Oper Neurosurg (Hagerstown)
Cerebral Ventricle NeoplasmsConscious SedationFeasibility Studies
Dr. Neil R. Guenther, MD
NPI1609859404PAC ID4385549914
- Medicare services, 2024
- 1,016
- Medicare patients, 2024
- 225
- Part D claims, 2024
- 13
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 2900 W Oklahoma Ave, Milwaukee, WI 53215
- Practice phone
- Call (414) 649-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Guenther'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. Neil R. Guenther is an anesthesiologist in Milwaukee, Wisconsin
Dr. Guenther practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health.
Dr. Guenther's NPI, 1609859404, was assigned on November 25, 2005. Dr. Guenther graduated from Medical College of Wisconsin in 1983. Dr. Guenther holds Wisconsin license 25937-020.
NPI and contact details
- NPI
- 1609859404NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385549914
- NPI enumeration date
- November 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 649-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Neil R. Guenther practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin
Dr. Guenther's primary practice is Aurora St. Luke's Medical Center, at 2900 W Oklahoma Ave, Milwaukee, WI 53215 in Milwaukee County. The practice phone is (414) 649-6000.
- Aurora St. Luke's Medical Center2900 W Oklahoma Ave, Milwaukee, WI 53215 · Milwaukee CountyPhone(414) 649-6000
Source: Dmand AI Affiliation Data
Dr. Neil R. Guenther is affiliated with 2 sites of care and 1 medical group
Dr. Guenther's primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. The medical group on file is Aurora Medical Group. Dmand AI also links Dr. Guenther to 1 more therapy and rehab clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Neil R. Guenther's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Guenther practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aurora St. Luke's Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Guenther practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Advocate Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Neil R. Guenther is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Guenther's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Guenther is licensed in Wisconsin.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
Anesthesiologists near Dr. Guenther
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,001anesthesiologists in Wisconsin289anesthesiologists in Milwaukee67anesthesiologists at Aurora St. Luke's Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Neil R. Guenther billed Medicare for 1,016 services in 2024
CMS data shows 1,016 Medicare services from Dr. Guenther across 5 procedure codes in 2024, for 225 Medicare patients. Medicare paid $54,463 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20241,016
Medicare patients225
Paid by Medicare$54,463
Procedure codes5
Dr. Guenther's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,5972024: 1,00261%
- Surgery
- 2023: 222024: 1436%
- Anesthesia
- 2023: 422024: 0100%
Dr. Guenther compared with the Wisconsin median for anesthesiologists, 2024
- Dr. Guenther
- Wisconsin median
- Medicare services
- 1,016vs 4821.2 times
- Medicare patients
- 225vs 11989% above
- Part D claims
- 34vs 2821% above
Medians across 995 anesthesiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Guenther'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. Guenther?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Guenther and other anesthesiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Neil R. Guenther treated 225 Medicare patients in 2024, average age 69
CMS counts 225 Medicare patients who saw Dr. Guenther in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.97, 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. Guenther's median patient age at 65, with 46% women.
Medicare patients, 2024225
Average age69
Average risk score2.97
Also on Medicaid30%
Dr. Guenther's Medicare patients by age, 2024
Dr. Guenther's Medicare patients by sex, 2024
- Women12756%
- Men9844%
Chronic conditions among Dr. Guenther's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis68%
- Chronic kidney disease58%
- Anxiety52%
- Diabetes50%
- Heart failure48%
- Mood disorders48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Guenther's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Neil R. Guenther wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Guenther wrote 13 Medicare Part D claims. 92% of them were for generic drugs. They cover 2 drugs, with $1,413 in total drug cost. In 2022, CMS named 29 claims across 2 drugs.
Part D claims, 202413
Drugs named by CMS2
Total drug cost$1,413
Dr. Guenther's Part D claims by kind of drug, 2024
- Generic12 claims92%
- Brand-name and other1 claims8%
Dr. Guenther's most prescribed drugs by claims, 2023
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. Guenther's Part D claims, 2024
- Opioids85%11 of 13 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 292023: 3417%
Drugs named by CMS: 2 in 2023, 2 in 2022.
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. Neil R. Guenther takes part in Medicare
Dr. Guenther 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
Find anesthesiologists like Dr. Guenther by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Neil R. Guenther has 2 publications on record
Dmand AI links 2 papers to Dr. Guenther in 2020. Dr. Guenther's most frequent co-author is David C. Kress, MD.
Papers2
Dr. Guenther's most frequent co-authors
Recent publications by Dr. Guenther
See who Dr. Guenther researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Guenther works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Neil R. Guenther graduated from Medical College of Wisconsin
Dr. Guenther graduated from Medical College of Wisconsin in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Neil R. Guenther'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Neil R. Guenther
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. Neil R. Guenther's NPI number?
Dr. Neil R. Guenther's NPI number is 1609859404. It was assigned on November 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Neil R. Guenther?
Dr. Neil R. Guenther is an anesthesiologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Neil R. Guenther practice?
Dr. Guenther practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. Dr. Guenther's primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Dmand AI also links Dr. Guenther to 1 therapy and rehab clinic.
What is Dr. Neil R. Guenther's office phone number?
The practice phone on file for Dr. Guenther is (414) 649-6000.
What is Dr. Neil R. Guenther's medical license number?
Dr. Guenther holds Wisconsin license 25937-020.
Which hospitals is Dr. Neil R. Guenther affiliated with?
Dr. Guenther practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin.
What medical group is Dr. Neil R. Guenther part of?
Dr. Guenther is linked to Aurora Medical Group.
Does Dr. Neil R. Guenther accept Medicare?
Yes. CMS data shows Dr. Guenther billed Medicare for 1,016 services in 2024, and Dr. Guenther accepts Medicare assignment.
How many Medicare patients does Dr. Neil R. Guenther see?
CMS counts 225 Medicare patients who saw Dr. Guenther in 2024, with an average age of 69.
What services does Dr. Neil R. Guenther bill to Medicare?
In 2024, Dr. Guenther's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and hospital inpatient care (99231).
Show 5 more questionsShow fewer questions
Where did Dr. Neil R. Guenther go to medical school?
Dr. Guenther graduated from Medical College of Wisconsin in 1983.
What drugs does Dr. Neil R. Guenther prescribe most?
In 2023 Medicare Part D data, Dr. Guenther's most prescribed drugs by claims were Oxycodone-Acetaminophen and Naloxone HCl.
How long has Dr. Neil R. Guenther been practicing?
Dr. Guenther graduated from medical school in 1983, 43 years ago.
Does Dr. Neil R. Guenther do research?
Dmand AI links 2 publications to Dr. Guenther.
Who does Dr. Neil R. Guenther publish with?
Dr. Guenther's most frequent co-authors are David C. Kress, MD (1 shared paper).
Selling to anesthesiology practices?
See anesthesiologists in Wisconsin 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