Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William T Marshall, DO

Individual provider Surgery Physician · NPI 1174533061

Dr. William T Marshall, DO is a General Practice in Valhalla, New York. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 1999, 27 years ago. Practices with Bristol Hospital Multi Specialty Group, Inc, a 156-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
27
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
CT, NY
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

100 Woods Rd # A
Valhalla, NY 10595
Phone: (914) 493-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1000 Asylum Ave, Hartford, CT 06105-1770 — (860) 714-5237
  • 1000 Asylum Ave, Hartford, CT 06105-1770 — (860) 714-5237

Specialties & licences

Surgical Critical Care Physician (primary) Taxonomy 2086S0102X · Licence 296662 (NY)
Surgery Physician Taxonomy 208600000X · Licence 044420 (CT)
Specialist Taxonomy 174400000X · Licence 044420 (CT)

Record details

NPI number1174533061
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 9, 2006
Last updated in NPPESJanuary 24, 2019
Mailing address19 Bradhurst Ave Ste 3100n, Hawthorne, NY 10532-2140

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL PRACTICE
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 1999 (27 years in practice)
Group practice Bristol Hospital Multi Specialty Group, Inc. — 156 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Valhalla