DR. WILLIAM T MARSHALL DO
NPI 1174533061
Surgery - Surgical Critical Care in Valhalla, NY

Q: What is William Marshall's NPI number?

The NPI number for William Marshall is 1174533061. It was assigned to this individual provider in the NPPES registry on August 9, 2006.

Q: What is William Marshall's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.

Q: When was this NPI record last updated?

The NPPES record for William Marshall was last updated on January 24, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 09, 2006PECOS EnrolledAccepts Medicare Assignment

100 WOODS RD # A, VALHALLA, NY 10595(914) 493-7000 Get Directions Write a Review

NPPES record last updated: January 24, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 24, 2019, Nov 13, 2018, Nov 24, 2015 (3 updates tracked since 2015).

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About Dr. William T Marshall Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM T MARSHALL DO (NPI 1174533061) is an individual surgical critical care provider in Valhalla, New York, licensed in New York (296662) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with North Country Hospital And Health Center, and maintains a secondary practice location in Hartford.

NPPES Registry Identity

NPI1174533061

Entity TypeIndividualMale

Primary Taxonomy2086S0102X

Provider Legal NameDR. WILLIAM T MARSHALLCredential: DO

Location Address100 WOODS RD # AValhalla, NY 10595

Mailing Address19 Bradhurst Ave Ste 3100nHawthorne, NY 10532-2140 · (914) 909-9018 · Fax (914) 909-9028

Phone(914) 493-7000

Sole ProprietorNo

Medical School CMSNew York College Of Osteo Medicine Of New York Institute Of TechnologyGraduated 1999

Enumeration DateAugust 9, 2006

Last NPPES UpdateJanuary 24, 20193 updates tracked since enumeration

✔ NPI 1174533061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Surgical Critical CareAllopathic & Osteopathic Physicians

Taxonomy Code2086S0102X

License✔ Licensed in NY · 296662

Definition

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedSpecialistTaxonomy 174400000X · License 044420 (CT)

Also ListedSurgeryTaxonomy 208600000X · License 044420 (CT)

100 WOODS RD # A, Valhalla, NY 10595

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Secondary Practice Location 1

Location 11000 Asylum Ave, Suite 4320Hartford, CT 06105-1770 · Phone (860) 714-5237 · Fax (860) 714-8097

Other Identifiers 1

Other296662NY · Nys License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William T Marshall Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466455803

PECOS Enrollment IDI20060824000330

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show William Marshall reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bristol Hospital Multi Specialty Group, Inc

60 mi

General Practice

15 RIVERSIDE AVE
Bristol, CT 06010

Reassigned Medicare billing, Connecticut enrollment
222 clinicians in this Medicare group

NPI 1649265679 (860) 585-3906

Trinity Health Of New England Provider Network Organization Inc

75 mi

Internal Medicine

114 WOODLAND ST, SAINT FRANCIS MEDICAL GROUP INC.
Hartford, CT 06105

Reassigned Medicare billing, Connecticut enrollment
1,186 clinicians in this Medicare group

NPI 1003882812 (860) 714-1325

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

80 services55 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

78 services55 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

43 services39 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

23 services23 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

14 services14 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Country Hospital And Health Center

Critical Access Hospitals · Newport, VT

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number471304

Location189 Prouty DriveNewport, VT 05855 · Orleans County

Emergency services

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Alginate or other fiber gelling dressing, wound cover, sterile, pad size more than 16 sq. in. but less than or equal to 48 sq. in., each dressing A6197

DME-Medical/Surgical Supplies · category DA023N

2 suppliers11 claims315 services$15.86 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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