NPPES file of Aug 9, 2026

Aimee Wen Yi Kao, M.D., PH.D.

Neurology Physician · San Francisco, CA

Aimee Wen Yi Kao, M.D., PH.D. is a neurology physician with a practice address in San Francisco, California, and NPI 1447324975, issued on Nov 17, 2006. Check the license (California A79207, 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
1447324975
Name
Aimee Wen Yi Kao
Credential
M.D., PH.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
A79207 CA
Self-reported in NPPES; status is on the state search
Practice location
400 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-6880
Enumerated
Nov 17, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(415) 476-4800
Medicare enrollment
Enrolled (PECOS I20040614001064); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 2000
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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Also registered at 400 Parnassus Ave

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

  1. Jessica Abele, DPTPhysical Therapist1851648133
  2. Ian Adatia, MB CHBPediatric Cardiology Physician1427085299
  3. Daniel Adelman, M.D.Internal Medicine Physician1922041821
  4. Joshua Adler, MDInternal Medicine Physician1194781351
  5. Justin Ahn, M.D.Urology Physician1063755148
  6. Weiyun Ai, MDMedical Oncology Physician1649346842

Verify Aimee Wen Yi Kao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A79207
    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

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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88% fewer Medicare Part D claims than the average neurology physician in 2024

158 Medicare Part D claims for 28 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Aimee Kao158
  2. Specialty average1,370

Most prescribed

  1. Donepezil Hcl44 claims
  2. Trazodone Hcl29 claims
  3. Mirtazapine21 claims
  4. Citalopram Hbr14 claims
  5. Levetiracetam11 claims
  6. Rivastigmine11 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).

Industry payments in 2024: $1,875.00

1 payment: consulting fee; the largest payer was Eli Lilly and Company. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Aimee Kao$1,875.00
  2. Specialty average$8,318.07

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

Bills Medicare through one group practice

  1. 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).

Aimee Wen Yi Kao among 2,339 neurology physician records in California

Aimee Wen Yi Kao, M.D., PH.D. is one of 2,339 neurology 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2000 · median 2006 among the 1,628 with a school on file
  • Record last updated2007 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. Adam Boxer, M.D.San Francisco, CA 941431841231800
  2. Dorothee Chabas Chanezon, M.D.San Francisco, CA 941431902832645
  3. Anthony Chen, MDSan Francisco, CA 941431609834472
  4. Jacob Elkins, M.D.San Francisco, CA 941431336180298
  5. Adam Gazzaley, MD PH DSan Francisco, CA 941431932142205
  6. John Hixson, MDSan Francisco, CA 941431336130475
  7. Catherine Hoerth, M.D.San Francisco, CA 941431063449866
  8. Viktoriya Irodenko, M.D.San Francisco, CA 941431023044997

Common questions

What is Aimee Wen Yi Kao, M.D., PH.D.'s NPI number?

Aimee Wen Yi Kao, M.D., PH.D.'s National Provider Identifier (NPI) is 1447324975, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Aimee Wen Yi Kao, M.D., PH.D. located?

The NPPES record lists a practice address at 400 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-6880. Providers update this record themselves, so call before visiting.

How can I verify Aimee Wen Yi Kao, M.D., PH.D.'s license?

NPPES lists California license number A79207, 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 Aimee Wen Yi Kao, M.D., PH.D. prescribe under Medicare Part D?

In 2024, Aimee Wen Yi Kao, M.D., PH.D. had 158 Medicare Part D claims for 28 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Aimee Wen Yi Kao, M.D., PH.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.