NPPES file of Aug 9, 2026

Brook Andrew Woolley, M.D.

Emergency Medicine Physician · Walnut Creek, CA

Brook Andrew Woolley, M.D. is an emergency medicine physician with a practice address in Walnut Creek, California, and NPI 1003039538, issued on Apr 11, 2007. Check the license (California A102474, as entered in NPPES) on the Medical Board of California; 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
1003039538
Name
Brook Andrew Woolley
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
A102474 CA
4301085955 MI
Self-reported in NPPES; status is on the state search
Practice location
1425 S Main St, Walnut Creek, CA 94596
Phone
(925) 295-5100
Enumerated
Apr 11, 2007
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081007000431); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2005
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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8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →

Also registered at 1425 S Main St

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

  1. Eric AaserudeEmergency Medicine Physician1811491194
  2. Derek Abbassi, MDObstetrics & Gynecology Physician1841364155
  3. Peter Ackerman, MDEmergency Medicine Physician1427435023
  4. Aaron Mark Acosta, DOEmergency Medicine Physician1538789987
  5. Basil Adad, MDOtolaryngology Physician1487732574
  6. Derek Ailes, M.D.Emergency Medical Services (Emergency Medicine) Physician1992001804

Verify Brook Andrew Woolley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A102474    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 California license search

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11% fewer Medicare Part D claims than the average emergency medicine physician in 2024

202 Medicare Part D claims for 148 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 30 claims were for opioids.

  1. Brook Woolley202
  2. Specialty average226

Most prescribed

  1. Cefadroxil21 claims
  2. Hydrocodone-Acetaminophen21 claims
  3. Ondansetron Odt16 claims
  4. Amoxicillin-Clavulanate Potass15 claims
  5. Doxycycline Monohydrate11 claims
  6. Prednisone11 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncWalnut Creek, CA

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

Brook Andrew Woolley among 7,751 emergency medicine physician records in California

Brook Andrew Woolley, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2005 · median 2011 among the 4,560 with a school on file
  • Record last updated2021 · 59% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

95 emergency medicine physician records list a practice address in Walnut Creek

They are 95 of the 6,170 NPPES records with a practice address in Walnut Creek, and 7,751 emergency medicine physician records in California.

All 7,751 in California → Every provider in Walnut Creek → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Peter Barnett, M.D.Walnut Creek, CA 945961699882589
  2. Brian Baskin, MDWalnut Creek, CA 945961770554693
  3. Peter Benson, M.D.Walnut Creek, CA 945961487680393
  4. Scott Chamberlain, M.D.Walnut Creek, CA 945961356395453
  5. Charles Hansen, MDWalnut Creek, CA 945961891873956
  6. Christopher Jaksa, MDWalnut Creek, CA 945961619055779
  7. Conrad Lai, M.DWalnut Creek, CA 945961942248141
  8. Hannon Patel, MDWalnut Creek, CA 945961336227495

Common questions

What is Brook Andrew Woolley, M.D.'s NPI number?

Brook Andrew Woolley, M.D.'s National Provider Identifier (NPI) is 1003039538, issued on Apr 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Brook Andrew Woolley, M.D. located?

The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-5100. Providers update this record themselves, so call before visiting.

How can I verify Brook Andrew Woolley, M.D.'s license?

NPPES lists California license number A102474, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brook Andrew Woolley, M.D. prescribe under Medicare Part D?

In 2024, Brook Andrew Woolley, M.D. had 202 Medicare Part D claims for 148 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.