West J Emerg Med
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Dr. Tyler Ronnfeldt, MD
NPI1083134878PAC ID0648544064
- Medicare services, 2024
- 391
- Medicare patients, 2024
- 336
- Part D claims, 2024
- 185
- Publications
- 2
- Hospital affiliations
- 3
- Practice address
- 450 E 23rd E St, Fremont, NE 68025
- Practice phone
- Call (402) 721-1610
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fremont Health Medical Center
Fremont, Nebraska
Find Dr. Ronnfeldt'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. Tyler Ronnfeldt is an emergency medicine physician in Fremont, Nebraska
Dr. Ronnfeldt practices at Fremont Health Medical Center in Fremont, Nebraska.
Dr. Ronnfeldt's NPI, 1083134878, was assigned on June 22, 2017. Dr. Ronnfeldt holds Nebraska license 1083134878.
NPI and contact details
- NPI
- 1083134878NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648544064
- NPI enumeration date
- June 22, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (402) 721-1610
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tyler Ronnfeldt practices at Fremont Health Medical Center in Fremont, Nebraska
Dr. Ronnfeldt's primary practice is Fremont Health Medical Center, at 450 E 23rd E St, Fremont, NE 68025 in Dodge County. The practice phone is (402) 721-1610.
- Fremont Health Medical Center450 E 23rd E St, Fremont, NE 68025 · Dodge CountyPhone(402) 721-1610
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Tyler Ronnfeldt is affiliated with 5 sites of care and 3 medical groups
Dr. Ronnfeldt's primary practice is Fremont Health Medical Center in Fremont, Nebraska. Dr. Ronnfeldt is also affiliated with Methodist Fremont Health. The medical group on file is Methodist Fremont Health. Dmand AI also links Dr. Ronnfeldt to 2 more hospitals, 2 medical groups and 1 other site, each named with a free account.
Fremont Health Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Tyler Ronnfeldt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ronnfeldt practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fremont Health Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tyler Ronnfeldt is one of 248 emergency medicine physicians in Nebraska
Emergency medicine is Dr. Ronnfeldt's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ronnfeldt is licensed in Nebraska.
Specialties and state licenses
- Emergency medicine, NebraskaPrimary
Emergency medicine physicians near Dr. Ronnfeldt
Counts of emergency medicine physicians 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. Tyler Ronnfeldt billed Medicare for 391 services in 2024
CMS data shows 391 Medicare services from Dr. Ronnfeldt across 3 procedure codes in 2024, for 336 Medicare patients. Medicare paid $32,437 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024391
Medicare patients336
Paid by Medicare$32,437
Procedure codes3
Dr. Ronnfeldt's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4212024: 3917%
Dr. Ronnfeldt compared with the Nebraska median for emergency medicine physicians, 2024
- Dr. Ronnfeldt
- Nebraska median
- Medicare services
- 391vs 28836% above
- Medicare patients
- 336vs 28120% above
- Part D claims
- 81vs 5840% above
Medians across 242 emergency medicine physicians in Nebraska with Dmand AI profiles that report each measure.
Dr. Ronnfeldt'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. Ronnfeldt?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ronnfeldt and other emergency medicine physicians in Nebraska.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tyler Ronnfeldt treated 336 Medicare patients in 2024, average age 76
CMS counts 336 Medicare patients who saw Dr. Ronnfeldt in 2024. The largest group is 75 to 84, with 115 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.69, 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. Ronnfeldt's median patient age at 47, with 54% women.
Medicare patients, 2024336
Average age76
Average risk score1.69
Also on Medicaid18%
Dr. Ronnfeldt's Medicare patients by age, 2024
Dr. Ronnfeldt's Medicare patients by sex, 2024
- Women20060%
- Men13640%
Chronic conditions among Dr. Ronnfeldt's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis71%
- Anxiety38%
- Mood disorders36%
- Chronic kidney disease35%
- Ischemic heart disease35%
- Depression33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ronnfeldt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tyler Ronnfeldt wrote 185 Medicare Part D claims in 2024
In 2024, Dr. Ronnfeldt wrote 185 Medicare Part D claims for 137 patients. 91% of them were for generic drugs. CMS names the drug for 81 of them, across 5 drugs with 11 or more claims each, at $696 in total drug cost. In 2023, CMS named 51 claims across 4 drugs.
