NPPES file of Aug 9, 2026

Judith Lori Greth, PT

Physical Therapist · Columbia, MD

Judith Lori Greth, PT is a physical therapist with a practice address in Columbia, Maryland, and NPI 1518193143, issued on Jun 10, 2009. Check the license (Maryland 23144, as entered in NPPES) with the Maryland 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
1518193143
Name
Judith Lori Greth
Credential
PT
Primary taxonomy
Physical Therapist 225100000X
License numbers
23144 MD
PT015988 PA
Self-reported in NPPES; status is on the state search
Practice location
5435 Beaver Kill RD, Columbia, MD 21044
Phone
(410) 740-0883
Enumerated
Jun 10, 2009
Record last updated
Jun 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20101025001135); 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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Verify Judith Lori Greth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 23144
    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 Maryland 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. Kaiser Foundation Health Plan OF The Mid Atlantic States, IncNottingham, MD

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

Judith Lori Greth among 6,177 physical therapist records in Maryland

Judith Lori Greth, PT is one of 6,177 physical therapist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 31% of them.

  • NPI issued2009 · 31% of these records are older, 65% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2002 · median 2015 among the 2,359 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

222 physical therapist records list a practice address in Columbia

They are 222 of the 6,690 NPPES records with a practice address in Columbia, and 6,177 physical therapist records in Maryland.

The 8 physical therapist records with the nearest ZIP codes

  1. Shelly Carroll, PTColumbia, MD 210441861412025
  2. Dean Clatworthy, PTColumbia, MD 210441922025667
  3. Priya Das, MSPT,MSEDColumbia, MD 210441174564660
  4. Laura Flynn, PTColumbia, MD 210441013070788
  5. Elizabeth Gallelli, PT, DPTColumbia, MD 210441114019403
  6. Susan Hull, PTColumbia, MD 210441245376284
  7. Christina Majkrzak, PT, DPTColumbia, MD 210441629131453
  8. Travis Marquess, M.P.T.Columbia, MD 210441891847661

Common questions

What is Judith Lori Greth, PT's NPI number?

Judith Lori Greth, PT's National Provider Identifier (NPI) is 1518193143, issued on Jun 10, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Judith Lori Greth, PT located?

The NPPES record lists a practice address at 5435 Beaver Kill RD, Columbia, MD, 21044. Phone: (410) 740-0883. Providers update this record themselves, so call before visiting.

How can I verify Judith Lori Greth, PT's license?

NPPES lists Maryland license number 23144, as entered by the provider. Search the Maryland 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.