HOSPITALIST HEALTHCARE SERVICES PLLC
NPI 1275962011
Internal Medicine in White Plains, NY

Active since November 02, 2013
3 BARKER AVE, WHITE PLAINS, NY 10601(914) 949-1199 Get Directions Write a Review

NPPES record last updated: October 30, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 30, 2020, Nov 9, 2017, Feb 18, 2016 (3 updates tracked since 2016).

About Hospitalist Healthcare Services Pllc NPPES

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

HOSPITALIST HEALTHCARE SERVICES PLLC (NPI 1275962011) is a healthcare organization registered as an internal medicine in White Plains, New York and active in the NPI registry since November 2013. The organization lists David Istvan, Owner/president, as its authorized official.

NPPES Registry Identity

NPI1275962011
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHOSPITALIST HEALTHCARE SERVICES PLLC
Location Address3 BARKER AVEWhite Plains, NY 10601-1509
Mailing Address1643 Nw 136th Ave Ste 100Sunrise, FL 33323-2857 · (800) 424-3672
Organization SubpartNo
Authorized OfficialDavid IstvanOwner/president · (865) 693-1000
Enumeration DateNovember 2, 2013
Last NPPES UpdateOctober 30, 20203 updates tracked since enumeration
NPPES CertifiedOctober 30, 2020
✔ NPI 1275962011 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 6

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedFamily Medicine · Geriatric MedicineTaxonomy 207QG0300X
Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
3 BARKER AVE, White Plains, NY 10601

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hospitalist Healthcare Services Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

166

Medicare enrollment records show 166 clinicians reassign Medicare billing to Hospitalist Healthcare Services PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 16 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 15

Nurse Practitioner64
Internal Medicine28
Clinical Psychologist24
Psychiatry15
Physical Medicine and Rehabilitation9
Family Practice7
Podiatry5
Geriatric Medicine4
7 other specialties10

Nearest to this location (20)

See all 166
Internal Medicine
NPI 1811129562
3 BARKER AVE
White Plains, NY 10601
(914) 949-7900
✔ PECOS✔ Accepts MedicareSame address
Geriatric Medicine
NPI 1730263393
3 BARKER AVE FL 4
White Plains, NY 10601
(914) 949-1199
✔ PECOSSame address
Clinical Psychologist
NPI 1609893163
THREE BARKER AVE PARK AVENUE MEDICAL ASSOCIATES PC 4TH FLOOR
White Plains, NY 10601
(914) 949-1199
✔ PECOS0.1 mi
Nurse Practitioner
NPI 1619994159
THREE BARKER AVE PARK AVENUE MEDICAL ASSOCIATES PC 4TH FLOOR
White Plains, NY 10601
(914) 949-1199
✔ PECOS0.1 mi
Clinical Psychologist
NPI 1689747669
3 BARKER AVE 4TH FLOOR
White Plains, NY 10601
(914) 949-1199
✔ PECOS✔ Accepts Medicare0.1 mi
Podiatry
NPI 1295898732
3 BARKER AVE 2 ND FLOOR
White Plains, NY 10601
(914) 949-7900
✔ PECOS0.1 mi
Nurse Practitioner
NPI 1922436161
3 BARKER AVE
White Plains, NY 10601
(914) 949-7900
✔ PECOS✔ Accepts Medicare0.1 mi
Nurse Practitioner
NPI 1356372189
3 BARKER AVE 4TH FLOOR
White Plains, NY 10601
(914) 949-1199
✔ PECOS0.1 mi
Nurse Practitioner
NPI 1912170861
3 BARKER AVE 4TH FLOOR
White Plains, NY 10601
(914) 949-1199
✔ PECOS✔ Accepts Medicare0.1 mi
Internal Medicine
NPI 1801952510
3 BARKER AVE 4TH FLOOR
White Plains, NY 10601
(914) 949-7900
✔ PECOS✔ Accepts Medicare0.1 mi
General Practice
NPI 1205844784
120 CHURCH ST
White Plains, NY 10601
(203) 803-9038
✔ PECOS✔ Accepts Medicare0.1 mi
Psychiatry
NPI 1093754210
PARK AVENUE HEALTH CARE 3 BARKER AVE, 4TH FLOOR
White Plains, NY 10601
(914) 949-1199
✔ PECOS✔ Accepts Medicare0.2 mi
Physical Medicine and Rehabilitation
NPI 1154421998
146 ALEXANDER AVE
Hartsdale, NY 10530
(914) 907-5846
✔ PECOS1.3 mi
Clinical Psychologist
NPI 1023046950
5 WOODLAND DR
Pleasantville, NY 10570
(914) 773-1308
✔ PECOS6.6 mi
Ophthalmology
NPI 1356373534
140 LOCKWOOD AVE STE 220
New Rochelle, NY 10801
(914) 235-9500
✔ PECOS✔ Accepts Medicare8.5 mi
Internal Medicine
NPI 1841290723
69 S BROADWAY
Yonkers, NY 10701
(914) 376-5555
✔ PECOS9.6 mi
Internal Medicine
NPI 1780890574
2 SLEEPY HOLLOW RD
Chappaqua, NY 10514
(914) 666-5885
✔ PECOS11 mi
Nurse Practitioner
NPI 1578702809
5901 PALISADE AVE
Bronx, NY 10471
(718) 581-1625
✔ PECOS11 mi
Physical Medicine and Rehabilitation
NPI 1336152917
545 W 236TH ST SUITE C
Bronx, NY 10463
(718) 884-8115
✔ PECOS✔ Accepts Medicare13 mi
Geriatric Medicine
NPI 1396907689
2015 GRAND CONCOURSE SUITE B
Bronx, NY 10453
(718) 618-0401
✔ PECOS✔ Accepts Medicare15 mi
See all 166 clinicians

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

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hospitalist Healthcare Services PLLC's NPI number?

The NPI number for Hospitalist Healthcare Services PLLC is 1275962011. It was assigned to this organization in the NPPES registry on November 2, 2013.

Where is Hospitalist Healthcare Services PLLC located?

Hospitalist Healthcare Services PLLC is located at 3 Barker Ave, White Plains, NY 10601. The listed phone number is (914) 949-1199.

What is Hospitalist Healthcare Services PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Hospitalist Healthcare Services PLLC enrolled in Medicare?

Yes. Hospitalist Healthcare Services PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hospitalist Healthcare Services PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 166 clinicians in 15 Medicare specialties reassign their Medicare billing to Hospitalist Healthcare Services PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (64), Internal Medicine (28) and Clinical Psychologist (24). Of these, 2 practice at this address and 16 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Hospitalist Healthcare Services PLLC was last updated on October 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.