Acta Anaesthesiol Scand
Analgesics, OpioidBlood PressureCats
Dr. Aaron Matthew Fields, MD
NPI1982896437PAC ID3476875345
- Medicare services, 2024
- 153
- Medicare patients, 2024
- 125
- Publications
- 13
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- Practice address
- 515 22nd Ave, Monroe, WI 53566
- Practice phone
- Call (608) 324-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fields' 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. Aaron Matthew Fields is an anesthesiologist in Monroe, Wisconsin
Dr. Fields practices at SSM Health Monroe Hospital in Monroe, Wisconsin, part of SSM Health Care.
Dr. Fields' NPI, 1982896437, was assigned on August 17, 2007. Dr. Fields graduated from Texas Tech University Health Sciences Center School of Medicine in 2003. Dr. Fields holds Texas license Q0255.
NPI and contact details
- NPI
- 1982896437NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476875345
- NPI enumeration date
- August 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 324-2000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Aaron Matthew Fields practices at SSM Health Monroe Hospital in Monroe, Wisconsin
Dr. Fields' primary practice is SSM Health Monroe Hospital, at 515 22nd Ave, Monroe, WI 53566 in Green County. The practice phone is (608) 324-2000.
- SSM Health Monroe Hospital515 22nd Ave, Monroe, WI 53566 · Green CountyPhone(608) 324-2000
Source: Dmand AI Affiliation Data
Dr. Aaron Matthew Fields is affiliated with 8 sites of care and 4 medical groups
Dr. Fields' primary practice is SSM Health Monroe Hospital in Monroe, Wisconsin, part of SSM Health Care. Dr. Fields is also affiliated with Methodist Hospital. The medical group on file is SSM Health Monroe Clinic Medical Group. Dmand AI also links Dr. Fields to 1 more hospital, 3 group practices and clinics, 3 medical groups, 1 home health agency and 1 hospice, each named with a free account. Dr. Fields' employer is on file too: a hospital.
Methodist HospitalSSM Health Monroe Clinic Medical Group1 hospitalName with a free account3 group practices and clinicsNames with a free account3 medical groupsNames with a free account1 home health agencyName with a free account1 hospiceName with a free accountEmployer: hospitalName with a free account
See all 12 affiliations for Dr. FieldsSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Aaron Matthew Fields' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fields practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health Monroe Hospital | Available with a free account |
| +7 more sites and 3 medical groups | 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. Fields practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across SSM Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Aaron Matthew Fields is one of 1,001 anesthesiologists in Wisconsin
Anesthesiology is Dr. Fields' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Fields is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Fields' licenses on file in 3 states: Texas, Wisconsin and Hawaii.
Specialties and state licenses
- Anesthesiology, TexasPrimary
- Critical care medicine (anesthesiology), Wisconsin
- Hawaii license
Anesthesiologists near Dr. Fields
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,001anesthesiologists in Wisconsin
5anesthesiologists in Monroe
4anesthesiologists at SSM Health Monroe HospitalSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Aaron Matthew Fields billed Medicare for 153 services in 2024
CMS data shows 153 Medicare services from Dr. Fields across 7 procedure codes in 2024, for 125 Medicare patients. Medicare paid $5,385 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024153
Medicare patients125
Paid by Medicare$5,385
Procedure codes7
Dr. Fields' Medicare services by type, 2024
- Surgery86
- Imaging55
- Anesthesia12
Dr. Fields compared with the Wisconsin median for anesthesiologists, 2024
- Dr. Fields
- Wisconsin median
- Medicare services
- 153vs 483.2 times
- Medicare patients
- 125vs 1195% above
Medians across 995 anesthesiologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Fields' 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. Fields?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fields and other anesthesiologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Aaron Matthew Fields treated 125 Medicare patients in 2024, average age 75
CMS counts 125 Medicare patients who saw Dr. Fields in 2024. The largest group is 75 to 84, with 55 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.18, 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. Fields' median patient age at 64, with 57% women.
Medicare patients, 2024125
Average age75
Average risk score2.18
Also on Medicaid13%
Dr. Fields' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fields' Medicare patients by sex, 2024
- Women6451%
- Men6149%
Chronic conditions among Dr. Fields' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease50%
- Diabetes46%
- Chronic kidney disease42%
- Mood disorders38%
- Atrial fibrillation37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fields' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women57%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Aaron Matthew Fields scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Fields for performance year 2024, reported as part of a group. Dr. Fields accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Fields' MIPS scores, performance year 2024
- 89of 100Final score
- 91.3of 100Quality
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Find anesthesiologists like Dr. Fields 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. Aaron Matthew Fields has 13 publications on record
Dmand AI links 13 papers to Dr. Fields in 2008. The most frequent topics are Cats, Pulmonary Circulation and Vasodilator Agents. Dr. Fields' most frequent co-authors are Alan D. Kaye, MD, Jason Marshall Hoover, MD and Amir R. Baluch, MD.
