NPPES file of Aug 9, 2026

Liza Harrison Ashbrook, M.D.

Sleep Medicine (Psychiatry & Neurology) Physician · San Francisco, CA

Liza Harrison Ashbrook, M.D. is a sleep medicine (psychiatry & neurology) physician with a practice address in San Francisco, California, and NPI 1912297433, issued on Apr 18, 2011. Check the license (California A124588, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912297433
Name
Liza Harrison Ashbrook
Credential
M.D.
Primary taxonomy
Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
License number
A124588 CA
Self-reported in NPPES; status is on the state search
Practice location
1651 4TH St Ste 112, San Francisco, CA 94158
Phone
(415) 353-2273
Enumerated
Apr 18, 2011
Record last updated
May 28, 2026
Medicare enrollment
Enrolled (PECOS I20160811001241); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2011
Telehealth
Offers telehealth (CMS)
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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Verify Liza Harrison Ashbrook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A124588
    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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2% fewer Medicare Part D claims than the average sleep medicine (psychiatry & neurology) physician in 2024

643 Medicare Part D claims for 78 beneficiaries, against an average of 655 among the 377 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 36 claims were for opioids.

  1. Liza Ashbrook643
  2. Specialty average655

Most prescribed

  1. Pregabalin91 claims
  2. Dayvigo48 claims
  3. Trazodone Hcl48 claims
  4. Modafinil41 claims
  5. Belsomra30 claims
  6. Zaleplon28 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): 74.5 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.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. University OF California San FranciscoSan Francisco, CA

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

Sleep Medicine (Psychiatry & Neurology) Physician providers in California

There are 53 sleep medicine (psychiatry & neurology) physician records in California.

Other sleep medicine (psychiatry & neurology) physician records in California

  1. Vivien Abad, M.D.Palo Alto, CA1861588030
  2. Gregory Ackroyd, M.D.Santa Rosa, CA1538192984
  3. Angela Anagnos, M.D.San Jose, CA1174542047
  4. Nevin Arora, MDVista, CA1518191949
  5. Matt Bianchi, MD PHDPalo Alto, CA1881715084
  6. Jed Black, M.D.Stanford, CA1750423828
  7. Stephen Brooks, M.D.Palo Alto, CA1922147602
  8. Mark Buchfuhrer, MDDowney, CA1639130693
  9. Allison Chan, DOSunnyvale, CA1841386000
  10. Deepti Chandran, MDCapitola, CA1093839532

Common questions

What is Liza Harrison Ashbrook, M.D.'s NPI number?

Liza Harrison Ashbrook, M.D.'s National Provider Identifier (NPI) is 1912297433, issued on Apr 18, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Liza Harrison Ashbrook, M.D. located?

The NPPES record lists a practice address at 1651 4TH St Ste 112, San Francisco, CA, 94158. Phone: (415) 353-2273. Providers update this record themselves, so call before visiting.

How can I verify Liza Harrison Ashbrook, M.D.'s license?

NPPES lists California license number A124588, 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 Liza Harrison Ashbrook, M.D. prescribe under Medicare Part D?

In 2024, Liza Harrison Ashbrook, M.D. had 643 Medicare Part D claims for 78 beneficiaries; the average among sleep medicine (psychiatry & neurology) physician prescribers was 655. Part D covers Medicare prescriptions only.

What is Liza Harrison Ashbrook, M.D.'s MIPS final score?

The 2023 MIPS final score is 74.5 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.