Otolaryngol Head Neck Surg
Laser TherapyStapes Surgery
Dr. Mark John Van Ess, DO
NPI1841404613PAC ID7214096882
- Medicare services, 2024
- 932
- Medicare patients, 2024
- 385
- Part D claims, 2024
- 964
- Publications
- 3
- Hospital affiliations
- 4
- Practice address
- 1235 E Cherokee St, Springfield, MO 65804
- Practice phone
- Call (417) 820-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Hospital Springfield & Children's Mercy
Springfield, Missouri
Find Dr. Van Ess' professional email, personal email and mobile number
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Dr. Mark John Van Ess is an otology and neurotology physician in Springfield, Missouri
Dr. Van Ess practices at Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri.
Dr. Van Ess' NPI, 1841404613, was assigned on May 10, 2007. Dr. Van Ess holds Missouri license 2009014117.
NPI and contact details
- NPI
- 1841404613NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214096882
- NPI enumeration date
- May 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (417) 820-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark John Van Ess practices at Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri
Dr. Van Ess' primary practice is Mercy Hospital Springfield & Children's Mercy, at 1235 E Cherokee St, Springfield, MO 65804 in Greene County. The practice phone is (417) 820-2000.
- Mercy Hospital Springfield & Children's Mercy1235 E Cherokee St, Springfield, MO 65804 · Greene CountyPhone(417) 820-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark John Van Ess is affiliated with 5 sites of care and 2 medical groups
Dr. Van Ess' primary practice is Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri. Dr. Van Ess is also affiliated with Mercy Hospital Springfield. The medical group on file is Mercy Clinic Family Medicine - Hollister. Dmand AI also links Dr. Van Ess to 3 more hospitals and 1 medical group, each named with a free account.
Mercy Hospital Springfield & Children's MercyPrimary
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. Mark John Van Ess' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Van Ess practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Springfield & Children's Mercy | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark John Van Ess is one of 11 otologys and neurotology physicians in Missouri
Otology and neurotology is Dr. Van Ess' primary specialty in the NPI Registry, under taxonomy code 207YX0901X. Dr. Van Ess is licensed in Missouri.
Specialties and state licenses
- Otology and neurotology, MissouriPrimary
Otologys and neurotology physicians near Dr. Van Ess
Counts of otologys and neurotology 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. Mark John Van Ess billed Medicare for 932 services in 2024
CMS data shows 932 Medicare services from Dr. Van Ess across 10 procedure codes in 2024, for 385 Medicare patients. Medicare paid $64,450 for them.
Medicare services, 2024932
Medicare patients385
Paid by Medicare$64,450
Procedure codes10
Dr. Van Ess' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5842024: 5525%
- Surgery
- 2023: 3562024: 3807%
Where Dr. Van Ess' Medicare services took place, 2024
- In an office92199%
- In a facility111%
Dr. Van Ess compared with the Missouri median for otologys and neurotology physicians, 2024
- Dr. Van Ess
- Missouri median
- Medicare services
- 932vs 75424% above
- Part D claims
- 836vs 2333.6 times
Medians across 14 otologys and neurotology physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Van Ess' 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. Van Ess?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Van Ess and other otologys and neurotology physicians in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark John Van Ess treated 385 Medicare patients in 2024, average age 74
CMS counts 385 Medicare patients who saw Dr. Van Ess in 2024. The largest group is 65 to 74, with 162 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Van Ess' median patient age at 70, with 59% women.
Medicare patients, 2024385
Average age74
Average risk score1.17
Also on Medicaid7%
Dr. Van Ess' Medicare patients by age, 2024
Dr. Van Ess' Medicare patients by sex, 2024
- Women20553%
- Men18047%
Chronic conditions among Dr. Van Ess' Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis47%
- Ischemic heart disease30%
- Diabetes27%
- Chronic kidney disease26%
- Mood disorders23%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Van Ess' 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
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark John Van Ess wrote 964 Medicare Part D claims in 2024
In 2024, Dr. Van Ess wrote 964 Medicare Part D claims for 375 patients. 96% of them were for generic drugs. CMS names the drug for 836 of them, across 21 drugs with 11 or more claims each, at $11,103 in total drug cost. In 2023, CMS named 650 claims across 18 drugs.
