NPPES file of Aug 9, 2026

Lisa Knierim Ivanov, CCC/SLP

Speech-Language Pathologist · Manassas, VA

Lisa Knierim Ivanov, CCC/SLP is a speech-language pathologist with a practice address in Manassas, Virginia, and NPI 1972847192, issued on Nov 15, 2012. Check the license (Virginia 2202006805, as entered in NPPES) with the Virginia 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
1972847192
Name
Lisa Knierim Ivanov
Credential
CCC/SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
2202006805 VA
Self-reported in NPPES; status is on the state search
Practice location
8575 Rixlew LN, Manassas, VA 20109
Phone
(703) 257-2941
Enumerated
Nov 15, 2012
Record last updated
Mar 21, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20201007002863); 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 speech-language pathologist records → All 4,939 in Virginia → Look up another NPI →

Also registered at 8575 Rixlew LN

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

  1. Joanne Bellush, MS, OTR/LOccupational Therapist1285824490
  2. Sarah BeltonSpeech-Language Pathologist1407603467
  3. Yama Bundu, NPPsychiatric/Mental Health Nurse Practitioner1952132003
  4. Jacqueline Corry, DPTPhysical Therapist1124025077
  5. Lissette Dials, SLPSpeech-Language Pathologist1346494523
  6. Irene Diolazo Conlon, PTPhysical Therapist1508150566

Verify Lisa Knierim Ivanov in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Virginia board licenses this profession
    Search for license 2202006805    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 Virginia 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. Legacy Healthcare Services IncGainesville, VA

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

Lisa Knierim Ivanov among 4,939 speech-language pathologist records in Virginia

Lisa Knierim Ivanov, CCC/SLP is one of 4,939 speech-language pathologist records with a practice address in Virginia. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 23% of them.

  • NPI issued2012 · 23% of these records are older, 74% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 4% of these records are
  • Graduated1990 · median 2016 among the 215 with a school on file
  • Record last updated2013 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

115 speech-language pathologist records list a practice address in Manassas

They are 115 of the 2,327 NPPES records with a practice address in Manassas, and 4,939 speech-language pathologist records in Virginia.

All 4,939 in Virginia → Every provider in Manassas → Speech-Language Pathologist nationwide →

The 8 speech-language pathologist records with the nearest ZIP codes

  1. Ashley AndersonManassas, VA 201091154638823
  2. Jeri Bard, MA,CCC-SLPManassas, VA 201091154611671
  3. Jessa-Marie Boehm, M.S.Manassas, VA 201091760740005
  4. Lissette Dials, SLPManassas, VA 201091346494523
  5. Christine Kopp, SLPManassas, VA 201091346499365
  6. Susan Matthews, MS, CCC-SLPManassas, VA 201091255470688
  7. Amy Nojaim, MA,CCC,SLPManassas, VA 201091003143884
  8. Stacie Porter, M.S.,CCC-SLPManassas, VA 201091760539456

Common questions

What is Lisa Knierim Ivanov, CCC/SLP's NPI number?

Lisa Knierim Ivanov, CCC/SLP's National Provider Identifier (NPI) is 1972847192, issued on Nov 15, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Lisa Knierim Ivanov, CCC/SLP located?

The NPPES record lists a practice address at 8575 Rixlew LN, Manassas, VA, 20109. Phone: (703) 257-2941. Providers update this record themselves, so call before visiting.

How can I verify Lisa Knierim Ivanov, CCC/SLP's license?

NPPES lists Virginia license number 2202006805, as entered by the provider. Search the Virginia 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.