Patrick Craig Ayer, MD
Emergency Medicine Physician · Eau Claire, WI
Patrick Craig Ayer, MD is an emergency medicine physician with a practice address in Eau Claire, Wisconsin, and NPI 1659358174, issued on Dec 27, 2005. Check the license (Wisconsin 20586, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Patrick Craig Ayer
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20586 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4012 White Pine Drive East, Eau Claire, WI 54701
- Phone
- (715) 836-9542
- Enumerated
- Dec 27, 2005
- Record last updated
- Nov 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- APPR WI
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Verify Patrick Craig Ayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 20586Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Patrick Craig Ayer among 1,464 emergency medicine physician records in Wisconsin
Patrick Craig Ayer, MD is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2013 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
66 emergency medicine physician records list a practice address in Eau Claire
They are 66 of the 3,085 NPPES records with a practice address in Eau Claire, and 1,464 emergency medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,464 in Wisconsin → Every provider in Eau Claire → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jeremy Baker, MDEau Claire, WI 547011568043222
- David Bardsley, M.D.Eau Claire, WI 547011386693711
- Cheryl Colbenson, D.O.Eau Claire, WI 547011114959970
- Kirk Dahl, MDEau Claire, WI 547011760440242
- Stanley Daniel, M.D.Eau Claire, WI 547011861535734
- Steven Hall, M.D.Eau Claire, WI 547011265531651
- William Haselow, M.D.Eau Claire, WI 547011811942444
- Humayun Khan, MDEau Claire, WI 547011982705505
Common questions
What is Patrick Craig Ayer, MD's NPI number?
Patrick Craig Ayer, MD's National Provider Identifier (NPI) is 1659358174, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Craig Ayer, MD located?
The NPPES record lists a practice address at 4012 White Pine Drive East, Eau Claire, WI, 54701. Phone: (715) 836-9542. Providers update this record themselves, so call before visiting.
How can I verify Patrick Craig Ayer, MD's license?
NPPES lists Wisconsin license number 20586, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.