NPPES file of Aug 9, 2026

Lindsay Borden Walker, MD

Emergency Medicine Physician · Berkeley, CA

Lindsay Borden Walker, MD is an emergency medicine physician with a practice address in Berkeley, California, and NPI 1679063499, issued on May 17, 2018. Check the license (California A174467, 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
1679063499
Name
Lindsay Borden Walker
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A174467 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Milvia St, Berkeley, CA 94704
Phone
(510) 204-5541
Enumerated
May 17, 2018
Record last updated
Oct 30, 2024
Medicare enrollment
Enrolled (PECOS I20210907002807); accepts Medicare assignment
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 2500 Milvia St

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

  1. Altaf Ansari, MDEmergency Medicine Physician1700938297
  2. Debbie Barish, DNP, MS, WHNP-BCWomen's Health Nurse Practitioner1871680868
  3. Jennifer Barlow, DPMPodiatrist1588744536
  4. Felix Berberich, MDPediatrics Physician1205869286
  5. Sara Bosomworth, DOInternal Medicine Physician1548849078
  6. Rachel Budker, MDObstetrics & Gynecology Physician1154908150

Verify Lindsay Borden Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A174467
    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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16% fewer Medicare Part D claims than the average emergency medicine physician in 2024

189 Medicare Part D claims for 131 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 13 claims were for opioids.

  1. Lindsay Walker189
  2. Specialty average226

Most prescribed

  1. Cefpodoxime Proxetil27 claims
  2. Ibuprofen12 claims
  3. Sulfamethoxazole-Trimethoprim11 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. Sutter Bay Medical FoundationOrinda, CA

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

Lindsay Borden Walker among 7,751 emergency medicine physician records in California

Lindsay Borden Walker, MD 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 2018, is newer than 81% of them.

  • NPI issued2018 · 81% of these records are older, 15% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2018 · median 2011 among the 4,560 with a school on file
  • Record last updated2024 · 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).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Nanaefua Afoh-Manin, MDBerkeley, CA 947041760646897
  2. Altaf Ansari, MDBerkeley, CA 947041700938297
  3. Helen Jackson, M.D.Berkeley, CA 947041598815938
  4. Steve Pham, M.D.Berkeley, CA 947041285950253
  5. Karen Carothers, MDBerkeley, CA 947051619935830
  6. Jeff Chen, DRBerkeley, CA 947051912973074
  7. Brian Hinrichsen, PABerkeley, CA 947051376534792
  8. Michael Kessler, MDBerkeley, CA 947051316995830

Common questions

What is Lindsay Borden Walker, MD's NPI number?

Lindsay Borden Walker, MD's National Provider Identifier (NPI) is 1679063499, issued on May 17, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Lindsay Borden Walker, MD located?

The NPPES record lists a practice address at 2500 Milvia St, Berkeley, CA, 94704. Phone: (510) 204-5541. Providers update this record themselves, so call before visiting.

How can I verify Lindsay Borden Walker, MD's license?

NPPES lists California license number A174467, 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 Lindsay Borden Walker, MD prescribe under Medicare Part D?

In 2024, Lindsay Borden Walker, MD had 189 Medicare Part D claims for 131 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.