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MRS. LISA KNIERIM IVANOV CCC/SLP
NPI 1972847192
Speech-Language Pathologist in Manassas, VA

Active since November 15, 2012Accepts Medicare Assignment
8575 RIXLEW LN, MANASSAS, VA 20109(703) 257-2941 Get Directions Write a Review

NPPES record last updated: March 21, 2013. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Mrs. Lisa Knierim Ivanov Ccc/slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. LISA KNIERIM IVANOV CCC/SLP (NPI 1972847192) is an individual speech-language pathologist provider in Manassas, Virginia, licensed in Virginia (2202006805) and active in the NPI registry since November 2012. She is a graduate of Other (1990).

NPPES Registry Identity

NPI1972847192
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMRS. LISA KNIERIM IVANOVCredential: CCC/SLP
Location Address8575 RIXLEW LNManassas, VA 20109-3701
Mailing Address24476 Ripple CtAldie, VA 20105-5503 · (904) 703-9310
Phone(703) 257-2941
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateNovember 15, 2012
Last NPPES UpdateMarch 21, 2013
✔ NPI 1972847192 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in VA · 2202006805
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
8575 RIXLEW LN, Manassas, VA 20109
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Lisa Knierim Ivanov Ccc/slp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567881725
PECOS Enrollment IDI20201007002863

Medicare Billing Reassignments

2

Medicare enrollment records show Lisa Ivanov reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rww Senior Living Outpatient Rehab Services, LLC
82 mi
Physical Therapist
567 N PARHAM RD
Henrico, VA 23229
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • 14 clinicians in this Medicare group
NPI 1669292512 (866) 808-4133
Legacy Healthcare Services Inc
172 mi
Physical Therapist
3365 OGDEN RD
Roanoke, VA 24018
  • Reassigned Medicare billing, Virginia enrollment
  • 112 clinicians in this Medicare group
NPI 1740820828 (540) 682-7506

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TERI LEIGH TRESSLER P.T.
Physical Therapist
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770
JENNIFER SARISKY LCSW
Social Worker (Clinical)
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (301) 593-1315
MR. MICHAEL WOLFE
Occupational Therapist
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770
MS. JACQUELINE JOANNE CORRY DPT
Physical Therapist
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770
NEHAL PANIA BPT
Physical Therapy Assistant
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770
KRITIKA SHRESTHA
Occupational Therapist
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770
JOANNE KRISTEN BELLUSH MS, OTR/L
Occupational Therapist
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770
AMRUTA D GUNJAL
Physical Therapist
8575 RIXLEW LN
MANASSAS, VA 20109
Prince William County (703) 257-9770

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lisa Ivanov's NPI number?

The NPI number for Lisa Ivanov is 1972847192. It was assigned to this individual provider in the NPPES registry on November 15, 2012.

Where is Lisa Ivanov located?

Lisa Ivanov practices at 8575 Rixlew Ln, Manassas, VA 20109. The listed phone number is (703) 257-2941.

What is Lisa Ivanov's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Lisa Ivanov enrolled in Medicare?

Yes. Lisa Ivanov is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Lisa Ivanov's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lisa Ivanov reassigns Medicare benefits to 2 organizations: Rww Senior Living Outpatient Rehab Services, LLC (Henrico, VA) and Legacy Healthcare Services Inc (Roanoke, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lisa Ivanov's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lisa Ivanov was last updated on March 21, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.