Erin Matthew O'Tool, MD
Family Medicine Physician · Oak Creek, WI
Erin Matthew O'Tool, MD is a family medicine physician with a practice address in Oak Creek, Wisconsin, and NPI 1104050954, issued on May 8, 2009. Check the license (Wisconsin 55833, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Erin Matthew O'Tool
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 55833 WI
Self-reported in NPPES; status is on the state search - Practice location
- 8825 S Howell Ave, Oak Creek, WI 53154
- Phone
- (414) 647-3920
- Enumerated
- May 8, 2009
- Record last updated
- Jan 5, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (414) 465-4730
- Medicare enrollment
- Enrolled (PECOS I20120131000948); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 8825 S Howell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erin Matthew O'Tool in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 55833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% more Medicare Part D claims than the average family medicine physician in 2024
6,406 Medicare Part D claims for 476 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 107 claims were for opioids.
Most prescribed
- Atorvastatin Calcium610 claims
- Lisinopril331 claims
- Levothyroxine Sodium222 claims
- Losartan Potassium213 claims
- Amlodipine Besylate205 claims
- Metformin Hcl178 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $18.64
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ascension Medical Group-Southeast Wisconsin IncWauwatosa, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Matthew O'Tool among 3,765 family medicine physician records in Wisconsin
Erin Matthew O'Tool, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 35% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2007 among the 2,347 with a school on file
- Record last updated2016 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Oak Creek
They are 23 of the 541 NPPES records with a practice address in Oak Creek, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Oak Creek → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Andrew Brayer, MDOak Creek, WI 531541104921360
- Carol Brown, DOOak Creek, WI 531541457497927
- Duy-Bao Dinh, M.D.Oak Creek, WI 531541326334186
- Jothis Jose, M.D.Oak Creek, WI 531541306130737
- Mandeep Kalirao, M.D.Oak Creek, WI 531541750662813
- Mark Meier, M.D.Oak Creek, WI 531541396739827
- Shereen Mohis, M.D.Oak Creek, WI 531541043264609
- Kathleen Moloney, MDOak Creek, WI 531541811956451
Common questions
What is Erin Matthew O'Tool, MD's NPI number?
Erin Matthew O'Tool, MD's National Provider Identifier (NPI) is 1104050954, issued on May 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Erin Matthew O'Tool, MD located?
The NPPES record lists a practice address at 8825 S Howell Ave, Oak Creek, WI, 53154. Phone: (414) 647-3920. Providers update this record themselves, so call before visiting.
How can I verify Erin Matthew O'Tool, MD's license?
NPPES lists Wisconsin license number 55833, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Erin Matthew O'Tool, MD prescribe under Medicare Part D?
In 2024, Erin Matthew O'Tool, MD had 6,406 Medicare Part D claims for 476 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Erin Matthew O'Tool, MD's MIPS final score?
The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.