Dr. Ann M. Gierl, DO
- Medicare services, 2024
- 34
- Medicare patients, 2024
- 44
- Part D claims, 2024
- 19
- Hospital affiliations
- 1
- Industry payments
- $189
- Practice address
- 601 Grove Ave, Wild Rose, WI 54984
- Practice phone
- Call (920) 622-3257
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gierl'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. Ann M. Gierl is a rheumatologist in Wild Rose, Wisconsin
Dr. Gierl practices at ThedaCare Medical Center-Wild Rose in Wild Rose, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Gierl's NPI, 1558356022, was assigned on September 12, 2005. Dr. Gierl graduated from Des Moines University in 1985. Dr. Gierl holds Wisconsin license 32190.
- NPI
- 1558356022NPI Registry (opens in a new tab)
- NPI enumeration date
- September 12, 2005
- NPI status
- Active
- Practice phone
- (920) 622-3257
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ann M. Gierl practices at ThedaCare Medical Center-Wild Rose in Wild Rose, Wisconsin
Dr. Gierl's primary practice is ThedaCare Medical Center-Wild Rose, at 601 Grove Ave, Wild Rose, WI 54984 in Waushara County. The practice phone is (920) 622-3257.
- ThedaCare Medical Center-Wild Rose601 Grove Ave, Wild Rose, WI 54984 · Waushara CountyPhone(920) 622-3257
Source: Dmand AI Affiliation Data
Dr. Ann M. Gierl is affiliated with 2 sites of care and 1 medical group
Dr. Gierl's primary practice is ThedaCare Medical Center-Wild Rose in Wild Rose, Wisconsin, part of Froedtert ThedaCare Health. The medical group on file is Ascension Medical Group WI - Main Street - Family Medicine. Dmand AI also links Dr. Gierl to 1 more group practice or 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. Ann M. Gierl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gierl practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ThedaCare Medical Center-Wild Rose | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ann M. Gierl is one of 138 rheumatologists in Wisconsin
Rheumatology is Dr. Gierl's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Gierl is board certified in internal medicine by the American Board of Internal Medicine. Dr. Gierl is licensed in Wisconsin.
Specialties and state licenses
- Rheumatology, WisconsinPrimary
Clinical focus
Dmand AI lists joint arthropathy and muscle pain, fibromyalgia, and limb pain among the conditions Dr. Gierl treats.
Rheumatologists near Dr. Gierl
Counts of rheumatologists 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. Ann M. Gierl billed Medicare for 34 services in 2024
CMS data shows 34 Medicare services from Dr. Gierl across 1 procedure code in 2024, for 44 Medicare patients. Medicare paid $437 for them. Every service was in an office.
Dr. Gierl's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 472024: 3428%
Dr. Gierl compared with the Wisconsin median for rheumatologists, 2024
- Dr. Gierl
- Wisconsin median
- Medicare services
- 34vs 51493% below
- Medicare patients
- 44vs 19978% below
- Part D claims
- 484vs 1,04053% below
Medians across 143 rheumatologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Gierl'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. Gierl?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gierl and other rheumatologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ann M. Gierl treated 44 Medicare patients in 2024, average age 71
CMS counts 44 Medicare patients who saw Dr. Gierl in 2024. The largest group is 65 to 74, with 30 patients. 75% of them have high cholesterol, and 61% have high blood pressure. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gierl's median patient age at 74, with 81% women.
Dr. Gierl's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Gierl's Medicare patients, 2024
- High cholesterol75%
- High blood pressure61%
- Arthritis41%
- Osteoporosis34%
- Mood disorders30%
- Anxiety25%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gierl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women81%
- Men19%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ann M. Gierl wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Gierl wrote 19 Medicare Part D claims. 68% of them were for generic drugs. They cover 14 drugs, with $23,413 in total drug cost. In 2022, CMS named 4,303 claims across 60 drugs.
Dr. Gierl's Part D claims by kind of drug, 2024
- Generic13 claims68%
- Brand-name and other6 claims32%
Dr. Gierl'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 4,3032023: 48489%
Drugs named by CMS: 14 in 2023, 60 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
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Dr. Ann M. Gierl received $189 in industry payments from 2016 to 2018
CMS Open Payments shows 7 general payments to Dr. Gierl from 2 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $164.
General payments to Dr. Gierl by program year, 2016 to 2018
Companies that paid Dr. Gierl the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ann M. Gierl has 1 award and honors on record
Dmand AI lists 1 award for Dr. Gierl.
Awards and honors for Dr. Gierl
- Undated
- ACR Fellow
Source: Dmand AI Professional Profile Data
Dr. Ann M. Gierl graduated from Des Moines University
Dr. Gierl graduated from Des Moines University in 1985. Dr. Gierl is a member of ACR and AOA.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
- Board certified in 1986 - 1990
- Board certified in 1989 - 1992
- Board certified in 1991 - 2025
Source: Dmand AI Professional Profile Data
Dr. Ann M. Gierl accepts plans from 5 insurance carriers
Dr. Gierl is in network with 5 carriers, including HCSC, Molina and Regence Health Plans. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
- WI State Medicaid
Plan types Dr. Gierl accepts, by number of carriers
- Medicare4
- PPO2
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ann M. Gierl'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Ann M. Gierl
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. Ann M. Gierl's NPI number?
Dr. Ann M. Gierl's NPI number is 1558356022. It was assigned on September 12, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ann M. Gierl?
Dr. Ann M. Gierl is a rheumatologist in Wild Rose, Wisconsin. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Ann M. Gierl practice?
Dr. Gierl practices at 601 Grove Ave, Wild Rose, WI 54984. Dr. Gierl's primary practice is ThedaCare Medical Center-Wild Rose in Wild Rose, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Gierl to 1 group practice or clinic.
What is Dr. Ann M. Gierl's office phone number?
The practice phone on file for Dr. Gierl is (920) 622-3257.
What is Dr. Ann M. Gierl's medical license number?
Dr. Gierl holds Wisconsin license 32190.
Which hospitals is Dr. Ann M. Gierl affiliated with?
Dr. Gierl practices at ThedaCare Medical Center-Wild Rose in Wild Rose, Wisconsin.
What medical group is Dr. Ann M. Gierl part of?
Dr. Gierl is linked to Ascension Medical Group WI - Main Street - Family Medicine.
Does Dr. Ann M. Gierl accept Medicare?
Yes. CMS data shows Dr. Gierl billed Medicare for 34 services in 2024.
How many Medicare patients does Dr. Ann M. Gierl see?
CMS counts 44 Medicare patients who saw Dr. Gierl in 2024, with an average age of 71.
Is Dr. Ann M. Gierl board certified?
Yes. Dr. Gierl is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Ann M. Gierl bill to Medicare?
In 2024, Dr. Gierl's most billed Medicare services were radiation oncology (77080).
Where did Dr. Ann M. Gierl go to medical school?
Dr. Gierl graduated from Des Moines University in 1985.
What drugs does Dr. Ann M. Gierl prescribe most?
In 2023 Medicare Part D data, Dr. Gierl's most prescribed drugs by claims were Methotrexate, Prednisone and Hydroxychloroquine Sulfate.
Has Dr. Ann M. Gierl received payments from drug or device companies?
CMS Open Payments shows $189 in general payments to Dr. Gierl from 2 companies from 2016 to 2018. The largest total came from Abbvie Inc.
How long has Dr. Ann M. Gierl been practicing?
Dr. Gierl graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Ann M. Gierl accept?
Dr. Gierl is in network with 5 carriers, including HCSC, Molina and Regence Health Plans. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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