Dr. Robert T. Buchanan, MD
- Medicare services, 2024
- 17
- Medicare patients, 2026
- 45
- Part D claims, 2026
- 47
- Hospital affiliations
- 1
- Industry payments
- $209
- Practice address
- 2220 Iowa Street, Chickasha, OK 73018
- Practice phone
- Call (405) 224-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Buchanan'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. Robert T. Buchanan is a general surgeon in Chickasha, Oklahoma
Dr. Buchanan practices at Grady Memorial Hospital in Chickasha, Oklahoma, part of Grady Memorial Hospital.
Dr. Buchanan's NPI, 1174513774, was assigned on October 25, 2005. Dr. Buchanan graduated from University of Texas Southwestern Medical School at Dallas in 1983. Dr. Buchanan holds Oklahoma license 37515.
- NPI
- 1174513774NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800839507
- NPI enumeration date
- October 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (405) 224-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert T. Buchanan practices at Grady Memorial Hospital in Chickasha, Oklahoma
Dr. Buchanan's primary practice is Grady Memorial Hospital, at 2220 Iowa Street, Chickasha, OK 73018 in Grady County. The practice phone is (405) 224-2300.
- Grady Memorial Hospital2220 Iowa Street, Chickasha, OK 73018 · Grady CountyPhone(405) 224-2300
Source: Dmand AI Affiliation Data
Dr. Robert T. Buchanan is affiliated with 3 sites of care and 1 medical group
Dr. Buchanan's primary practice is Grady Memorial Hospital in Chickasha, Oklahoma, part of Grady Memorial Hospital. The medical group on file is Five Oaks Medical Group. Dmand AI also links Dr. Buchanan to 1 more breast imaging center and 1 rural health clinic, 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. Robert T. Buchanan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Buchanan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Grady Memorial Hospital | Available with a free account |
| +2 more affiliated sites | 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 Grady Memorial Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert T. Buchanan is one of 316 general surgeons in Oklahoma
Surgery is Dr. Buchanan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Buchanan is licensed in Oklahoma.
Specialties and state licenses
- Surgery, OklahomaPrimary
General surgeons near Dr. Buchanan
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. Robert T. Buchanan billed Medicare for 17 services in 2024
CMS data shows 17 Medicare services from Dr. Buchanan across 1 procedure code in 2024, all of them office visits, for 45 Medicare patients. Medicare paid $1,850 for them. Every service was in an office.
Dr. Buchanan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 172024: 17No change
Dr. Buchanan compared with the Oklahoma median for general surgeons, 2024
- Dr. Buchanan
- Oklahoma median
- Medicare services
- 17vs 19091% below
- Medicare patients
- 45vs 14569% below
- Part D claims
- 34vs 6144% below
Medians across 312 general surgeons in Oklahoma with Dmand AI profiles that report each measure.
Dr. Buchanan'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Buchanan and other general surgeons in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert T. Buchanan treated 45 Medicare patients in 2026, average age 76
CMS counts 45 Medicare patients who saw Dr. Buchanan in 2026. The largest group is 65 to 74, with 20 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Buchanan's median patient age at 57, with 54% women.
Dr. Buchanan's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Buchanan's Medicare patients by sex, 2026
- Women2556%
- Men2044%
Chronic conditions among Dr. Buchanan's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Diabetes40%
- Mood disorders40%
- Depression36%
- COPD33%
- Ischemic heart disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Buchanan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women54%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Robert T. Buchanan wrote 47 Medicare Part D claims in 2026
In 2026, Dr. Buchanan wrote 47 Medicare Part D claims for 33 patients. 77% of them were for generic drugs. CMS names the drug for 34 of them, across 2 drugs with 11 or more claims each, at $1,512 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Buchanan's Part D claims by kind of drug, 2026
- Generic36 claims77%
- Brand-name11 claims23%
Dr. Buchanan'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. Buchanan's Part D claims, 2026
- Opioids32%15 of 47 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 132024: 34162%
Drugs named by CMS: 2 in 2024, 1 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. Robert T. Buchanan takes part in Medicare
Dr. Buchanan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 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); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert T. Buchanan received $209 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Buchanan from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $53.
General payments to Dr. Buchanan by program year, 2016 to 2025
Companies that paid Dr. Buchanan 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. Robert T. Buchanan graduated from University of Texas Southwestern Medical School at Dallas
Dr. Buchanan graduated from University of Texas Southwestern Medical School at Dallas in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert T. Buchanan'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. Robert T. Buchanan
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. Robert T. Buchanan's NPI number?
Dr. Robert T. Buchanan's NPI number is 1174513774. It was assigned on October 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert T. Buchanan?
Dr. Robert T. Buchanan is a general surgeon in Chickasha, Oklahoma. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Robert T. Buchanan practice?
Dr. Buchanan practices at 2220 Iowa Street, Chickasha, OK 73018. Dr. Buchanan's primary practice is Grady Memorial Hospital in Chickasha, Oklahoma, part of Grady Memorial Hospital. Dmand AI also links Dr. Buchanan to 1 breast imaging center and 1 rural health clinic, and a free account names each one.
What is Dr. Robert T. Buchanan's office phone number?
The practice phone on file for Dr. Buchanan is (405) 224-2300. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Robert T. Buchanan's email address?
Dmand AI checks professional and personal email addresses for Dr. Buchanan through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Robert T. Buchanan's medical license number?
Dr. Buchanan holds Oklahoma license 37515.
Which hospitals is Dr. Robert T. Buchanan affiliated with?
Dr. Buchanan practices at Grady Memorial Hospital in Chickasha, Oklahoma.
What medical group is Dr. Robert T. Buchanan part of?
Dr. Buchanan is linked to Five Oaks Medical Group.
Who does Dr. Robert T. Buchanan practice with?
Dmand AI links 52 HCPs to Dr. Buchanan's primary medical group, 3 of them general surgeons. A free account lists them, with verified contacts.
Does Dr. Robert T. Buchanan accept Medicare?
Yes. CMS data shows Dr. Buchanan billed Medicare for 17 services in 2024, and Dr. Buchanan accepts Medicare assignment.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Robert T. Buchanan see?
CMS counts 45 Medicare patients who saw Dr. Buchanan in 2026, with an average age of 76.
What services does Dr. Robert T. Buchanan bill to Medicare?
In 2024, Dr. Buchanan's most billed Medicare services were office visit, established patient (99215).
Where did Dr. Robert T. Buchanan go to medical school?
Dr. Buchanan graduated from University of Texas Southwestern Medical School at Dallas in 1983.
What drugs does Dr. Robert T. Buchanan prescribe most?
In 2024 Medicare Part D data, Dr. Buchanan's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf and Hydrocodone-Acetaminophen.
Has Dr. Robert T. Buchanan received payments from drug or device companies?
CMS Open Payments shows $209 in general payments to Dr. Buchanan from 8 companies from 2016 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Robert T. Buchanan been practicing?
Dr. Buchanan graduated from medical school in 1983, 43 years ago.
What EHR does Dr. Robert T. Buchanan's practice use?
Dmand AI tracks the EHR system at Grady Memorial Hospital and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.
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