Dr. John R. Harkess, MD
- Medicare services, 2024
- 184
- Medicare patients, 2024
- 60
- Part D claims, 2024
- 48
- Industry payments
- $2,337
- Affiliated sites
- 2
- Practice address
- 4300 W Memorial Rd, 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
Oklahoma Hospital Oklahoma City - South
Oklahoma City, Oklahoma
Find Dr. Harkess' 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. John R. Harkess is an infectious disease specialist in Oklahoma City, Oklahoma
Dr. Harkess practices at Oklahoma Hospital Oklahoma City - South in Oklahoma City, Oklahoma.
Dr. Harkess' NPI, 1366496218, was assigned on May 22, 2006. Dr. Harkess holds Oklahoma license 15943.
- NPI
- 1366496218NPI Registry (opens in a new tab)
- NPI enumeration date
- May 22, 2006
- NPI status
- Active
- Practice phone
- (405) 755-1515
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John R. Harkess practices at Oklahoma Hospital Oklahoma City - South in Oklahoma City, Oklahoma
Dr. Harkess' primary practice is Oklahoma Hospital Oklahoma City - South, at 4300 W Memorial Rd, Oklahoma City, OK 73120 in Oklahoma County. The practice phone is (405) 755-1515.
- Oklahoma Hospital Oklahoma City - South4300 W Memorial Rd, Oklahoma City, OK 73120 · Oklahoma CountyPhone(405) 755-1515
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John R. Harkess is affiliated with 3 sites of care and 2 medical groups
Dr. Harkess' primary practice is Oklahoma Hospital Oklahoma City - South in Oklahoma City, Oklahoma. The medical group on file is Mercy Clinic Oklahoma Communities. Dmand AI also links Dr. Harkess to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John R. Harkess' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harkess practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oklahoma Hospital Oklahoma City - South | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John R. Harkess is one of 57 infectious disease specialists in Oklahoma
Infectious disease is Dr. Harkess' primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Harkess is licensed in Oklahoma.
Specialties and state licenses
- Infectious disease, OklahomaPrimary
Infectious disease specialists near Dr. Harkess
Counts of infectious disease specialists 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. John R. Harkess billed Medicare for 184 services in 2024
CMS data shows 184 Medicare services from Dr. Harkess across 4 procedure codes in 2024, for 60 Medicare patients. Medicare paid $10,245 for them.
Dr. Harkess' Medicare services by type, 2021 to 2024
- 2021
- 2024
- Office and hospital visits
- 2021: 7222024: 18475%
Where Dr. Harkess' Medicare services took place, 2024
- In an office116%
- In a facility17394%
Dr. Harkess compared with the Oklahoma median for infectious disease specialists, 2024
- Dr. Harkess
- Oklahoma median
- Medicare services
- 184vs 49963% below
- Medicare patients
- 60vs 21672% below
- Part D claims
- 32vs 25988% below
Medians across 51 infectious disease specialists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Harkess' 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. Harkess?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Harkess and other infectious disease specialists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John R. Harkess treated 60 Medicare patients in 2024, average age 72
CMS counts 60 Medicare patients who saw Dr. Harkess in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.47, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Harkess' median patient age at 73, with 0% women.
Dr. Harkess' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Harkess' Medicare patients by sex, 2024
- Women3355%
- Men2745%
Chronic conditions among Dr. Harkess' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis72%
- Diabetes60%
- Ischemic heart disease57%
- Chronic kidney disease55%
- Anxiety53%
- Mood disorders52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harkess' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women0%
- Men100%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John R. Harkess wrote 48 Medicare Part D claims in 2024
In 2024, Dr. Harkess wrote 48 Medicare Part D claims for 14 patients. 98% of them were for generic drugs. CMS names the drug for 32 of them, across 2 drugs with 11 or more claims each, at $351 in total drug cost. In 2021, CMS named 355 claims across 15 drugs.
Dr. Harkess' Part D claims by kind of drug, 2024
- Generic47 claims98%
- Brand-name and other1 claims2%
Dr. Harkess' 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.
Drug classes CMS tracks in Dr. Harkess' Part D claims, 2024
- Antibiotics88%42 of 48 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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 3552022: 3291%
Drugs named by CMS: 2 in 2022, 15 in 2021.
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
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Dr. John R. Harkess received $2,337 in industry payments from 2016 to 2023
CMS Open Payments shows 112 general payments to Dr. Harkess from 29 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 95% of the total. Merck Sharp & Dohme Corporation paid the most, $411.
General payments to Dr. Harkess by program year, 2016 to 2023
General payments to Dr. Harkess by kind, 2016 to 2023
- Food and beverage$2,22295%
- Education$1155%
Companies that paid Dr. Harkess the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John R. Harkess'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John R. Harkess
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. John R. Harkess' NPI number?
Dr. John R. Harkess' NPI number is 1366496218. It was assigned on May 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John R. Harkess?
Dr. John R. Harkess is an infectious disease specialist in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. John R. Harkess practice?
Dr. Harkess practices at 4300 W Memorial Rd, Oklahoma City, OK 73120. Dr. Harkess' primary practice is Oklahoma Hospital Oklahoma City - South in Oklahoma City, Oklahoma. Dmand AI also links Dr. Harkess to 2 group practices and clinics and 1 medical group.
What is Dr. John R. Harkess' office phone number?
The practice phone on file for Dr. Harkess is (405) 755-1515.
What is Dr. John R. Harkess' medical license number?
Dr. Harkess holds Oklahoma license 15943.
What medical group is Dr. John R. Harkess part of?
Dr. Harkess is linked to Mercy Clinic Oklahoma Communities. Dmand AI links Dr. Harkess to 1 more medical group.
Does Dr. John R. Harkess accept Medicare?
Yes. CMS data shows Dr. Harkess billed Medicare for 184 services in 2024.
How many Medicare patients does Dr. John R. Harkess see?
CMS counts 60 Medicare patients who saw Dr. Harkess in 2024, with an average age of 72.
What services does Dr. John R. Harkess bill to Medicare?
In 2024, Dr. Harkess' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and hospital inpatient care (99222).
What drugs does Dr. John R. Harkess prescribe most?
In 2022 Medicare Part D data, Dr. Harkess' most prescribed drugs by claims were Amoxicillin and Cephalexin.
Has Dr. John R. Harkess received payments from drug or device companies?
CMS Open Payments shows $2,337 in general payments to Dr. Harkess from 29 companies from 2016 to 2023. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. John R. Harkess been practicing?
Dr. Harkess graduated from medical school in 1982, 44 years ago.
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