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IVANKA A. VASSILEVA, M.D., P.C.
NPI 1245428630
Family Medicine in Lawton, OK

Active since October 10, 2007CLIA 37D1094387 · Waiver
4411 W GORE BLVD, SUITE B-10, LAWTON, OK 73505(580) 354-9600(580) 354-9621 Get Directions Write a Review

NPPES record last updated: February 9, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ivanka A. Vassileva, M.d., P.c. NPPES

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

IVANKA A. VASSILEVA, M.D., P.C. (NPI 1245428630) is a healthcare organization registered as a family medicine in Lawton, Oklahoma and active in the NPI registry since October 2007. The organization holds a CLIA Waiver certificate valid through January 15, 2027 and lists Ivanka A. Vassileva, Owner, as its authorized official.

NPPES Registry Identity

NPI1245428630
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameIVANKA A. VASSILEVA, M.D., P.C.
Location Address4411 W GORE BLVD, SUITE B-10Lawton, OK 73505-5977
Mailing Address4411 W Gore Blvd, Suite B-10Lawton, OK 73505-5977 · (580) 354-9600 · Fax (580) 354-9621
Phone(580) 354-9600
Fax(580) 354-9621
Organization SubpartNo
Authorized OfficialIvanka A. VassilevaOwner · (580) 354-9600
Enumeration DateOctober 10, 2007
Last NPPES UpdateFebruary 9, 2012
✔ NPI 1245428630 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in OK · 22970
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4411 W GORE BLVD, Lawton, OK 73505
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Other Identifiers 1

Medicare PIN300522163OK

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ivanka A. Vassileva, M.d., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ivanka A. Vassileva, M.D., P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Ivanka Vassileva, MD
Family Practice
NPI 1295729929
4411 W GORE BLVD STE B10
Lawton, OK 73505
(580) 354-9600
✔ PECOS✔ Accepts MedicareSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 37D1094387

Ivanka A Vassileva, MD · Lawton, OK
Active · expires Jan 15, 2027
CLIA Number37D1094387
Laboratory TypePhysician Office
Certificate Effective DateJanuary 16, 2025
Certificate Expiration DateJanuary 15, 2027
Laboratory DirectorIvanka A. Vassileva, MD
Laboratory Phone(580) 354-9600
Laboratory LocationIvanka A Vassileva, MD4411 W Gore Blvd, Suite B-10, Lawton, OK 73505
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Ivanka A. Vassileva, M.D., P.C.'s NPI number?

The NPI number for Ivanka A. Vassileva, M.D., P.C. is 1245428630. It was assigned to this organization in the NPPES registry on October 10, 2007.

Where is Ivanka A. Vassileva, M.D., P.C. located?

Ivanka A. Vassileva, M.D., P.C. is located at 4411 W Gore Blvd Suite B-10, Lawton, OK 73505. The listed phone number is (580) 354-9600.

What is Ivanka A. Vassileva, M.D., P.C.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Ivanka A. Vassileva, M.D., P.C. enrolled in Medicare?

Yes. Ivanka A. Vassileva, M.D., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ivanka A. Vassileva, M.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Ivanka A. Vassileva, M.D., P.C.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Ivanka A. Vassileva, M.D., P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 37D1094387) is associated with this NPI, valid through January 15, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Ivanka A. Vassileva, M.D., P.C. was last updated on February 9, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.