Dr. Derek Michael Yarmer, MD
- Medicare services, 2024
- 1,093
- Medicare patients, 2024
- 845
- Part D claims, 2024
- 339
- Hospital affiliations
- 2
- Industry payments
- $149
- Practice address
- 2220 Canterbury Drive, Hays, KS 67601
- Practice phone
- Call (785) 623-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yarmer'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. Derek Michael Yarmer is an emergency medicine physician in Hays, Kansas
Dr. Yarmer practices at Hays Medical Center in Hays, Kansas, part of Hays Medical Center.
Dr. Yarmer's NPI, 1437425642, was assigned on April 2, 2012. Dr. Yarmer graduated from University of Kansas School of Med (KC/Wich/Sal) in 2012. Dr. Yarmer holds Kansas license 04-37547.
- NPI
- 1437425642NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264652445
- NPI enumeration date
- April 2, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (785) 623-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Derek Michael Yarmer practices at Hays Medical Center in Hays, Kansas
Dr. Yarmer's primary practice is Hays Medical Center, at 2220 Canterbury Drive, Hays, KS 67601 in Ellis County. The practice phone is (785) 623-5000.
- Hays Medical Center2220 Canterbury Drive, Hays, KS 67601 · Ellis CountyPhone(785) 623-5000
Source: Dmand AI Affiliation Data
Dr. Derek Michael Yarmer is affiliated with 3 sites of care and 3 medical groups
Dr. Yarmer's primary practice is Hays Medical Center in Hays, Kansas, part of Hays Medical Center. Dr. Yarmer is also affiliated with The University of Kansas Health System Great Bend Campus. The medical group on file is Hays Medical Center (HaysMed). Dmand AI also links Dr. Yarmer to 2 more medical groups and 1 hospice, 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. Derek Michael Yarmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yarmer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hays Medical Center | Available with a free account |
| +2 more sites and 2 medical groups | 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 Hays Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Derek Michael Yarmer is one of 378 emergency medicine physicians in Kansas
Emergency medicine is Dr. Yarmer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Yarmer is licensed in Kansas.
Specialties and state licenses
- Emergency medicine, KansasPrimary
Emergency medicine physicians near Dr. Yarmer
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. Derek Michael Yarmer billed Medicare for 1,093 services in 2024
CMS data shows 1,093 Medicare services from Dr. Yarmer across 4 procedure codes in 2024, for 845 Medicare patients. Medicare paid $101,856 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Yarmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9182024: 1,01210%
- Tests and treatments
- 2023: 342024: 81138%
Dr. Yarmer compared with the Kansas median for emergency medicine physicians, 2024
- Dr. Yarmer
- Kansas median
- Medicare services
- 1,093vs 3992.7 times
- Medicare patients
- 845vs 3372.5 times
- Part D claims
- 227vs 743.1 times
Medians across 376 emergency medicine physicians in Kansas with Dmand AI profiles that report each measure.
Dr. Yarmer'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. Yarmer and other emergency medicine physicians in Kansas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Derek Michael Yarmer treated 845 Medicare patients in 2024, average age 75
CMS counts 845 Medicare patients who saw Dr. Yarmer in 2024. The largest group is 65 to 74, with 276 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.73, 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. Yarmer's median patient age at 42, with 55% women.
Dr. Yarmer's Medicare patients by age, 2024
Dr. Yarmer's Medicare patients by sex, 2024
- Women46255%
- Men38345%
Chronic conditions among Dr. Yarmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Mood disorders40%
- Anxiety38%
- Depression38%
- Ischemic heart disease37%
- Chronic kidney disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yarmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Derek Michael Yarmer wrote 339 Medicare Part D claims in 2024
In 2024, Dr. Yarmer wrote 339 Medicare Part D claims for 239 patients. 93% of them were for generic drugs. CMS names the drug for 227 of them, across 11 drugs with 11 or more claims each, at $1,209 in total drug cost. In 2023, CMS named 175 claims across 8 drugs.
Dr. Yarmer's Part D claims by kind of drug, 2024
- Generic315 claims93%
- Brand-name and other24 claims7%
Dr. Yarmer'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. Yarmer's Part D claims, 2024
- Opioids14%46 of 339 claims
- Antibiotics45%151 of 339 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: 1752024: 22730%
Drugs named by CMS: 11 in 2024, 8 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. Derek Michael Yarmer takes part in Medicare
Dr. Yarmer 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)
For MedTech and pharma teams
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Dr. Derek Michael Yarmer received $149 in industry payments from 2016 to 2024
CMS Open Payments shows 10 general payments to Dr. Yarmer from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $64.
General payments to Dr. Yarmer by program year, 2016 to 2024
Companies that paid Dr. Yarmer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Derek Michael Yarmer graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Yarmer graduated from University of Kansas School of Med (KC/Wich/Sal) in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Derek Michael Yarmer'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) |
| 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. Derek Michael Yarmer
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. Derek Michael Yarmer's NPI number?
Dr. Derek Michael Yarmer's NPI number is 1437425642. It was assigned on April 2, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Derek Michael Yarmer?
Dr. Derek Michael Yarmer is an emergency medicine physician in Hays, Kansas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Derek Michael Yarmer practice?
Dr. Yarmer practices at 2220 Canterbury Drive, Hays, KS 67601. Dr. Yarmer's primary practice is Hays Medical Center in Hays, Kansas, part of Hays Medical Center. Dmand AI also links Dr. Yarmer to 2 medical groups and 1 hospice.
What is Dr. Derek Michael Yarmer's office phone number?
The practice phone on file for Dr. Yarmer is (785) 623-5000.
What is Dr. Derek Michael Yarmer's medical license number?
Dr. Yarmer holds Kansas license 04-37547.
Which hospitals is Dr. Derek Michael Yarmer affiliated with?
Dr. Yarmer practices at Hays Medical Center in Hays, Kansas. Dr. Yarmer is also affiliated with The University of Kansas Health System Great Bend Campus.
What medical group is Dr. Derek Michael Yarmer part of?
Dr. Yarmer is linked to Hays Medical Center (HaysMed). Dmand AI links Dr. Yarmer to 2 more medical groups.
Does Dr. Derek Michael Yarmer accept Medicare?
Yes. CMS data shows Dr. Yarmer billed Medicare for 1,093 services in 2024, and Dr. Yarmer accepts Medicare assignment.
How many Medicare patients does Dr. Derek Michael Yarmer see?
CMS counts 845 Medicare patients who saw Dr. Yarmer in 2024, with an average age of 75.
What services does Dr. Derek Michael Yarmer bill to Medicare?
In 2024, Dr. Yarmer's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
Show 4 more questionsShow fewer questions
Where did Dr. Derek Michael Yarmer go to medical school?
Dr. Yarmer graduated from University of Kansas School of Med (KC/Wich/Sal) in 2012.
What drugs does Dr. Derek Michael Yarmer prescribe most?
In 2024 Medicare Part D data, Dr. Yarmer's most prescribed drugs by claims were Ciprofloxacin HCl, Prednisone and Ondansetron ODT.
Has Dr. Derek Michael Yarmer received payments from drug or device companies?
CMS Open Payments shows $149 in general payments to Dr. Yarmer from 5 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Derek Michael Yarmer been practicing?
Dr. Yarmer graduated from medical school in 2012, 14 years ago.
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