Dr. Ann B. Nattinger, MD
- Medicare services, 2016
- 43
- Part D claims, 2017
- 12
- Publications
- 73
- Hospital affiliations
- 1
- Medical group
- 1
- 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
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Dr. Ann B. Nattinger is an internist in Milwaukee, Wisconsin
Dr. Nattinger practices at Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Nattinger's NPI, 1598717266, was assigned on May 17, 2006. Dr. Nattinger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1983. Dr. Nattinger holds Wisconsin license 29279.
- NPI
- 1598717266NPI Registry (opens in a new tab)
- NPI enumeration date
- May 17, 2006
- NPI status
- Active
- Practice phone
- (414) 805-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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. Ann B. Nattinger practices at Froedtert Hospital in Milwaukee, Wisconsin
Dr. Nattinger'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
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ann B. Nattinger is affiliated with 1 site of care and 1 medical group
Dr. Nattinger's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ann B. Nattinger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nattinger practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Hospital | 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. Ann B. Nattinger is one of 1,675 internists in Wisconsin
Internal medicine is Dr. Nattinger's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nattinger is licensed in Wisconsin.
Specialties and state licenses
- Internal medicine, WisconsinPrimary
Internists near Dr. Nattinger
Counts of internists 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 B. Nattinger billed Medicare for 43 services in 2016
CMS data shows 43 Medicare services from Dr. Nattinger across 1 procedure code in 2016. Medicare paid $3,421 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nattinger compared with the Wisconsin median for internists, 2016
- Dr. Nattinger
- Wisconsin median
- Medicare services
- 43vs 45791% below
- Part D claims
- 12vs 43397% below
Medians across 1,658 internists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Nattinger's most billed Medicare procedure codes, 2016
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. Nattinger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nattinger and other internists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ann B. Nattinger's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Nattinger's median patient age at 65, with 50% women.
Dr. Nattinger'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
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Ann B. Nattinger wrote 12 Medicare Part D claims in 2017
In 2017, Dr. Nattinger wrote 12 Medicare Part D claims. They cover 1 drug, with $697 in total drug cost. In 2016, CMS named 33 claims across 2 drugs.
Dr. Nattinger's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 332017: 1264%
Drugs named by CMS: 1 in 2017, 2 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ann B. Nattinger has 73 publications on record
Dmand AI links 73 papers to Dr. Nattinger, published from 2010 to 2024. 2019 was the busiest year, with 6. The most frequent topics are Breast Neoplasms, Medicare and Socioeconomic Factors. Dr. Nattinger has published most often in WMJ. Dr. Nattinger's most frequent co-authors are Tina W. Yen, MD, John A. Charlson, MD and Marjorie C. Wang, MD.
Dr. Nattinger's papers by year, 2015 to 2024
Topics Dr. Nattinger writes about most
- Breast Neoplasms
- Medicare
- Socioeconomic Factors
- Wisconsin
- Residence Characteristics
- SEER Program
- Clinical Competence
- COVID-19
Dr. Nattinger's most frequent co-authors
- Tina W. Yen, MD20 shared papers
- John A. Charlson, MD4 shared papers
- Marjorie C. Wang, MD4 shared papers
Recent publications by Dr. Nattinger
See who Dr. Nattinger researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nattinger works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ann B. Nattinger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Nattinger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ann B. Nattinger'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Ann B. Nattinger
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 B. Nattinger's NPI number?
Dr. Ann B. Nattinger's NPI number is 1598717266. It was assigned on May 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ann B. Nattinger?
Dr. Ann B. Nattinger is an internist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ann B. Nattinger practice?
Dr. Nattinger practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Dr. Nattinger's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
What is Dr. Ann B. Nattinger's office phone number?
The practice phone on file for Dr. Nattinger is (414) 805-3000.
What is Dr. Ann B. Nattinger's medical license number?
Dr. Nattinger holds Wisconsin license 29279.
Which hospitals is Dr. Ann B. Nattinger affiliated with?
Dr. Nattinger practices at Froedtert Hospital in Milwaukee, Wisconsin.
What medical group is Dr. Ann B. Nattinger part of?
Dr. Nattinger is linked to Froedtert & the Medical College of Wisconsin Community Physicians.
Does Dr. Ann B. Nattinger accept Medicare?
Yes. CMS data shows Dr. Nattinger billed Medicare for 43 services in 2016.
What services does Dr. Ann B. Nattinger bill to Medicare?
In 2016, Dr. Nattinger's most billed Medicare services were hospital inpatient care (99233).
Where did Dr. Ann B. Nattinger go to medical school?
Dr. Nattinger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1983.
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What drugs does Dr. Ann B. Nattinger prescribe most?
In 2017 Medicare Part D data, Dr. Nattinger's most prescribed drugs by claims were Proair Hfa.
How long has Dr. Ann B. Nattinger been practicing?
Dr. Nattinger graduated from medical school in 1983, 43 years ago.
Does Dr. Ann B. Nattinger do research?
Dmand AI links 73 publications to Dr. Nattinger, published from 2010 to 2024.
Who does Dr. Ann B. Nattinger publish with?
Dr. Nattinger's most frequent co-authors are Tina W. Yen, MD (20 shared papers), John A. Charlson, MD (4 shared papers) and Marjorie C. Wang, MD (4 shared papers).
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