Dr. John David Nerva, MD
- Medicare services, 2024
- 98
- Medicare patients, 2024
- 68
- Part D claims, 2021
- 15
- Publications
- 48
- Hospital affiliations
- 2
- Practice address
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Practice phone
- Call (414) 805-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nerva'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. John David Nerva is a neurosurgeon in Milwaukee, Wisconsin
Dr. Nerva practices at Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Nerva's NPI, 1255652426, was assigned on June 22, 2010. Dr. Nerva graduated from University of Minnesota Medical School in 2010. Dr. Nerva holds Wisconsin license 76016.
- NPI
- 1255652426NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274825252
- NPI enumeration date
- June 22, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (414) 805-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John David Nerva practices at Froedtert Hospital in Milwaukee, Wisconsin
Dr. Nerva's primary practice is Froedtert Hospital, at 9200 W Wisconsin Ave, Milwaukee, WI 53226 in Milwaukee County. The practice phone is (414) 805-3000.
- Froedtert Hospital9200 W Wisconsin Ave, Milwaukee, WI 53226 · Milwaukee CountyPhone(414) 805-3000
Source: Dmand AI Affiliation Data
Dr. John David Nerva is affiliated with 2 sites of care and 2 medical groups
Dr. Nerva's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. Dr. Nerva is also affiliated with Froedtert Menomonee Falls Hospital. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI also links Dr. Nerva to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John David Nerva's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nerva practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Hospital | Available with a free account |
| +1 more site and 1 medical group | 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 Froedtert ThedaCare Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John David Nerva is one of 136 neurosurgeons in Wisconsin
Neurological surgery is Dr. Nerva's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Nerva is licensed in Wisconsin.
Specialties and state licenses
- Neurological surgery, WisconsinPrimary
Neurosurgeons near Dr. Nerva
Counts of neurosurgeons 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 David Nerva billed Medicare for 98 services in 2024
CMS data shows 98 Medicare services from Dr. Nerva across 5 procedure codes in 2024, for 68 Medicare patients. Medicare paid $10,471 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nerva's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1272024: 6846%
- Surgery
- 2023: 132024: 30131%
- Imaging
- 2023: 182024: 0100%
Dr. Nerva compared with the Wisconsin median for neurosurgeons, 2024
- Dr. Nerva
- Wisconsin median
- Medicare services
- 98vs 11515% below
- Medicare patients
- 68vs 10837% below
- Part D claims
- 15vs 2335% below
Medians across 123 neurosurgeons in Wisconsin with Dmand AI profiles that report each measure.
Dr. Nerva'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. Nerva and other neurosurgeons in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John David Nerva treated 68 Medicare patients in 2024, average age 74
CMS counts 68 Medicare patients who saw Dr. Nerva in 2024. The largest group is 65 to 74, with 27 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nerva's median patient age at 61, with 56% women.
Dr. Nerva's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nerva's Medicare patients by sex, 2024
- Women3551%
- Men3349%
Chronic conditions among Dr. Nerva's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA68%
- Arthritis53%
- Ischemic heart disease44%
- Mood disorders40%
- Anxiety38%
- Chronic kidney disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nerva's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John David Nerva wrote 15 Medicare Part D claims in 2021
In 2021, Dr. Nerva wrote 15 Medicare Part D claims. They cover 1 drug, with $69 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Dr. Nerva's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 112021: 1536%
Drugs named by CMS: 1 in 2021, 1 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. John David Nerva offers telehealth to Medicare patients
Dr. Nerva accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nerva as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John David Nerva has 48 publications on record
Dmand AI links 48 papers to Dr. Nerva, published from 2013 to 2025. 2017 was the busiest year, with 6. The most frequent topics are Embolization, Therapeutic, Intracranial Arteriovenous Malformations and Neurosurgical Procedures. Dr. Nerva has published most often in Neurosurgery. Dr. Nerva's most frequent co-authors are Louis J. Kim, MD, Michael Robert Levitt, MD and Ryan Patrick Morton, MD.
Dr. Nerva's papers by year, 2014 to 2025
Topics Dr. Nerva writes about most
- Embolization, Therapeutic
- Intracranial Arteriovenous Malformations
- Neurosurgical Procedures
- Intracranial Aneurysm
- Cerebral Angiography
- Radiosurgery
- Cadaver
- Cerebral Revascularization
Dr. Nerva's most frequent co-authors
- Louis J. Kim, MD17 shared papers
- Michael Robert Levitt, MD14 shared papers
- Ryan Patrick Morton, MD14 shared papers
Recent publications by Dr. Nerva
Folia Morphol (Warsz)
See who Dr. Nerva researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nerva works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John David Nerva received $8,590 in industry payments from 2016 to 2025
CMS Open Payments shows 118 general payments to Dr. Nerva from 9 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 54% of the total. Medtronic, Inc. paid the most, $3,175.
General payments to Dr. Nerva by program year, 2016 to 2025
General payments to Dr. Nerva by kind, 2016 to 2025
- Travel and lodging$4,64054%
- Food and beverage$3,95046%
Companies that paid Dr. Nerva the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John David Nerva graduated from University of Minnesota Medical School
Dr. Nerva graduated from University of Minnesota Medical School in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John David Nerva'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) |
| 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) |
| 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 David Nerva
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 David Nerva's NPI number?
Dr. John David Nerva's NPI number is 1255652426. It was assigned on June 22, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. John David Nerva?
Dr. John David Nerva is a neurosurgeon in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. John David Nerva practice?
Dr. Nerva practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Dr. Nerva's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Nerva to 1 medical group.
What is Dr. John David Nerva's office phone number?
The practice phone on file for Dr. Nerva is (414) 805-3000.
What is Dr. John David Nerva's medical license number?
Dr. Nerva holds Wisconsin license 76016.
Which hospitals is Dr. John David Nerva affiliated with?
Dr. Nerva practices at Froedtert Hospital in Milwaukee, Wisconsin. Dr. Nerva is also affiliated with Froedtert Menomonee Falls Hospital.
What medical group is Dr. John David Nerva part of?
Dr. Nerva is linked to Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI links Dr. Nerva to 1 more medical group.
Does Dr. John David Nerva accept Medicare?
Yes. CMS data shows Dr. Nerva billed Medicare for 98 services in 2024, and Dr. Nerva accepts Medicare assignment.
Does Dr. John David Nerva offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nerva as offering telehealth services.
How many Medicare patients does Dr. John David Nerva see?
CMS counts 68 Medicare patients who saw Dr. Nerva in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. John David Nerva bill to Medicare?
In 2024, Dr. Nerva's most billed Medicare services were hospital inpatient care (99222), hospital inpatient care (99232) and surgery: heart and blood vessels (36223).
Where did Dr. John David Nerva go to medical school?
Dr. Nerva graduated from University of Minnesota Medical School in 2010.
What drugs does Dr. John David Nerva prescribe most?
In 2021 Medicare Part D data, Dr. Nerva's most prescribed drugs by claims were Clopidogrel.
Has Dr. John David Nerva received payments from drug or device companies?
CMS Open Payments shows $8,590 in general payments to Dr. Nerva from 9 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. John David Nerva been practicing?
Dr. Nerva graduated from medical school in 2010, 16 years ago.
Does Dr. John David Nerva do research?
Dmand AI links 48 publications to Dr. Nerva, published from 2013 to 2025.
Who does Dr. John David Nerva publish with?
Dr. Nerva's most frequent co-authors are Louis J. Kim, MD (17 shared papers), Michael Robert Levitt, MD (14 shared papers) and Ryan Patrick Morton, MD (14 shared papers).
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