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KATERINA D STEPALAVICH LMHC
NPI 1811616758
Counselor - Mental Health in Waltham, MA

Active since August 24, 2022PECOS EnrolledAccepts Medicare Assignment
431 RIVER ST STE 1, WALTHAM, MA 02453(781) 966-0597(781) 701-8905 Get Directions Write a Review

NPPES record last updated: June 16, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Katerina D Stepalavich Lmhc NPPES

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

KATERINA D STEPALAVICH LMHC (NPI 1811616758) is an individual mental health provider in Waltham, Massachusetts, licensed in Massachusetts (LMHC10004758) and active in the NPI registry since August 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1811616758
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameKATERINA D STEPALAVICHCredential: LMHC
Location Address431 RIVER ST STE 1Waltham, MA 02453-5483
Mailing Address431 River St Ste 1Waltham, MA 02453-5483 · (781) 966-0597 · Fax (781) 701-8905
Phone(781) 966-0597
Fax(781) 701-8905
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateAugust 24, 2022
Last NPPES UpdateJune 16, 2026
NPPES CertifiedJune 16, 2026
✔ NPI 1811616758 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in MA · LMHC10004758
431 RIVER ST STE 1, Waltham, MA 02453
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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

Katerina D Stepalavich Lmhc 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 ID6406359538
PECOS Enrollment IDI20250912003261
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

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

Northeast Health Services, LLC
33 mi
Mental Health (Including Community Mental Health Center)
30 TAUNTON GREEN, SUITE 5
Taunton, MA 02780
  • Reassigned Medicare billing, Massachusetts enrollment
  • 689 clinicians in this Medicare group
NPI 1225067481 (508) 880-6666
Healthdrive Behavioral Health Services, PLLC
93 mi
Geriatric Psychiatry
101 CENTERPOINT DR STE 215
Middletown, CT 06457
  • Reassigned Medicare billing, Massachusetts enrollment
  • 108 clinicians in this Medicare group
NPI 1760909279 (888) 964-6681

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.

MEGAN HARRINGTON
Counselor
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 891-0555
HSIAO-HAN LIN
Counselor (Mental Health)
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 891-0555
KELLEY DARON LICSW
Social Worker (Clinical)
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 966-5644
MS. MARCY WYNNE WEST LICSW
Social Worker (Clinical)
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 966-5697
MS. ZIHAN YANG LMHC
Counselor
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 966-5662
JILLIAN CAMPBELL MSW, LCSW
Social Worker (Clinical)
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (203) 217-9683
MRS. MINOLDA JEAN- JOSEPH MSW
Social Worker (Clinical)
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 423-5225
JULIA NUSS
Peer Specialist
431 RIVER ST STE 1
WALTHAM, MA 02453
Middlesex County (781) 966-5686

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 Katerina Stepalavich's NPI number?

The NPI number for Katerina Stepalavich is 1811616758. It was assigned to this individual provider in the NPPES registry on August 24, 2022.

Where is Katerina Stepalavich located?

Katerina Stepalavich practices at 431 River St Ste 1, Waltham, MA 02453. The listed phone number is (781) 966-0597.

What is Katerina Stepalavich's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Katerina Stepalavich enrolled in Medicare?

Yes. Katerina Stepalavich 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 Katerina Stepalavich's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katerina Stepalavich reassigns Medicare benefits to 2 organizations: Northeast Health Services, LLC (Taunton, MA) and Healthdrive Behavioral Health Services, PLLC (Middletown, CT). 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 Katerina Stepalavich'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 Katerina Stepalavich was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.