Dr. Jill E. Hemmelgarn, DO
- Medicare services, 2024
- 3,073
- Medicare patients, 2024
- 861
- Part D claims, 2024
- 3,751
- Hospital affiliations
- 5
- Industry payments
- $6,155
- Practice address
- 1717 Medical Blvd, Findlay, OH 45840
- Practice phone
- Call (419) 443-1051
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Seneca Dialysis
Findlay, Ohio
Find Dr. Hemmelgarn'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. Jill E. Hemmelgarn is a nephrologist in Findlay, Ohio
Dr. Hemmelgarn practices at Seneca Dialysis in Findlay, Ohio.
Dr. Hemmelgarn's NPI, 1700221132, was assigned on April 29, 2013. Dr. Hemmelgarn holds Ohio license 34013268.
- NPI
- 1700221132NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547554024
- NPI enumeration date
- April 29, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (419) 443-1051
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jill E. Hemmelgarn practices at Seneca Dialysis in Findlay, Ohio
Dr. Hemmelgarn's primary practice is Seneca Dialysis, at 1717 Medical Blvd, Findlay, OH 45840 in Hancock County. The practice phone is (419) 443-1051.
- Seneca Dialysis1717 Medical Blvd, Findlay, OH 45840 · Hancock CountyPhone(419) 443-1051
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jill E. Hemmelgarn is affiliated with 14 sites of care and 4 medical groups
Dr. Hemmelgarn's primary practice is Seneca Dialysis in Findlay, Ohio. Dr. Hemmelgarn is also affiliated with Mercy Health - St. Rita's Medical Center. The medical group on file is Mercy Health Physicians. Dmand AI also links Dr. Hemmelgarn to 4 more hospitals, 4 dialysis centers, 4 group practices and clinics and 3 medical groups, each named with a free account.
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. Jill E. Hemmelgarn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hemmelgarn practices, 13 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Seneca Dialysis | Available with a free account |
| +13 more sites and 3 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jill E. Hemmelgarn is one of 407 nephrologists in Ohio
Nephrology is Dr. Hemmelgarn's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Hemmelgarn's licenses on file in 2 states: Ohio and Michigan.
Specialties and state licenses
- Nephrology, OhioPrimary
- Internal medicine, Michigan
Nephrologists near Dr. Hemmelgarn
Counts of nephrologists 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. Jill E. Hemmelgarn billed Medicare for 3,073 services in 2024
CMS data shows 3,073 Medicare services from Dr. Hemmelgarn across 12 procedure codes in 2024, for 861 Medicare patients. Medicare paid $233,298 for them.
Dr. Hemmelgarn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,9222024: 2,58134%
- Tests and treatments
- 2023: 2312024: 39270%
- Other services
- 2023: 02024: 100
Where Dr. Hemmelgarn's Medicare services took place, 2024
- In an office1,17838%
- In a facility1,89562%
Dr. Hemmelgarn compared with the Ohio median for nephrologists, 2024
- Dr. Hemmelgarn
- Ohio median
- Medicare services
- 3,073vs 7903.9 times
- Medicare patients
- 861vs 3072.8 times
- Part D claims
- 3,458vs 7674.5 times
Medians across 400 nephrologists in Ohio with Dmand AI profiles that report each measure.
Dr. Hemmelgarn'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. Hemmelgarn?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hemmelgarn and other nephrologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jill E. Hemmelgarn treated 861 Medicare patients in 2024, average age 75
CMS counts 861 Medicare patients who saw Dr. Hemmelgarn in 2024. The largest group is 75 to 84, with 329 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 2.63, 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. Hemmelgarn's median patient age at 74, with 51% women.
Dr. Hemmelgarn's Medicare patients by age, 2024
Dr. Hemmelgarn's Medicare patients by sex, 2024
- Women44852%
- Men41348%
Chronic conditions among Dr. Hemmelgarn's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Ischemic heart disease57%
- Arthritis56%
- Heart failure49%
- Atrial fibrillation38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hemmelgarn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jill E. Hemmelgarn wrote 3,751 Medicare Part D claims in 2024
In 2024, Dr. Hemmelgarn wrote 3,751 Medicare Part D claims for 590 patients. 90% of them were for generic drugs. CMS names the drug for 3,458 of them, across 56 drugs with 11 or more claims each, at $628,998 in total drug cost. In 2023, CMS named 2,877 claims across 50 drugs.
