NPPES file of Aug 9, 2026

Erin Olszak

Speech-Language Pathologist · King Of Prussia, PA

Erin Olszak is a speech-language pathologist with a practice address in King Of Prussia, Pennsylvania, and NPI 1629582010, issued on Nov 22, 2017. Check the license (Pennsylvania SL011874, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629582010
Name
Erin Olszak
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
SL011874 PA
Self-reported in NPPES; status is on the state search
Practice location
1001 W 9TH Ave Ste Bandc, King Of Prussia, PA 19406
Phone
(610) 831-1865
Enumerated
Nov 22, 2017
Record last updated
Nov 22, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(877) 891-3208
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1001 W 9TH Ave Ste Bandc

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

  1. Marisa CoopermanBehavior Analyst1295222131
  2. Yanwei Hu, BCBABehavior Analyst1578077244
  3. Anne Johnston, BCBABehavior Analyst1619489127
  4. Sara Jones, M.S., BCBA, LBSBehavior Analyst1649715749
  5. Jamie LarsonAssistant Behavior Analyst1831689298
  6. Lauren Weiner, MS, BCBABehavior Analyst1487178133

Verify Erin Olszak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license SL011874
    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
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26 speech-language pathologist records list a practice address in King Of Prussia

They are 26 of the 1,391 NPPES records with a practice address in King Of Prussia, and 7,128 speech-language pathologist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other speech-language pathologist records in Pennsylvania

  1. Karleigh AaronIndiana, PA1346011418
  2. Lee Aaron, CCC.SLPPhiladelphia, PA1336311984
  3. Brooke Abbonizio, CCC-SLPAmbler, PA1629556378
  4. Kylie Abbott, SLPKingston, PA1477943538
  5. Erin Abdul-AlPittsburgh, PA1053924787
  6. Sultana Abdur RaheemPhiladelphia, PA1093532087
  7. Elizabeth Aber, MS, CCC-SLPPittsburgh, PA1750940458
  8. Catherine Abild, SLPDrums, PA1588183685
  9. Lynn Ables, SPEECH THERAPISTAltoona, PA1831739556
  10. Ilissa Abovitz, M.S. CCC-SLPSouthampton, PA1487325361

Common questions

What is Erin Olszak's NPI number?

Erin Olszak's National Provider Identifier (NPI) is 1629582010, issued on Nov 22, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Erin Olszak located?

The NPPES record lists a practice address at 1001 W 9TH Ave Ste Bandc, King Of Prussia, PA, 19406. Phone: (610) 831-1865. Providers update this record themselves, so call before visiting.

How can I verify Erin Olszak's license?

NPPES lists Pennsylvania license number SL011874, as entered by the provider. Search the Pennsylvania 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.