NPPES file of Aug 9, 2026

William Liao Chestnut, MSPT

Physical Therapist · Laurel, MD

William Liao Chestnut, MSPT is a physical therapist with a practice address in Laurel, Maryland, and NPI 1598899098, issued on Mar 15, 2007. Check the license (Maryland 21041, 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
1598899098
Name
William Liao Chestnut
Credential
MSPT
Primary taxonomy
Physical Therapist 225100000X
License number
21041 MD
Self-reported in NPPES; status is on the state search
Practice location
13946 Baltimore Ave, Laurel, MD 20707
Phone
(301) 498-2213
Enumerated
Mar 15, 2007
Record last updated
Mar 26, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(301) 498-2213
Medicare enrollment
Enrolled (PECOS I20130529000713); 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 13946 Baltimore Ave

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

  1. Sheilani Eisenbeiss, PTPhysical Therapist1881866051
  2. Ronald Herbst, MPTPhysical Therapist1447264718
  3. Gayna Lacy, DPTPhysical Therapist1639370091
  4. Karen Loomis, MSPTPhysical Therapist1124386958
  5. Kristine Carmela LosaritoPhysical Therapist1952668345
  6. Eric Paul Lubi, PTPhysical Therapist1245477009

Verify William Liao Chestnut 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 21041
    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. Physical And Sports Rehab IncLargo, MD

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

William Liao Chestnut among 6,177 physical therapist records in Maryland

William Liao Chestnut, MSPT 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 2007, is newer than 15% of them.

  • NPI issued2007 · 15% of these records are older, 73% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2003 · median 2015 among the 2,359 with a school on file
  • Record last updated2013 · 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).

121 physical therapist records list a practice address in Laurel

They are 121 of the 2,372 NPPES records with a practice address in Laurel, and 6,177 physical therapist records in Maryland.

The 8 physical therapist records with the nearest ZIP codes

  1. Michelle Barbare, M.P.T.Laurel, MD 207071831395318
  2. Ronald Herbst, MPTLaurel, MD 207071447264718
  3. Brian Hoy, PTLaurel, MD 207071811974355
  4. Gayna Lacy, DPTLaurel, MD 207071639370091
  5. Liza Lisay, P.T.Laurel, MD 207071144334657
  6. Gwendolyn O'Tang, PTLaurel, MD 207071225231913
  7. Karen Obrochta, PTLaurel, MD 207071265574636
  8. Keva Price, P.T.Laurel, MD 207071124146915

Common questions

What is William Liao Chestnut, MSPT's NPI number?

William Liao Chestnut, MSPT's National Provider Identifier (NPI) is 1598899098, issued on Mar 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is William Liao Chestnut, MSPT located?

The NPPES record lists a practice address at 13946 Baltimore Ave, Laurel, MD, 20707. Phone: (301) 498-2213. Providers update this record themselves, so call before visiting.

How can I verify William Liao Chestnut, MSPT's license?

NPPES lists Maryland license number 21041, 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.