NPPES file of Aug 9, 2026

Melissa Mattos De Unamuno, M.O.T.L.

Occupational Therapist · Fremont, CA

Melissa Mattos De Unamuno, M.O.T.L. is an occupational therapist with a practice address in Fremont, California, and NPI 1245256056, issued on Jul 14, 2006. Check the license (California OT6637, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245256056
Name
Melissa Mattos De Unamuno
Credential
M.O.T.L.
Primary taxonomy
Occupational Therapist 225X00000X
License number
OT6637 CA
Self-reported in NPPES; status is on the state search
Practice location
3575 Beacon Ave, Fremont, CA 94538
Phone
(510) 794-9672
Enumerated
Jul 14, 2006
Record last updated
Feb 4, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(510) 792-8138
Medicaid ID
CT0066370 CA
Medicare enrollment
Enrolled (PECOS I20060920000458); accepts Medicare assignment
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 3575 Beacon Ave

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

  1. Mark Neves, OTRLOccupational Therapist1295869923
  2. Naimishkumar Sheth, MSPTPhysical Therapist1982870960

Verify Melissa Mattos De Unamuno in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license OT6637
    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
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.

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Bills Medicare through one group practice

  1. Washington Outpatient Rehabilitation Center A Joint VentureFremont, CA

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

Melissa Mattos De Unamuno among 9,244 occupational therapist records in California

Melissa Mattos De Unamuno, M.O.T.L. is one of 9,244 occupational therapist records with a practice address in California. 9% 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 under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 95% newer
  • In a Medicare fileYes · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2002 · median 2018 among the 910 with a school on file
  • Record last updated2009 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 occupational therapist records list a practice address in Fremont

They are 74 of the 4,749 NPPES records with a practice address in Fremont, and 9,244 occupational therapist records in California.

The 8 occupational therapist records with the nearest ZIP codes

  1. Shubha ChandrashekharFremont, CA 945381558759050
  2. Gueyfang Jih, PHD OTRFremont, CA 945381073728515
  3. Allison Jimenez, OTRFremont, CA 945381881803435
  4. Kay Kitauchi, BS, OT/LFremont, CA 945381760638340
  5. Mark Neves, OTRLFremont, CA 945381295869923
  6. Brittney NicholsFremont, CA 945381841591203
  7. Justine Park, OTR/LFremont, CA 945381033485594
  8. Angelica PhamFremont, CA 945381407233083

Common questions

What is Melissa Mattos De Unamuno, M.O.T.L.'s NPI number?

Melissa Mattos De Unamuno, M.O.T.L.'s National Provider Identifier (NPI) is 1245256056, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Mattos De Unamuno, M.O.T.L. located?

The NPPES record lists a practice address at 3575 Beacon Ave, Fremont, CA, 94538. Phone: (510) 794-9672. Providers update this record themselves, so call before visiting.

How can I verify Melissa Mattos De Unamuno, M.O.T.L.'s license?

NPPES lists California license number OT6637, as entered by the provider. 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. 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.