NPPES file of Aug 9, 2026

Mark Andrew Liker, M.D.

Neurological Surgery Physician · Valencia, CA

Mark Andrew Liker, M.D. is a neurological surgery physician with a practice address in Valencia, California, and NPI 1407806292, issued on May 11, 2006. Check the license (California A62368, 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
1407806292
Name
Mark Andrew Liker
Credential
M.D.
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
A62368 CA
Self-reported in NPPES; status is on the state search
Practice location
23929 Mcbean Pkwy Ste 215, Valencia, CA 91355
Phone
(661) 799-2542
Enumerated
May 11, 2006
Record last updated
Apr 29, 2026
Medicare enrollment
Enrolled (PECOS I20050912001287); 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 23929 Mcbean Pkwy Ste 215

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

  1. Christopher Aho, M.D.Neurological Surgery Physician1295775807
  2. Amanda BisharatPhysician Assistant1427522713
  3. Raj Desai, MDInterventional Pain Medicine Physician1508258559
  4. Travis Ladner, MDNeurological Surgery Physician1013370378
  5. Khiara Scolari, PAPhysician Assistant1962979690

Verify Mark Andrew Liker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A62368
    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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84% fewer Medicare Part D claims than the average neurological surgery physician in 2024

28 Medicare Part D claims for 19 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mark Liker28
  2. Specialty average172

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.

Industry payments in 2024: $2,255.24

35 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Liker$2,255
  2. Specialty average$14,926

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

Bills Medicare through 2 group practices

  1. Neurosurgical Associates OF Los Angeles, Inc.Valencia, CA
  2. Usc Care Medical Group IncLos Angeles, CA

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

Mark Andrew Liker among 929 neurological surgery physician records in California

Mark Andrew Liker, M.D. is one of 929 neurological surgery physician records with a practice address in California. 77% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1995 · median 2005 among the 612 with a school on file
  • Record last updated2026 · 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 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in California

There are 929 neurological surgery physician records in California.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Christopher Aho, M.D.Valencia, CA 913551295775807
  2. Travis Ladner, MDValencia, CA 913551013370378
  3. Andrew Vivas, M.D.Valencia, CA 913551790046720
  4. Parham Yashar, M.D.Valencia, CA 913551215100805
  5. Arnau Benet Cabero, MDThousand Oaks, CA 913601891225876
  6. Leslie Cahan, MDThousand Oaks, CA 913601063583979
  7. Robert Coffey, M.D.Thousand Oaks, CA 913601154714525
  8. Michael Dorsi, MDThousand Oaks, CA 913601942355854

Common questions

What is Mark Andrew Liker, M.D.'s NPI number?

Mark Andrew Liker, M.D.'s National Provider Identifier (NPI) is 1407806292, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Andrew Liker, M.D. located?

The NPPES record lists a practice address at 23929 Mcbean Pkwy Ste 215, Valencia, CA, 91355. Phone: (661) 799-2542. Providers update this record themselves, so call before visiting.

How can I verify Mark Andrew Liker, M.D.'s license?

NPPES lists California license number A62368, 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 Mark Andrew Liker, M.D. prescribe under Medicare Part D?

In 2024, Mark Andrew Liker, M.D. had 28 Medicare Part D claims for 19 beneficiaries; the average among neurological surgery physician prescribers was 172. 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.