NPPES file of Aug 9, 2026

Marcella Ortiz

Peer Specialist · San Mateo, CA

Marcella Ortiz is a peer specialist with a practice address in San Mateo, California, and NPI 1922831577, issued on Aug 20, 2024. 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922831577
Name
Marcella Ortiz
Primary taxonomy
Peer Specialist 175T00000X
Practice location
1700 S Amphlett Blvd Ste 120, San Mateo, CA 94402
Phone
(650) 683-0882
Enumerated
Aug 20, 2024
Record last updated
Aug 15, 2025
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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8 nearest peer specialist records → All 4,528 in California → Look up another NPI →

Also registered at 1700 S Amphlett Blvd Ste 120

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

  1. Zoi Calomiris, PEER SUPPORTPeer Specialist1740021310
  2. Sebastien CastelainAdult Psychiatric/Mental Health Registered Nurse1407207038
  3. Daniel ChoeCommunity Health Worker1558159475
  4. Sarah Choe, LMFTMarriage & Family Therapist1104309780
  5. Joshua Craig DayaRegistered Nurse1194681627
  6. Randy Dillard, ACSW, MSWSocial Worker1447934906

Verify Marcella Ortiz 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

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Marcella Ortiz among 4,528 peer specialist records in California

Marcella Ortiz is one of 4,528 peer specialist records with a practice address in California. 0% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2024, is newer than 59% of them.

  • NPI issued2024 · 59% of these records are older, 26% newer
  • In a Medicare fileNo · 0% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2025 · 15% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Peer Specialist providers in California

There are 4,528 peer specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,528 in California → Every provider in San Mateo → Peer Specialist nationwide →

The 8 peer specialist records with the nearest ZIP codes

  1. Zoi Calomiris, PEER SUPPORTSan Mateo, CA 944021740021310
  2. Sayda CeronSan Mateo, CA 944021679354096
  3. Samantha Harper-AlvarezSan Mateo, CA 944021699667824
  4. Cheng HsuSan Mateo, CA 944021992248884
  5. Keven LeSan Mateo, CA 944021003372616
  6. Patricia NemeSan Mateo, CA 944021780561332
  7. Margarita ReyesSan Mateo, CA 944021578313714
  8. Ngwe Hnin ThetSan Mateo, CA 944021861377426

Common questions

What is Marcella Ortiz's NPI number?

Marcella Ortiz's National Provider Identifier (NPI) is 1922831577, issued on Aug 20, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Marcella Ortiz located?

The NPPES record lists a practice address at 1700 S Amphlett Blvd Ste 120, San Mateo, CA, 94402. Phone: (650) 683-0882. Providers update this record themselves, so call before visiting.

How can I verify Marcella Ortiz'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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.