Registry data as of Aug 27, 2026

Holly Mersy

Physical Therapy Assistant · San Marcos, CA

Holly Mersy is a physical therapy assistant with a practice address in San Marcos, California, and NPI 1164346128, issued on Aug 4, 2026. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1164346128
Name
Holly Mersy
Primary taxonomy
Physical Therapy Assistant 225200000X
Practice location
1740 LA Costa Meadows Dr Ste 250, San Marcos, CA 92078
Phone
(760) 516-8900
Enumerated
Aug 4, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Holly Mersy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Physical Therapy Assistant providers in California

There are 3,592 physical therapy assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,592 in California → Every provider in San Marcos →

Other physical therapy assistant records in California

  1. Teresa Aagaard, P.T.A.Camarillo, CA1386924710
  2. Lindsay AaronOrange, CA1104214303
  3. Marita Abad, PTALos Angeles, CA1407361017
  4. Diego Abbes, PTATemecula, CA1114315496
  5. Grant Abbuhl, PTAConcord, CA1063933174
  6. Louis Abe, PTAYuba City, CA1437311545
  7. Kelsey Abear, PTASanta Rosa, CA1629950852
  8. Justin Anthony AbellanosaBuena Park, CA1073005526
  9. John Warren AbendanoMontebello, CA1154719607
  10. Katharina Abernethy, PA, PTAWindsor, CA1518039536

Common questions

What is Holly Mersy's NPI number?

Holly Mersy's National Provider Identifier (NPI) is 1164346128, issued on Aug 4, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Holly Mersy located?

The NPPES record lists a practice address at 1740 LA Costa Meadows Dr Ste 250, San Marcos, CA, 92078. Phone: (760) 516-8900. Providers update this record themselves, so call before visiting.

How can I verify Holly Mersy's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.