NPPES file of Aug 9, 2026

Mary Catherine Mayo, M.D.

Neurology Physician · Santa Monica, CA

Mary Catherine Mayo, M.D. is a neurology physician with a practice address in Santa Monica, California, and NPI 1922326735, issued on May 5, 2010. Check the license (California 120511, 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
1922326735
Name
Mary Catherine Mayo
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
120511 CA
Self-reported in NPPES; status is on the state search
Practice location
1801 Wilshire Blvd Ste 100, Santa Monica, CA 90403
Phone
(310) 319-5098
Enumerated
May 5, 2010
Record last updated
Jan 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(310) 319-4552
Medicare enrollment
Enrolled (PECOS I20141025000007); accepts Medicare assignment
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 1801 Wilshire Blvd Ste 100

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

  1. Alicia Brady, MDNeurology Physician1316566532
  2. Joss Cohen, M.D.Neurology Physician1235689332
  3. Nigar Dargah-Zada, M. D.Neurology Physician1528475969
  4. Shamsha Doran, MDNeurology Physician1508065947
  5. Michael Ho, M.D.Neurology Physician1013171834
  6. Doojin Kim, MDNeurology Physician1487679858

Verify Mary Catherine Mayo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 120511
    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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46% more Medicare Part D claims than the average neurology physician in 2024

1,994 Medicare Part D claims for 372 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Mary Catherine Mayo1,994
  2. Specialty average1,370

Most prescribed

  1. Carbidopa-Levodopa295 claims
  2. Donepezil Hcl152 claims
  3. Memantine Hcl102 claims
  4. Gabapentin88 claims
  5. Quetiapine Fumarate88 claims
  6. Sumatriptan Succinate79 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): 90.8 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. Qualityout of 100 · 30% of the final score85.8
  2. Costout of 100 · 30%80.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $829.64

35 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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. Mary Catherine Mayo$829.64
  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. Regents OF The University OF California Los AngelesSanta Monica, CA

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

Mary Catherine Mayo among 2,339 neurology physician records in California

Mary Catherine Mayo, M.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 2010, is newer than 61% of them.

  • NPI issued2010 · 61% of these records are older, 36% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2010 · median 2006 among the 1,628 with a school on file
  • Record last updated2020 · 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. Margaret Adler, MDSanta Monica, CA 904031457518276
  2. Marisa Chang, MDSanta Monica, CA 904031730348269
  3. Dorothy Dada, MD, PHDSanta Monica, CA 904031528479383
  4. Shamsha Doran, MDSanta Monica, CA 904031508065947
  5. Daniel Franc, MDSanta Monica, CA 904031548589799
  6. Michael Ho, M.D.Santa Monica, CA 904031013171834
  7. Santosh Kesari, MD PHDSanta Monica, CA 904031891785960
  8. Doojin Kim, MDSanta Monica, CA 904031487679858

Common questions

What is Mary Catherine Mayo, M.D.'s NPI number?

Mary Catherine Mayo, M.D.'s National Provider Identifier (NPI) is 1922326735, issued on May 5, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Mary Catherine Mayo, M.D. located?

The NPPES record lists a practice address at 1801 Wilshire Blvd Ste 100, Santa Monica, CA, 90403. Phone: (310) 319-5098. Providers update this record themselves, so call before visiting.

How can I verify Mary Catherine Mayo, M.D.'s license?

NPPES lists California license number 120511, 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 Mary Catherine Mayo, M.D. prescribe under Medicare Part D?

In 2024, Mary Catherine Mayo, M.D. had 1,994 Medicare Part D claims for 372 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Mary Catherine Mayo, M.D.'s MIPS final score?

The 2023 MIPS final score is 90.8 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.