NPPES file of Aug 9, 2026

Jacob George Messing, LCSW

Clinical Social Worker · Merrillville, IN

Jacob George Messing, LCSW is a clinical social worker with a practice address in Merrillville, Indiana, and NPI 1487930954, issued on Oct 28, 2011. Check the license (Indiana 34003199A, as entered in NPPES) with the Indiana 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
1487930954
Name
Jacob George Messing
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
34003199A IN
87001486A IN
Self-reported in NPPES; status is on the state search
Practice location
8555 Taft St, Merrillville, IN 46410
Phone
(219) 769-4005
Enumerated
Oct 28, 2011
Record last updated
Jul 27, 2023
Fax
(219) 769-2508
Medicare enrollment
Enrolled (PECOS I20111110000790); 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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Also registered at 8555 Taft St

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

  1. Carla AilesCounselor1639206303
  2. Nora Alfonsi, RDRegistered Dietitian1548816077
  3. Konstantine Alikakos, DOStudent in an Organized Health Care Education/Training Program1770415689
  4. Angel AlvarezCounselor1457662629
  5. Krystal Ames, BACounselor1396073839
  6. Cami Antrim, LMHCMental Health Counselor1942269840

Verify Jacob George Messing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 34003199A
    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 Indiana 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. Franciscan Physician NetworkDyer, IN

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

Jacob George Messing among 5,650 clinical social worker records in Indiana

Jacob George Messing, LCSW is one of 5,650 clinical social worker records with a practice address in Indiana. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 39% of them.

  • NPI issued2011 · 39% of these records are older, 58% newer
  • In a Medicare fileYes · 19% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated1979 · median 2012 among the 1,393 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

85 clinical social worker records list a practice address in Merrillville

They are 85 of the 1,972 NPPES records with a practice address in Merrillville, and 5,650 clinical social worker records in Indiana.

The 8 clinical social worker records with the nearest ZIP codes

  1. Leigh Barnes, MSW, LCSWMerrillville, IN 464101760470694
  2. Natalie Bauer, L.C.S.W.Merrillville, IN 464101942301890
  3. Drew Brummell, LCSWMerrillville, IN 464101174565402
  4. Arma Johnson, LCSWMerrillville, IN 464101417975699
  5. Laura Moseng, HSPPMerrillville, IN 464101356333587
  6. Lauren Pellegrini-Hubster, LCSWMerrillville, IN 464101811924798
  7. Lauren Peterson, LCSWMerrillville, IN 464101891796827
  8. Cynthia Schiller, LCSW, ACSWMerrillville, IN 464101194760892

Common questions

What is Jacob George Messing, LCSW's NPI number?

Jacob George Messing, LCSW's National Provider Identifier (NPI) is 1487930954, issued on Oct 28, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Jacob George Messing, LCSW located?

The NPPES record lists a practice address at 8555 Taft St, Merrillville, IN, 46410. Phone: (219) 769-4005. Providers update this record themselves, so call before visiting.

How can I verify Jacob George Messing, LCSW's license?

NPPES lists Indiana license number 34003199A, as entered by the provider. Search the Indiana 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.

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.