NPPES file of Aug 9, 2026

Stevie Kostelnik

Case Manager/Care Coordinator · Modesto, CA

Stevie Kostelnik is a case manager/care coordinator with a practice address in Modesto, California, and NPI 1144884107, issued on Apr 25, 2019. Check the license (California E2509194, as entered in NPPES) with the California 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
1144884107
Name
Stevie Kostelnik
Primary taxonomy
Case Manager/Care Coordinator 171M00000X
License number
E2509194 CA
Self-reported in NPPES; status is on the state search
Practice location
121 Downey Ave, Modesto, CA 95354
Phone
(209) 341-1824
Enumerated
Apr 25, 2019
Record last updated
Mar 16, 2022
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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8 nearest case manager/care coordinator records → All 22,803 in California → Look up another NPI →

Also registered at 121 Downey Ave

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

  1. Alicia AguilarAdult Companion1063383107
  2. Melanie AlanizPeer Specialist1730898172
  3. Leigh AlbrightAdult Companion1356206189
  4. Lisa AltemeyerMental Health Counselor1699375105
  5. Hugo AlvaradoCase Manager/Care Coordinator1407633670
  6. Arely AlvarezAdult Companion1639996044

Verify Stevie Kostelnik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license E2509194    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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Stevie Kostelnik among 22,803 case manager/care coordinator records in California

Stevie Kostelnik is one of 22,803 case manager/care coordinator records with a practice address in California. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2019, is newer than 57% of them.

  • NPI issued2019 · 57% of these records are older, 35% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2022 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 171M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

280 case manager/care coordinator records list a practice address in Modesto

They are 280 of the 9,262 NPPES records with a practice address in Modesto, and 22,803 case manager/care coordinator records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 22,803 in California → Every provider in Modesto → Case Manager/Care Coordinator nationwide →

The 8 case manager/care coordinator records with the nearest ZIP codes

  1. Keven DobbinModesto, CA 953541629263975
  2. Shikha JamnadasModesto, CA 953541104011022
  3. Daniel LydayModesto, CA 953541871612077
  4. Aaron MartinezModesto, CA 953541548391212
  5. Aleisa McHenryModesto, CA 953541710007869
  6. Keith MeyersModesto, CA 953541487773271
  7. Maria Regina MicoModesto, CA 953541013040245
  8. Regina PerdomoModesto, CA 953541477670651

Common questions

What is Stevie Kostelnik's NPI number?

Stevie Kostelnik's National Provider Identifier (NPI) is 1144884107, issued on Apr 25, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Stevie Kostelnik located?

The NPPES record lists a practice address at 121 Downey Ave, Modesto, CA, 95354. Phone: (209) 341-1824. Providers update this record themselves, so call before visiting.

How can I verify Stevie Kostelnik's license?

NPPES lists California license number E2509194, as entered by the provider. Search the California 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.

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.