NPPES file of Aug 9, 2026

Phyllis Marie Siebern, LPC

Professional Counselor · Tucson, AZ

Phyllis Marie Siebern, LPC is a professional counselor with a practice address in Tucson, Arizona, and NPI 1326471871, issued on Aug 19, 2013. Check the license (Arizona LPC14268, 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
1326471871
Name
Phyllis Marie Siebern
Credential
LPC
Primary taxonomy
Professional Counselor 101YP2500X
License number
LPC14268 AZ
Self-reported in NPPES; status is on the state search
Practice location
2435 N Castro Ave, Tucson, AZ 85705
Phone
(520) 622-8030
Enumerated
Aug 19, 2013
Record last updated
Aug 19, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(520) 622-8012
Medicare enrollment
Enrolled (PECOS I20240110005166); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 professional counselor records → All 2,960 in Arizona → Look up another NPI →

Also registered at 2435 N Castro Ave

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

  1. Kathleen Andrea, FNPFamily Nurse Practitioner1295701043
  2. Christine Ash, LCSWClinical Social Worker1982928974
  3. Larae Barnes, FNPFamily Nurse Practitioner1871834010
  4. William Gordon, RNPsychiatric/Mental Health Nurse Practitioner1275780009
  5. Judy Gorman-ProwProfessional Counselor1609796879
  6. Tanya HillmanProfessional Counselor1154651818

Verify Phyllis Marie Siebern 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 LPC14268    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. Brightside Medical PAPhoenix, AZ

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

Phyllis Marie Siebern among 2,960 professional counselor records in Arizona

Phyllis Marie Siebern, LPC is one of 2,960 professional counselor 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 2013, is newer than 34% of them.

  • NPI issued2013 · 34% of these records are older, 63% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2001 · median 2015 among the 497 with a school on file
  • Record last updated2013 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YP2500X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

484 professional counselor records list a practice address in Tucson

They are 484 of the 18,788 NPPES records with a practice address in Tucson, and 2,960 professional counselor records in Arizona.

All 2,960 in Arizona → Every provider in Tucson → Professional Counselor nationwide →

The 8 professional counselor records with the nearest ZIP codes

  1. Denise Hausler, LPCTucson, AZ 857051225193287
  2. Tanya HillmanTucson, AZ 857051154651818
  3. Renata Inigo, LPCTucson, AZ 857051750579322
  4. Diana Iniguez-Corlew, LPCTucson, AZ 857051841482536
  5. Glenda Laird, M.ED.Tucson, AZ 857051699792036
  6. Mark Nichols, M.ED., MAC, NCC, LPCTucson, AZ 857051003950437
  7. Charlotte Peper, LPCTucson, AZ 857051073888020
  8. Randall Reynolds, MEDTucson, AZ 857051457474843

Common questions

What is Phyllis Marie Siebern, LPC's NPI number?

Phyllis Marie Siebern, LPC's National Provider Identifier (NPI) is 1326471871, issued on Aug 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Phyllis Marie Siebern, LPC located?

The NPPES record lists a practice address at 2435 N Castro Ave, Tucson, AZ, 85705. Phone: (520) 622-8030. Providers update this record themselves, so call before visiting.

How can I verify Phyllis Marie Siebern, LPC's license?

NPPES lists Arizona license number LPC14268, 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.