Dr. John Francis Guynan, MD
- Medicare services, 2024
- 1,573
- Medicare patients, 2024
- 1,366
- Hospital affiliations
- 5
- Industry payments
- $3,464
- Medical groups
- 2
- Practice address
- 2412 Cuming St, Omaha, NE 68131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CHI Health University Campus Emergency Department - Emergency Department - HOPD
Acute Care Hospital outpatient department · Omaha, Nebraska
Find Dr. Guynan's professional email, personal email and mobile number
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Dr. John Francis Guynan is a diagnostic radiologist in Omaha, Nebraska
Dr. Guynan practices at CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska.
Dr. Guynan's NPI, 1003227398, was assigned on May 8, 2014. Dr. Guynan graduated from University of Nebraska College of Medicine in 2014. Dr. Guynan holds Nebraska license 32481.
- NPI
- 1003227398NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264734698
- NPI enumeration date
- May 8, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Francis Guynan practices at CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska
Dr. Guynan's primary practice is CHI Health University Campus Emergency Department - Emergency Department - HOPD, at 2412 Cuming St, Omaha, NE 68131.
- CHI Health University Campus Emergency Department - Emergency Department - HOPD2412 Cuming St, Omaha, NE 68131
Source: Dmand AI Affiliation Data
Dr. John Francis Guynan is affiliated with 6 sites of care and 2 medical groups
Dr. Guynan's primary practice is CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska. Dr. Guynan is also affiliated with CHI Health Creighton University Medical Center - Bergan Mercy. The medical group on file is Think Whole Person Healthcare. Dmand AI also links Dr. Guynan to 4 more hospitals and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Francis Guynan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Guynan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHI Health University Campus Emergency Department - Emergency Department - HOPD | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Francis Guynan is one of 210 diagnostic radiologists in Nebraska
Diagnostic radiology is Dr. Guynan's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Guynan is licensed in Nebraska.
Specialties and state licenses
- Diagnostic radiology, NebraskaPrimary
Diagnostic radiologists near Dr. Guynan
Counts of diagnostic radiologists 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 Francis Guynan billed Medicare for 1,573 services in 2024
CMS data shows 1,573 Medicare services from Dr. Guynan across 35 procedure codes in 2024, for 1,366 Medicare patients. Medicare paid $37,498 for them.
Dr. Guynan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,2552024: 1,1737%
- Tests and treatments
- 2023: 2012024: 22411%
- Surgery
- 2023: 1332024: 17632%
Where Dr. Guynan's Medicare services took place, 2024
- In an office17611%
- In a facility1,39789%
Dr. Guynan compared with the Nebraska median for diagnostic radiologists, 2024
- Dr. Guynan
- Nebraska median
- Medicare services
- 1,573vs 3,50255% below
- Medicare patients
- 1,366vs 2,67349% below
Medians across 203 diagnostic radiologists in Nebraska with Dmand AI profiles that report each measure.
Dr. Guynan'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. Guynan and other diagnostic radiologists in Nebraska.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Francis Guynan treated 1,366 Medicare patients in 2024, average age 74
CMS counts 1,366 Medicare patients who saw Dr. Guynan in 2024. The largest group is 65 to 74, with 584 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.80, 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. Guynan's median patient age at 70, with 50% women.
Dr. Guynan's Medicare patients by age, 2024
Dr. Guynan's Medicare patients by sex, 2024
- Women70552%
- Men66148%
Chronic conditions among Dr. Guynan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Chronic kidney disease44%
- Ischemic heart disease40%
- Diabetes35%
- Heart failure35%
- Mood disorders34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Guynan'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
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John Francis Guynan takes part in Medicare
Dr. Guynan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Leg revascularization (restoring blood flow): 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. John Francis Guynan received $3,464 in industry payments from 2017 to 2025
CMS Open Payments shows 43 general payments to Dr. Guynan from 12 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 82% of the total. Boston Scientific Corporation paid the most, $1,017.
General payments to Dr. Guynan by program year, 2017 to 2025
General payments to Dr. Guynan by kind, 2017 to 2025
- Food and beverage$2,82682%
- Device or supply loans$51515%
- Travel and lodging$1234%
Companies that paid Dr. Guynan the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Francis Guynan graduated from University of Nebraska College of Medicine
Dr. Guynan graduated from University of Nebraska College of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Francis Guynan'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 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) |
| 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. John Francis Guynan
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 Francis Guynan's NPI number?
Dr. John Francis Guynan's NPI number is 1003227398. It was assigned on May 8, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. John Francis Guynan?
Dr. John Francis Guynan is a diagnostic radiologist in Omaha, Nebraska. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. John Francis Guynan practice?
Dr. Guynan practices at 2412 Cuming St, Omaha, NE 68131. Dr. Guynan's primary practice is CHI Health University Campus Emergency Department - Emergency Department - HOPD in Omaha, Nebraska. Dmand AI also links Dr. Guynan to 4 hospitals and 1 medical group.
What is Dr. John Francis Guynan's medical license number?
Dr. Guynan holds Nebraska license 32481.
Which hospitals is Dr. John Francis Guynan affiliated with?
Dr. Guynan is affiliated with CHI Health Creighton University Medical Center - Bergan Mercy. Dmand AI links Dr. Guynan to 4 more hospitals.
What medical group is Dr. John Francis Guynan part of?
Dr. Guynan is linked to Think Whole Person Healthcare. Dmand AI links Dr. Guynan to 1 more medical group.
Does Dr. John Francis Guynan accept Medicare?
Yes. CMS data shows Dr. Guynan billed Medicare for 1,573 services in 2024, and Dr. Guynan accepts Medicare assignment.
How many Medicare patients does Dr. John Francis Guynan see?
CMS counts 1,366 Medicare patients who saw Dr. Guynan in 2024, with an average age of 74.
What services does Dr. John Francis Guynan bill to Medicare?
In 2024, Dr. Guynan's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (71046) and special service (99152).
Where did Dr. John Francis Guynan go to medical school?
Dr. Guynan graduated from University of Nebraska College of Medicine in 2014.
Has Dr. John Francis Guynan received payments from drug or device companies?
CMS Open Payments shows $3,464 in general payments to Dr. Guynan from 12 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. John Francis Guynan been practicing?
Dr. Guynan graduated from medical school in 2014, 12 years ago.
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