NPPES file of Aug 9, 2026

Channing Gredvig, LCSW

Clinical Social Worker · San Diego, CA

Channing Gredvig, LCSW is a clinical social worker with a practice address in San Diego, California, and NPI 1003113622, issued on Feb 16, 2011. Check the license (California 64651, 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
1003113622
Name
Channing Gredvig
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
64651 CA
Self-reported in NPPES; status is on the state search
Practice location
3420 Kenyon St, San Diego, CA 92110
Phone
(619) 221-6550
Enumerated
Feb 16, 2011
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(619) 221-6556
Medicare enrollment
Enrolled (PECOS I20150825005695); 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 3420 Kenyon St

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

  1. Robert Awalt, PSY.D. AND LCSWPsychologist1790980829
  2. Gene Batalia, MSW, LCSWClinical Social Worker1336345826
  3. Janine Becker, L.C.S.W.Clinical Social Worker1952507113
  4. Khadijah Bhutto Ramirez, M.A., LMFTMarriage & Family Therapist1407196413
  5. Mayra BonillaMarriage & Family Therapist1376071381
  6. Janice Brookes, LCSWClinical Social Worker1538364161

Verify Channing Gredvig 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 64651
    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. Southern California Permanente Medical GroupSan Diego, CA

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

Channing Gredvig among 36,261 clinical social worker records in California

Channing Gredvig, LCSW 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 2011, is newer than 34% of them.

  • NPI issued2011 · 34% of these records are older, 62% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2003 · median 2012 among the 4,008 with a school on file
  • Record last updated2021 · 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).

2,036 clinical social worker records list a practice address in San Diego

They are 2,036 of the 52,937 NPPES records with a practice address in San Diego, and 36,261 clinical social worker records in California.

The 8 clinical social worker records with the nearest ZIP codes

  1. Richard Arellano, LCSWSan Diego, CA 921101396814505
  2. Cara Bechefsky, LCSWSan Diego, CA 921101205929346
  3. O. Cole, L.C.S.W.San Diego, CA 921101205840485
  4. Lysette Delcastillo, LCSWSan Diego, CA 921101558438697
  5. Michael Hammer, MSWSan Diego, CA 921101861491292
  6. Michele Koonin, LCSWSan Diego, CA 921101982635611
  7. Robert Ledermann, PH.D.San Diego, CA 921101962418111
  8. Janel Medina, LCSWSan Diego, CA 921101699840579

Common questions

What is Channing Gredvig, LCSW's NPI number?

Channing Gredvig, LCSW's National Provider Identifier (NPI) is 1003113622, issued on Feb 16, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Channing Gredvig, LCSW located?

The NPPES record lists a practice address at 3420 Kenyon St, San Diego, CA, 92110. Phone: (619) 221-6550. Providers update this record themselves, so call before visiting.

How can I verify Channing Gredvig, LCSW's license?

NPPES lists California license number 64651, 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.