NPPES file of Aug 9, 2026

Blake Steven Holbrook, MD

Emergency Medicine Physician · Eau Claire, WI

Blake Steven Holbrook, MD is an emergency medicine physician with a practice address in Eau Claire, Wisconsin, and NPI 1497331235, issued on Mar 22, 2021. Check the license (Wisconsin 83766, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497331235
Name
Blake Steven Holbrook
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
83766 WI
Self-reported in NPPES; status is on the state search
Practice location
1400 Bellinger St, Eau Claire, WI 54703
Phone
(715) 838-5222
Enumerated
Mar 22, 2021
Record last updated
Aug 16, 2024
Medicare enrollment
Enrolled (PECOS I20240827001260); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 2021
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1400 Bellinger St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ajit Abraham, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1487899936
  2. Gina Adel, MDRheumatology Physician1841231727
  3. Adeniyi Adenote, PT, DPTPhysical Therapist1114564333
  4. Kirsten Aexel Handley, CNMAdvanced Practice Midwife1952523078
  5. Andrea Aguayo, PHARMDPharmacist1003507492
  6. Boshra Al Ibraheem, MDFamily Medicine Physician1376399444

Verify Blake Steven Holbrook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 83766
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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61% fewer Medicare Part D claims than the average emergency medicine physician in 2024

89 Medicare Part D claims for 58 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Blake Holbrook89
  2. Specialty average226

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.

Industry payments in 2024: $28.95

1 payment: food and beverage; the largest payer was Avanos Medical. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Blake Holbrook$28.95
  2. Specialty average$953.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI
  2. Mayo Clinic Health System-Southwest Wisconsin Region IncLa Crosse, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Blake Steven Holbrook among 1,464 emergency medicine physician records in Wisconsin

Blake Steven Holbrook, 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. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2021 · median 2011 among the 844 with a school on file
  • Record last updated2024 · 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.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Alex Beuning, MDEau Claire, WI 547031295715860
  2. Susan Cullinan, MDEau Claire, WI 547031215995980
  3. Michael Hartman, MDEau Claire, WI 547031962450544
  4. Paul Horvath, M.D.Eau Claire, WI 547031912029141
  5. John Jacobson, MDEau Claire, WI 547031508829748
  6. Paul Krantz, D.O.Eau Claire, WI 547031447289053
  7. Sheffey Massey, DOEau Claire, WI 547031609834365
  8. Matthew Olmstead, D.O.Eau Claire, WI 547031093836843

Common questions

What is Blake Steven Holbrook, MD's NPI number?

Blake Steven Holbrook, MD's National Provider Identifier (NPI) is 1497331235, issued on Mar 22, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Blake Steven Holbrook, MD located?

The NPPES record lists a practice address at 1400 Bellinger St, Eau Claire, WI, 54703. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.

How can I verify Blake Steven Holbrook, MD's license?

NPPES lists Wisconsin license number 83766, 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 Blake Steven Holbrook, MD prescribe under Medicare Part D?

In 2024, Blake Steven Holbrook, MD had 89 Medicare Part D claims for 58 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

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.