NPPES file of Aug 9, 2026

Mellissa Kaye Williams

Clinical Social Worker · Crescent City, CA

Mellissa Kaye Williams is a clinical social worker with a practice address in Crescent City, California, and NPI 1447700380, issued on Oct 4, 2016. Check the license (California LCSW122811, 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
1447700380
Name
Mellissa Kaye Williams
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCSW122811 CA
Self-reported in NPPES; status is on the state search
Practice location
1403 Inyo St Apt 151, Crescent City, CA 95531
Phone
(707) 954-7626
Enumerated
Oct 4, 2016
Record last updated
May 30, 2024
Medicare enrollment
Enrolled (PECOS I20240730000853); 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.
Download card Updates feed

Verify Mellissa Kaye Williams 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 LCSW122811
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Silver Lake Psychology IncLos Angeles, CA

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

Mellissa Kaye Williams among 36,261 clinical social worker records in California

Mellissa Kaye Williams is one of 36,261 clinical social worker records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 53% of them.

  • NPI issued2016 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2017 · median 2012 among the 4,008 with a school on file
  • Record last updated2024 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 clinical social worker records list a practice address in Crescent City

They are 31 of the 458 NPPES records with a practice address in Crescent City, and 36,261 clinical social worker records in California.

The 8 clinical social worker records with the nearest ZIP codes

  1. Jill Babbitt, LCSWCrescent City, CA 955311770681488
  2. Vincent Cappello, LCSWCrescent City, CA 955311235332347
  3. Brenda Davis, LCSWCrescent City, CA 955311700939949
  4. Michael Gingerich, LCSW, PH.D.Crescent City, CA 955311811986797
  5. Alfred Howe, BSWCrescent City, CA 955311174781785
  6. Deborah Hunt, LCSWCrescent City, CA 955311730206087
  7. Carol KaysCrescent City, CA 955311003062308
  8. Connee McCasland, LCSWCrescent City, CA 955311750692463

Common questions

What is Mellissa Kaye Williams's NPI number?

Mellissa Kaye Williams's National Provider Identifier (NPI) is 1447700380, issued on Oct 4, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Mellissa Kaye Williams located?

The NPPES record lists a practice address at 1403 Inyo St Apt 151, Crescent City, CA, 95531. Phone: (707) 954-7626. Providers update this record themselves, so call before visiting.

How can I verify Mellissa Kaye Williams's license?

NPPES lists California license number LCSW122811, 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.