Charlotte Miriam Koestner, LCSW
Social Worker · Phoenix, AZ
Charlotte Miriam Koestner, LCSW is a social worker with a practice address in Phoenix, Arizona, and NPI 1609436807, issued on Jun 19, 2019. Check the license (Arizona LCSW-17878, as entered in NPPES) with the Arizona board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Charlotte Miriam Koestner
- Credential
- LCSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- LCSW-17878 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 125 S 1St Ave, Phoenix, AZ 85003
- Phone
- (602) 372-2315
- Enumerated
- Jun 19, 2019
- Record last updated
- Jun 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (602) 372-2300
- Entity
- Type 1 · individual
Also registered at 125 S 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charlotte Miriam Koestner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license LCSW-17878Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
535 social worker records list a practice address in Phoenix
They are 535 of the 31,399 NPPES records with a practice address in Phoenix, and 1,553 social worker records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 535 in Phoenix → All 1,553 in Arizona → Every provider in Phoenix →
Other social worker records in Arizona
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- Christie Abrams, MSWPhoenix, AZ1164554580
- Nicole Abrams, LMSWTucson, AZ1174917025
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- Elizabeth Acree, LMSWTucson, AZ1215651336
Common questions
What is Charlotte Miriam Koestner, LCSW's NPI number?
Charlotte Miriam Koestner, LCSW's National Provider Identifier (NPI) is 1609436807, issued on Jun 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Charlotte Miriam Koestner, LCSW located?
The NPPES record lists a practice address at 125 S 1St Ave, Phoenix, AZ, 85003. Phone: (602) 372-2315. Providers update this record themselves, so call before visiting.
How can I verify Charlotte Miriam Koestner, LCSW's license?
NPPES lists Arizona license number LCSW-17878, 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. 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.