhill graduated from R Franklin University of Med & Sci/Chicago Medical School in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory L. Barnhill'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. Gregory L. Barnhill
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 L. Barnhill's NPI number?
Dr. Gregory L. Barnhill's NPI number is 1053385021. It was assigned on February 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory L. Barnhill?
Dr. Gregory L. Barnhill is an orthopedic surgeon in Cameron, Missouri. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Gregory L. Barnhill practice?
Dr. Barnhill practices at 1600 E Evergreen, Cameron, MO 64429. Dr. Barnhill's primary practice is Cameron Regional Medical Center in Cameron, Missouri, part of Cameron Regional Medical Center. Dmand AI also links Dr. Barnhill to 3 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Gregory L. Barnhill's office phone number?
The practice phone on file for Dr. Barnhill is (816) 632-2101.
What is Dr. Gregory L. Barnhill's medical license number?
Dr. Barnhill holds Missouri license R5A07.
Which hospitals is Dr. Gregory L. Barnhill affiliated with?
Dr. Barnhill practices at Cameron Regional Medical Center in Cameron, Missouri. Dr. Barnhill is also affiliated with NKC Health Hospital. Dmand AI links Dr. Barnhill to 3 more hospitals.
What medical group is Dr. Gregory L. Barnhill part of?
Dr. Barnhill is linked to Lafayette Regional Health Center. Dmand AI links Dr. Barnhill to 1 more medical group.
Does Dr. Gregory L. Barnhill accept Medicare?
Yes. CMS data shows Dr. Barnhill billed Medicare for 1,409 services in 2024, and Dr. Barnhill accepts Medicare assignment.
How many Medicare patients does Dr. Gregory L. Barnhill see?
CMS counts 299 Medicare patients who saw Dr. Barnhill in 2024, with an average age of 75.
What services does Dr. Gregory L. Barnhill bill to Medicare?
In 2024, Dr. Barnhill's most billed Medicare services were injected or infused drug (J3301), surgery: bones and joints (20610) and office visit, established patient (99213).
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Where did Dr. Gregory L. Barnhill go to medical school?
Dr. Barnhill graduated from R Franklin University of Med & Sci/Chicago Medical School in 1979.
What drugs does Dr. Gregory L. Barnhill prescribe most?
In 2024 Medicare Part D data, Dr. Barnhill's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Tramadol HCl and Meloxicam.
Has Dr. Gregory L. Barnhill received payments from drug or device companies?
CMS Open Payments shows $1,175 in general payments to Dr. Barnhill from 15 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Gregory L. Barnhill been practicing?
Dr. Barnhill graduated from medical school in 1979, 47 years ago.
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