Papers13
Topics Dr. Fields writes about most
- Cats
- Pulmonary Circulation
- Vasodilator Agents
- Blood Pressure
- Hydrazones
- Lung
- Nitric Oxide
- Ornithine
Dr. Fields' most frequent co-authors
- Alan D. Kaye, MD5 shared papers
- Jason Marshall Hoover, MD2 shared papers
- Amir R. Baluch, MD1 shared paper
Recent publications by Dr. Fields
Anesth Analg
15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid3',5'-Cyclic-AMP PhosphodiesterasesATP-Binding Cassette Transporters
Ambulatory Surgical ProceduresCommunicationComprehension
CalciumCardiopulmonary BypassHeart Failure
See who Dr. Fields researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fields 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. Aaron Matthew Fields received $51 in industry payments in 2025
CMS Open Payments shows 3 general payments to Dr. Fields from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $51.
Companies that paid Dr. Fields the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Aaron Matthew Fields graduated from Texas Tech University Health Sciences Center School of Medicine
Dr. Fields graduated from Texas Tech University Health Sciences Center School of Medicine in 2003.
- Medical school
- Board certified in anesthesiology
- Board certified in critical care medicine
Source: Dmand AI Professional Profile Data
Dr. Aaron Matthew Fields accepts plans from 19 insurance carriers
Dr. Fields is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- +11 more carriersWith a free account
Plan types Dr. Fields accepts, by number of carriers
- PPO11
- HMO10
- Medicare7
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Aaron Matthew Fields'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Aaron Matthew Fields
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. Aaron Matthew Fields' NPI number?
Dr. Aaron Matthew Fields' NPI number is 1982896437. It was assigned on August 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Aaron Matthew Fields?
Dr. Aaron Matthew Fields is an anesthesiologist in Monroe, Wisconsin. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Aaron Matthew Fields practice?
Dr. Fields practices at 515 22nd Ave, Monroe, WI 53566. Dr. Fields' primary practice is SSM Health Monroe Hospital in Monroe, Wisconsin, part of SSM Health Care. Dmand AI also links Dr. Fields to 1 hospital, 3 group practices and clinics, 3 medical groups, 1 home health agency and 1 hospice.
What is Dr. Aaron Matthew Fields' office phone number?
The practice phone on file for Dr. Fields is (608) 324-2000.
What is Dr. Aaron Matthew Fields' medical license number?
Dr. Fields holds Texas license Q0255, one of the licenses on file in 3 states.
Which states has Dr. Aaron Matthew Fields been licensed in?
Dmand AI has state licenses on file for Dr. Fields in Texas (2014 to 2027), Wisconsin (2005 to 2025) and Hawaii (2011 to 2016).
Which hospitals is Dr. Aaron Matthew Fields affiliated with?
Dr. Fields practices at SSM Health Monroe Hospital in Monroe, Wisconsin. Dr. Fields is also affiliated with Methodist Hospital. Dmand AI links Dr. Fields to 1 more hospital.
What medical group is Dr. Aaron Matthew Fields part of?
Dr. Fields is linked to SSM Health Monroe Clinic Medical Group. Dmand AI links Dr. Fields to 3 more medical groups.
Does Dr. Aaron Matthew Fields accept Medicare?
Yes. CMS data shows Dr. Fields billed Medicare for 153 services in 2024, and Dr. Fields accepts Medicare assignment.
What is Dr. Aaron Matthew Fields' MIPS score?
Dr. Fields' MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Aaron Matthew Fields see?
CMS counts 125 Medicare patients who saw Dr. Fields in 2024, with an average age of 75.
Is Dr. Aaron Matthew Fields board certified?
Yes. Dr. Fields is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Aaron Matthew Fields bill to Medicare?
In 2024, Dr. Fields' most billed Medicare services were ultrasound (76937), surgery: heart and blood vessels (36620) and surgery: brain, spine and nerves (64999).
Where did Dr. Aaron Matthew Fields go to medical school?
Dr. Fields graduated from Texas Tech University Health Sciences Center School of Medicine in 2003.
Has Dr. Aaron Matthew Fields received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Dr. Fields from 1 company from 2025 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Aaron Matthew Fields been practicing?
Dr. Fields graduated from medical school in 2003, 23 years ago.
Does Dr. Aaron Matthew Fields do research?
Dmand AI links 13 publications to Dr. Fields.
Who does Dr. Aaron Matthew Fields publish with?
Dr. Fields' most frequent co-authors are Alan D. Kaye, MD (5 shared papers), Jason Marshall Hoover, MD (2 shared papers) and Amir R. Baluch, MD (1 shared paper).
What insurance does Dr. Aaron Matthew Fields accept?
Dr. Fields is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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