Mahlon K. Stewart, PT, DPT, GCS
Geriatric Physical Therapist · New York, NY
Mahlon K. Stewart, PT, DPT, GCS is a geriatric physical therapist with a practice address in New York, New York, and NPI 1952738973, issued on Oct 4, 2013. Check the license (New York 030689, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mahlon K. Stewart
- Credential
- PT, DPT, GCS
- Primary taxonomy
- Geriatric Physical Therapist 2251G0304X
- License numbers
- 030689 NY
40QA01288300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 50 E 10TH St, New York, NY 10003
- Phone
- (917) 533-4166
- Enumerated
- Oct 4, 2013
- Record last updated
- Oct 4, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (917) 300-0376
- Medicare enrollment
- Enrolled (PECOS I20140512000026); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2008
- Entity
- Type 1 · individual
Also registered at 50 E 10TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Myron Koltuv, PH.DClinical Psychologist1154447209
Verify Mahlon K. Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 030689Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Trustees OF Columbia University IN The City OF New YorkNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geriatric Physical Therapist providers in New York
There are 134 geriatric physical therapist records in New York.
Other geriatric physical therapist records in New York
- Catharine Abernatha-Neally, PTCorning, NY1487944526
- Lynn AbramsChappaqua, NY1578951315
- Lisa Accardi, PTStony Brook, NY1104561141
- Ma Girlie Acero, PTFloral Park, NY1073770517
- Alecia Adamek, PTGreene, NY1669412953
- Abena Agyemang, PTNew York, NY1629873955
- Raghunandan Alapakam Reddivari Kumara VenkataChappaqua, NY1548815020
- Stephanie Anello, DPTRochester, NY1427618362
- Nicole AngrisaniMahopac, NY1033815626
- Ameya Argekar, P.T.Brooklyn, NY1265790448
Common questions
What is Mahlon K. Stewart, PT, DPT, GCS's NPI number?
Mahlon K. Stewart, PT, DPT, GCS's National Provider Identifier (NPI) is 1952738973, issued on Oct 4, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Mahlon K. Stewart, PT, DPT, GCS located?
The NPPES record lists a practice address at 50 E 10TH St, New York, NY, 10003. Phone: (917) 533-4166. Providers update this record themselves, so call before visiting.
How can I verify Mahlon K. Stewart, PT, DPT, GCS's license?
NPPES lists New York license number 030689, as entered by the provider. Search the New York 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.