NPPES file of Aug 9, 2026

Martha Leticia Hammons, MSW

Social Worker · Fairfield, CA

Martha Leticia Hammons, MSW is a social worker with a practice address in Fairfield, California, and NPI 1326510157, issued on Dec 18, 2018. Check the license (California 88084, as entered in NPPES) 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
1326510157
Name
Martha Leticia Hammons
Credential
MSW
Primary taxonomy
Social Worker 104100000X
License numbers
88084 CA
ASW86566 CA
Self-reported in NPPES; status is on the state search
Practice location
275 Beck Ave # MS 5-120, Fairfield, CA 94533
Phone
(707) 784-8114
Enumerated
Dec 18, 2018
Record last updated
May 23, 2023
Fax
(707) 428-6542
Medicare enrollment
Enrolled (PECOS I20251104003745); may accept 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 275 Beck Ave # MS 5-120

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

  1. Patricia Moreno Guadamuz, LMFTMarriage & Family Therapist1801463419

Verify Martha Leticia Hammons 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 88084
    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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Martha Leticia Hammons among 10,332 social worker records in California

Martha Leticia Hammons, MSW is one of 10,332 social worker records with a practice address in California. 2% 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 2018, is newer than 47% of them.

  • NPI issued2018 · 47% of these records are older, 48% newer
  • In a Medicare fileNo · 2% of these records are
  • In the CMS Doctors and Clinicians fileYes · 3% of these records are
  • Graduated2012 · median 2015 among the 299 with a school on file
  • Record last updated2023 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

106 social worker records list a practice address in Fairfield

They are 106 of the 3,595 NPPES records with a practice address in Fairfield, and 10,332 social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 social worker records with the nearest ZIP codes

  1. Ana Hernandez-Soto, ASWFairfield, CA 945331114088432
  2. Caleb Hervey, ASWFairfield, CA 945331992831127
  3. Michael Jogopulos, L.C.S.W.Fairfield, CA 945331023225273
  4. Victoria LayneFairfield, CA 945331700904190
  5. Anushua Mall, MASTERFairfield, CA 945331740338367
  6. Mayra Montano, LCSWFairfield, CA 945331710294087
  7. Amanda MorrisFairfield, CA 945331023259843
  8. Norma Onate, LCSWFairfield, CA 945331366694481

Common questions

What is Martha Leticia Hammons, MSW's NPI number?

Martha Leticia Hammons, MSW's National Provider Identifier (NPI) is 1326510157, issued on Dec 18, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Martha Leticia Hammons, MSW located?

The NPPES record lists a practice address at 275 Beck Ave # MS 5-120, Fairfield, CA, 94533. Phone: (707) 784-8114. Providers update this record themselves, so call before visiting.

How can I verify Martha Leticia Hammons, MSW's license?

NPPES lists California license number 88084, 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. 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.