NPPES file of Aug 9, 2026

Jillian Deerr, LCSW

Clinical Social Worker · Phoenix, AZ

Jillian Deerr, LCSW is a clinical social worker with a practice address in Phoenix, Arizona, and NPI 1447913538, issued on Oct 15, 2021. Check the license (Arizona 20902, as entered in NPPES) with the Arizona 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
1447913538
Name
Jillian Deerr
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
20902 AZ
107558-01 NY
LW61430623 WA
Self-reported in NPPES; status is on the state search
Practice location
8222 S 48TH St Ste 200, Phoenix, AZ 85044
Phone
(623) 300-5477
Enumerated
Oct 15, 2021
Record last updated
Mar 15, 2026
Medicare enrollment
Enrolled (PECOS I20221110003039); 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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8 nearest clinical social worker records → All 3,200 in Arizona → Look up another NPI →

Also registered at 8222 S 48TH St Ste 200

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

  1. Jade AveryProfessional Counselor1295493534
  2. Diana Beltran Washington, DBH, LPCProfessional Counselor1902536675
  3. James Boatman, LMSWSocial Worker1346920063
  4. Nancy Chaparro, LCSW, BC-TMHClinical Social Worker1881157691
  5. Reynaldo Cruz, LPC, BHPMental Health Counselor1922684026
  6. Danielle Eng, LPCCounselor1881355576

Verify Jillian Deerr in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 20902    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 Arizona 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. Adelante Healthcare, IncPhoenix, AZ

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

Jillian Deerr among 3,200 clinical social worker records in Arizona

Jillian Deerr, LCSW is one of 3,200 clinical social worker records with a practice address in Arizona. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 67% of them.

  • NPI issued2021 · 67% of these records are older, 28% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated2019 · median 2011 among the 648 with a school on file
  • Record last updated2026 · 47% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

777 clinical social worker records list a practice address in Phoenix

They are 777 of the 31,399 NPPES records with a practice address in Phoenix, and 3,200 clinical social worker records in Arizona.

All 3,200 in Arizona → Every provider in Phoenix → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Nancy Chaparro, LCSW, BC-TMHPhoenix, AZ 850441881157691
  2. Cynthia Djengue, LCSWPhoenix, AZ 850441639744626
  3. Amy Epp, LCSWPhoenix, AZ 850441295941821
  4. Gail Ericson, LCSWPhoenix, AZ 850441407009616
  5. Melissa Jandt, LCSWPhoenix, AZ 850441164796876
  6. Natalie KnightPhoenix, AZ 850441922620921
  7. Joan Leshner, MSW LCSWPhoenix, AZ 850441730283763
  8. Catherine MarksPhoenix, AZ 850441609962331

Common questions

What is Jillian Deerr, LCSW's NPI number?

Jillian Deerr, LCSW's National Provider Identifier (NPI) is 1447913538, issued on Oct 15, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Jillian Deerr, LCSW located?

The NPPES record lists a practice address at 8222 S 48TH St Ste 200, Phoenix, AZ, 85044. Phone: (623) 300-5477. Providers update this record themselves, so call before visiting.

How can I verify Jillian Deerr, LCSW's license?

NPPES lists Arizona license number 20902, as entered by the provider. Search the Arizona 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.

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.