Dr. Hemmelgarn's Part D claims by kind of drug, 2024
- Generic3,378 claims90%
- Brand-name373 claims10%
Dr. Hemmelgarn'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. Hemmelgarn's Part D claims, 2024
- Antibiotics3%108 of 3,751 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: 2,8772024: 3,45820%
Drugs named by CMS: 56 in 2024, 50 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. Jill E. Hemmelgarn offers telehealth to Medicare patients
Dr. Hemmelgarn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hemmelgarn 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. Jill E. Hemmelgarn received $6,155 in industry payments from 2016 to 2025
CMS Open Payments shows 243 general payments to Dr. Hemmelgarn from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 91% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $655.
General payments to Dr. Hemmelgarn by program year, 2016 to 2025
General payments to Dr. Hemmelgarn by kind, 2016 to 2025
- Food and beverage$5,59491%
- Education$5619%
Companies that paid Dr. Hemmelgarn the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jill E. Hemmelgarn'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) |
| 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. Jill E. Hemmelgarn
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. Jill E. Hemmelgarn's NPI number?
Dr. Jill E. Hemmelgarn's NPI number is 1700221132. It was assigned on April 29, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Jill E. Hemmelgarn?
Dr. Jill E. Hemmelgarn is a nephrologist in Findlay, Ohio. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Jill E. Hemmelgarn practice?
Dr. Hemmelgarn practices at 1717 Medical Blvd, Findlay, OH 45840. Dr. Hemmelgarn's primary practice is Seneca Dialysis in Findlay, Ohio. Dmand AI also links Dr. Hemmelgarn to 4 hospitals, 4 dialysis centers, 4 group practices and clinics and 3 medical groups.
What is Dr. Jill E. Hemmelgarn's office phone number?
The practice phone on file for Dr. Hemmelgarn is (419) 443-1051.
What is Dr. Jill E. Hemmelgarn's medical license number?
Dr. Hemmelgarn holds Ohio license 34013268, one of the licenses on file in 2 states.
Which states has Dr. Jill E. Hemmelgarn been licensed in?
Dmand AI has state licenses on file for Dr. Hemmelgarn in Ohio and Michigan.
Which hospitals is Dr. Jill E. Hemmelgarn affiliated with?
Dr. Hemmelgarn is affiliated with Mercy Health - St. Rita's Medical Center. Dmand AI links Dr. Hemmelgarn to 4 more hospitals.
What medical group is Dr. Jill E. Hemmelgarn part of?
Dr. Hemmelgarn is linked to Mercy Health Physicians. Dmand AI links Dr. Hemmelgarn to 3 more medical groups.
Does Dr. Jill E. Hemmelgarn accept Medicare?
Yes. CMS data shows Dr. Hemmelgarn billed Medicare for 3,073 services in 2024, and Dr. Hemmelgarn accepts Medicare assignment.
Does Dr. Jill E. Hemmelgarn offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hemmelgarn as offering telehealth services.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Jill E. Hemmelgarn see?
CMS counts 861 Medicare patients who saw Dr. Hemmelgarn in 2024, with an average age of 75.
What services does Dr. Jill E. Hemmelgarn bill to Medicare?
In 2024, Dr. Hemmelgarn's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99222).
What drugs does Dr. Jill E. Hemmelgarn prescribe most?
In 2024 Medicare Part D data, Dr. Hemmelgarn's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Bumetanide.
Has Dr. Jill E. Hemmelgarn received payments from drug or device companies?
CMS Open Payments shows $6,155 in general payments to Dr. Hemmelgarn from 37 companies from 2016 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Jill E. Hemmelgarn been practicing?
Dr. Hemmelgarn graduated from medical school in 2013, 13 years ago.
Selling to nephrology practices?
See nephrologists in Ohio 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