Dr. John D. Simmons, MD
- Medicare services, 2024
- 15
- Medicare patients, 2024
- 124
- Hospital affiliations
- 2
- Industry payments
- $207
- Medical group
- 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. Simmons' professional email, personal email and mobile number
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Dr. John D. Simmons is an anesthesiologist in Milwaukee, Wisconsin
Dr. Simmons practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health.
Dr. Simmons' NPI, 1821073529, was assigned on December 14, 2005. Dr. Simmons graduated from Medical College of Wisconsin in 1991. Dr. Simmons holds Wisconsin license 33430-020.
- NPI
- 1821073529NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214918234
- NPI enumeration date
- December 14, 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
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John D. Simmons practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin
Dr. Simmons' 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. John D. Simmons is affiliated with 3 sites of care and 1 medical group
Dr. Simmons' primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Dr. Simmons is also affiliated with Aurora Medical Center - Burlington. The medical group on file is Aurora Medical Group. Dmand AI also links Dr. Simmons 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. John D. Simmons' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simmons practices, 3 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 |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John D. Simmons is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Simmons' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Simmons is licensed in Wisconsin.
Specialties and state licenses
- Anesthesiology, WisconsinPrimary
Anesthesiologists near Dr. Simmons
Counts of anesthesiologists 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 D. Simmons billed Medicare for 15 services in 2024
CMS data shows 15 Medicare services from Dr. Simmons across 1 procedure code in 2024, for 124 Medicare patients. Medicare paid $415 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Simmons' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 162024: 156%
- Anesthesia
- 2023: 362024: 0100%
Dr. Simmons compared with the Wisconsin median for anesthesiologists, 2024
- Dr. Simmons
- Wisconsin median
- Medicare services
- 15vs 4869% below
- Medicare patients
- 124vs 119Close to median
Medians across 995 anesthesiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Simmons' 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. Simmons?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simmons and other anesthesiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John D. Simmons treated 124 Medicare patients in 2024, average age 71
CMS counts 124 Medicare patients who saw Dr. Simmons in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.06, 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. Simmons' median patient age at 69, with 46% women.
Dr. Simmons' Medicare patients by age, 2024
Dr. Simmons' Medicare patients by sex, 2024
- Women6653%
- Men5847%
Chronic conditions among Dr. Simmons' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Chronic kidney disease45%
- Ischemic heart disease38%
- Diabetes37%
- Heart failure34%
- Atrial fibrillation30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Simmons' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John D. Simmons takes part in Medicare
Dr. Simmons 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. John D. Simmons received $207 in industry payments from 2016 to 2020
CMS Open Payments shows 3 general payments to Dr. Simmons from 2 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 92% of the total. Merck Sharp & Dohme Corporation paid the most, $111.
General payments to Dr. Simmons by program year, 2016 to 2020
General payments to Dr. Simmons by kind, 2016 to 2020
- Food and beverage$19292%
- Education$168%
Companies that paid Dr. Simmons the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John D. Simmons graduated from Medical College of Wisconsin
Dr. Simmons graduated from Medical College of Wisconsin in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John D. Simmons'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) |
| 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. John D. Simmons
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What is Dr. John D. Simmons' NPI number?
Dr. John D. Simmons' NPI number is 1821073529. It was assigned on December 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John D. Simmons?
Dr. John D. Simmons is an anesthesiologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John D. Simmons practice?
Dr. Simmons practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. Dr. Simmons' primary practice is Aurora St. Luke's Medical Center in Milwaukee, Wisconsin, part of Advocate Health. Dmand AI also links Dr. Simmons to 1 therapy and rehab clinic.
What is Dr. John D. Simmons' office phone number?
The practice phone on file for Dr. Simmons is (414) 649-6000.
What is Dr. John D. Simmons' medical license number?
Dr. Simmons holds Wisconsin license 33430-020.
Which hospitals is Dr. John D. Simmons affiliated with?
Dr. Simmons practices at Aurora St. Luke's Medical Center in Milwaukee, Wisconsin. Dr. Simmons is also affiliated with Aurora Medical Center - Burlington.
What medical group is Dr. John D. Simmons part of?
Dr. Simmons is linked to Aurora Medical Group.
Does Dr. John D. Simmons accept Medicare?
Yes. CMS data shows Dr. Simmons billed Medicare for 15 services in 2024, and Dr. Simmons accepts Medicare assignment.
How many Medicare patients does Dr. John D. Simmons see?
CMS counts 124 Medicare patients who saw Dr. Simmons in 2024, with an average age of 71.
What services does Dr. John D. Simmons bill to Medicare?
In 2024, Dr. Simmons' most billed Medicare services were surgery: heart and blood vessels (36620).
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Where did Dr. John D. Simmons go to medical school?
Dr. Simmons graduated from Medical College of Wisconsin in 1991.
Has Dr. John D. Simmons received payments from drug or device companies?
CMS Open Payments shows $207 in general payments to Dr. Simmons from 2 companies from 2016 to 2020. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. John D. Simmons been practicing?
Dr. Simmons graduated from medical school in 1991, 35 years ago.
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