Dr. John E. Ruffing, MD
- Medicare services, 2024
- 691
- Medicare patients, 2024
- 210
- Part D claims, 2024
- 8,088
- Hospital affiliations
- 2
- Industry payments
- $28,374
- Practice address
- 6600 S Yale E Ave, Tulsa, OK 74136
- Practice phone
- Call (918) 488-6001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Warren Clinic Inc
Tulsa, Oklahoma
Find Dr. Ruffing'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. John E. Ruffing is an internist in Tulsa, Oklahoma
Dr. Ruffing practices at Warren Clinic Inc in Tulsa, Oklahoma.
Dr. Ruffing's NPI, 1386618817, was assigned on February 13, 2006. Dr. Ruffing graduated from University of Utah School of Medicine in 1977. Dr. Ruffing holds Oklahoma license 11824.
- NPI
- 1386618817NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759420672
- NPI enumeration date
- February 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (918) 488-6001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John E. Ruffing practices at Warren Clinic Inc in Tulsa, Oklahoma
Dr. Ruffing's primary practice is Warren Clinic Inc, at 6600 S Yale E Ave, Tulsa, OK 74136 in Tulsa County. The practice phone is (918) 488-6001.
- Warren Clinic Inc6600 S Yale E Ave, Tulsa, OK 74136 · Tulsa CountyPhone(918) 488-6001
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John E. Ruffing is affiliated with 8 sites of care and 1 medical group
Dr. Ruffing's primary practice is Warren Clinic Inc in Tulsa, Oklahoma. Dr. Ruffing is also affiliated with Saint Francis Hospital. The medical group on file is Warren Clinic. Dmand AI also links Dr. Ruffing to 1 more hospital, 4 home health agencies and 1 group practice or clinic, 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 E. Ruffing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruffing practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Warren Clinic Inc | Available with a free account |
| +7 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John E. Ruffing is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Ruffing's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ruffing is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Ruffing
Counts of internists 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 E. Ruffing billed Medicare for 691 services in 2024
CMS data shows 691 Medicare services from Dr. Ruffing across 5 procedure codes in 2024, for 210 Medicare patients. Medicare paid $21,965 for them. Every service was in an office.
Dr. Ruffing's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6012024: 48519%
- Other services
- 2023: 1052024: 20696%
- Tests and treatments
- 2023: 162024: 0100%
Dr. Ruffing compared with the Oklahoma median for internists, 2024
- Dr. Ruffing
- Oklahoma median
- Medicare services
- 691vs 6369% above
- Medicare patients
- 210vs 24314% below
- Part D claims
- 7,399vs 28226.2 times
Medians across 969 internists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Ruffing'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. Ruffing?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ruffing and other internists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John E. Ruffing treated 210 Medicare patients in 2024, average age 74
CMS counts 210 Medicare patients who saw Dr. Ruffing in 2024. The largest group is 65 to 74, with 102 patients. 71% of them have high blood pressure, and 62% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ruffing's median patient age at 70, with 46% women.
Dr. Ruffing's Medicare patients by age, 2024
Dr. Ruffing's Medicare patients by sex, 2024
- Women9847%
- Men11253%
Chronic conditions among Dr. Ruffing's Medicare patients, 2024
- High blood pressure71%
- High cholesterol62%
- Arthritis43%
- Diabetes31%
- Ischemic heart disease29%
- Mood disorders23%
- Anxiety22%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ruffing's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John E. Ruffing wrote 8,088 Medicare Part D claims in 2024
In 2024, Dr. Ruffing wrote 8,088 Medicare Part D claims for 427 patients. 88% of them were for generic drugs. CMS names the drug for 7,399 of them, across 140 drugs with 11 or more claims each, at $482,823 in total drug cost. In 2023, CMS named 7,596 claims across 141 drugs.
Dr. Ruffing's Part D claims by kind of drug, 2024
- Generic7,099 claims88%
- Brand-name949 claims12%
- Other40 claims0%
Dr. Ruffing'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. Ruffing's Part D claims, 2024
- Opioids6%495 of 8,088 claims
- Antibiotics2%163 of 8,088 claims
- Antipsychotics, patients 65 and over1%57 of 8,088 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: 7,5962024: 7,3993%
Drugs named by CMS: 140 in 2024, 141 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. John E. Ruffing offers telehealth to Medicare patients
Dr. Ruffing accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ruffing as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. John E. Ruffing received $28,374 in industry payments from 2016 to 2025
CMS Open Payments shows 1,989 general payments to Dr. Ruffing from 61 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $3,742.
General payments to Dr. Ruffing by program year, 2016 to 2025
General payments to Dr. Ruffing by kind, 2016 to 2025
- Food and beverage$28,247100%
- Education$1270%
Companies that paid Dr. Ruffing 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. John E. Ruffing graduated from University of Utah School of Medicine
Dr. Ruffing graduated from University of Utah School of Medicine in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John E. Ruffing'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. John E. Ruffing
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 E. Ruffing's NPI number?
Dr. John E. Ruffing's NPI number is 1386618817. It was assigned on February 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John E. Ruffing?
Dr. John E. Ruffing is an internist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John E. Ruffing practice?
Dr. Ruffing practices at 6600 S Yale E Ave, Tulsa, OK 74136. Dr. Ruffing's primary practice is Warren Clinic Inc in Tulsa, Oklahoma. Dmand AI also links Dr. Ruffing to 1 hospital, 4 home health agencies and 1 group practice or clinic.
What is Dr. John E. Ruffing's office phone number?
The practice phone on file for Dr. Ruffing is (918) 488-6001.
What is Dr. John E. Ruffing's medical license number?
Dr. Ruffing holds Oklahoma license 11824.
Which hospitals is Dr. John E. Ruffing affiliated with?
Dr. Ruffing is affiliated with Saint Francis Hospital. Dmand AI links Dr. Ruffing to 1 more hospital.
What medical group is Dr. John E. Ruffing part of?
Dr. Ruffing is linked to Warren Clinic.
Does Dr. John E. Ruffing accept Medicare?
Yes. CMS data shows Dr. Ruffing billed Medicare for 691 services in 2024, and Dr. Ruffing accepts Medicare assignment.
Does Dr. John E. Ruffing offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ruffing as offering telehealth services.
How many Medicare patients does Dr. John E. Ruffing see?
CMS counts 210 Medicare patients who saw Dr. Ruffing in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. John E. Ruffing bill to Medicare?
In 2024, Dr. Ruffing's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G2211).
Where did Dr. John E. Ruffing go to medical school?
Dr. Ruffing graduated from University of Utah School of Medicine in 1977.
What drugs does Dr. John E. Ruffing prescribe most?
In 2024 Medicare Part D data, Dr. Ruffing's most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Amlodipine Besylate.
Has Dr. John E. Ruffing received payments from drug or device companies?
CMS Open Payments shows $28,374 in general payments to Dr. Ruffing from 61 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. John E. Ruffing been practicing?
Dr. Ruffing graduated from medical school in 1977, 49 years ago.
Selling to internal medicine practices?
See internists in Oklahoma by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card