Part D claims, 2024185
Drugs named by CMS5
Total drug cost$696
Part D patients137
Dr. Ronnfeldt's Part D claims by kind of drug, 2024
- Generic169 claims91%
- Brand-name16 claims9%
Dr. Ronnfeldt'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. Ronnfeldt's Part D claims, 2024
- Opioids6%11 of 185 claims
- Antibiotics47%87 of 185 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: 512024: 8159%
Drugs named by CMS: 5 in 2024, 4 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
How Dr. Tyler Ronnfeldt takes part in Medicare
Dr. Ronnfeldt accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Tyler Ronnfeldt has 2 publications on record
Dmand AI links 2 papers to Dr. Ronnfeldt, published from 2016 to 2020. Dr. Ronnfeldt's most frequent co-authors are Chad E. Branecki, MD, Jason Gerard Langenfeld, MD and Thomas Edward Schulte, MD.
Papers2
Years published2016 to 2020
Dr. Ronnfeldt's most frequent co-authors
- Chad E. Branecki, MD1 shared paper
- Jason Gerard Langenfeld, MD1 shared paper
- Thomas Edward Schulte, MD1 shared paper
Recent publications by Dr. Ronnfeldt
AcetylcysteineAuranofinBreast Neoplasms
See who Dr. Ronnfeldt researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ronnfeldt works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Tyler Ronnfeldt received $20 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Ronnfeldt from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $20.
Companies that paid Dr. Ronnfeldt the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Tyler Ronnfeldt'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Tyler Ronnfeldt
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. Tyler Ronnfeldt's NPI number?
Dr. Tyler Ronnfeldt's NPI number is 1083134878. It was assigned on June 22, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Tyler Ronnfeldt?
Dr. Tyler Ronnfeldt is an emergency medicine physician in Fremont, Nebraska. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Tyler Ronnfeldt practice?
Dr. Ronnfeldt practices at 450 E 23rd E St, Fremont, NE 68025. Dr. Ronnfeldt's primary practice is Fremont Health Medical Center in Fremont, Nebraska. Dmand AI also links Dr. Ronnfeldt to 2 hospitals, 2 medical groups and 1 other site.
What is Dr. Tyler Ronnfeldt's office phone number?
The practice phone on file for Dr. Ronnfeldt is (402) 721-1610.
What is Dr. Tyler Ronnfeldt's medical license number?
Dr. Ronnfeldt holds Nebraska license 1083134878.
Which hospitals is Dr. Tyler Ronnfeldt affiliated with?
Dr. Ronnfeldt is affiliated with Methodist Fremont Health. Dmand AI links Dr. Ronnfeldt to 2 more hospitals.
What medical group is Dr. Tyler Ronnfeldt part of?
Dr. Ronnfeldt is linked to Methodist Fremont Health. Dmand AI links Dr. Ronnfeldt to 2 more medical groups.
Does Dr. Tyler Ronnfeldt accept Medicare?
Yes. CMS data shows Dr. Ronnfeldt billed Medicare for 391 services in 2024, and Dr. Ronnfeldt accepts Medicare assignment.
How many Medicare patients does Dr. Tyler Ronnfeldt see?
CMS counts 336 Medicare patients who saw Dr. Ronnfeldt in 2024, with an average age of 76.
What services does Dr. Tyler Ronnfeldt bill to Medicare?
In 2024, Dr. Ronnfeldt's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
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What drugs does Dr. Tyler Ronnfeldt prescribe most?
In 2024 Medicare Part D data, Dr. Ronnfeldt's most prescribed drugs by claims were Doxycycline Hyclate, Prednisone and Amoxicillin-Clavulanate Potass.
Has Dr. Tyler Ronnfeldt received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Ronnfeldt from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Tyler Ronnfeldt been practicing?
Dr. Ronnfeldt graduated from medical school in 2017, 9 years ago.
Does Dr. Tyler Ronnfeldt do research?
Dmand AI links 2 publications to Dr. Ronnfeldt, published from 2016 to 2020.
Who does Dr. Tyler Ronnfeldt publish with?
Dr. Ronnfeldt's most frequent co-authors are Chad E. Branecki, MD (1 shared paper), Jason Gerard Langenfeld, MD (1 shared paper) and Thomas Edward Schulte, MD (1 shared paper).
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