Part D claims, 2024964
Drugs named by CMS21
Total drug cost$11,103
Part D patients375
Dr. Van Ess' Part D claims by kind of drug, 2024
- Generic922 claims96%
- Brand-name42 claims4%
Dr. Van Ess' 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. Van Ess' Part D claims, 2024
- Opioids9%86 of 964 claims
- Antibiotics9%86 of 964 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: 6502024: 83629%
Drugs named by CMS: 21 in 2024, 18 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. Mark John Van Ess takes part in Medicare
Dr. Van Ess 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. Mark John Van Ess has 3 publications on record
Dmand AI links 3 papers to Dr. Van Ess. Dr. Van Ess' most frequent co-authors are Herbert Silverstein, MD and Benjamin John Wycherly, MD.
Papers3
Dr. Van Ess' most frequent co-authors
Recent publications by Dr. Van Ess
Ear Nose Throat J
2-PropanolCerumenEar Canal
Acoustic Impedance TestsAcoustic StimulationAction Potentials
See who Dr. Van Ess researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Van Ess works with, so you can find a warm path to the right otologys and neurotology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark John Van Ess received $1,360 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Van Ess from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Stryker Corporation paid the most, $364.
General payments to Dr. Van Ess by program year, 2016 to 2025
General payments to Dr. Van Ess by kind, 2016 to 2025
$1.4Kin total
- Food and beverage$1,31096%
- Travel and lodging$494%
Companies that paid Dr. Van Ess 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. Mark John Van Ess'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. Mark John Van Ess
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. Mark John Van Ess' NPI number?
Dr. Mark John Van Ess' NPI number is 1841404613. It was assigned on May 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark John Van Ess?
Dr. Mark John Van Ess is an otology and neurotology physician in Springfield, Missouri. The primary specialty in the NPI Registry is Otology & Neurotology Physician (taxonomy code 207YX0901X).
Where does Dr. Mark John Van Ess practice?
Dr. Van Ess practices at 1235 E Cherokee St, Springfield, MO 65804. Dr. Van Ess' primary practice is Mercy Hospital Springfield & Children's Mercy in Springfield, Missouri. Dmand AI also links Dr. Van Ess to 3 hospitals and 1 medical group.
What is Dr. Mark John Van Ess' office phone number?
The practice phone on file for Dr. Van Ess is (417) 820-2000.
What is Dr. Mark John Van Ess' medical license number?
Dr. Van Ess holds Missouri license 2009014117.
Which hospitals is Dr. Mark John Van Ess affiliated with?
Dr. Van Ess is affiliated with Mercy Hospital Springfield. Dmand AI links Dr. Van Ess to 3 more hospitals.
What medical group is Dr. Mark John Van Ess part of?
Dr. Van Ess is linked to Mercy Clinic Family Medicine - Hollister. Dmand AI links Dr. Van Ess to 1 more medical group.
Does Dr. Mark John Van Ess accept Medicare?
Yes. CMS data shows Dr. Van Ess billed Medicare for 932 services in 2024, and Dr. Van Ess accepts Medicare assignment.
How many Medicare patients does Dr. Mark John Van Ess see?
CMS counts 385 Medicare patients who saw Dr. Van Ess in 2024, with an average age of 74.
What services does Dr. Mark John Van Ess bill to Medicare?
In 2024, Dr. Van Ess' most billed Medicare services were office visit, established patient (99213), surgery: ear (69210) and office visit, established patient (99212).
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What drugs does Dr. Mark John Van Ess prescribe most?
In 2024 Medicare Part D data, Dr. Van Ess' most prescribed drugs by claims were Ofloxacin, Azelastine HCl and Hydrocodone-Acetaminophen.
Has Dr. Mark John Van Ess received payments from drug or device companies?
CMS Open Payments shows $1,360 in general payments to Dr. Van Ess from 10 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Mark John Van Ess been practicing?
Dr. Van Ess graduated from medical school in 2003, 23 years ago.
Does Dr. Mark John Van Ess do research?
Dmand AI links 3 publications to Dr. Van Ess.
Who does Dr. Mark John Van Ess publish with?
Dr. Van Ess' most frequent co-authors are Herbert Silverstein, MD (2 shared papers) and Benjamin John Wycherly, MD (1 shared paper).
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