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HORBAR AND HOCHWEISS, M.D., P.C.
NPI 1992001481
Internal Medicine in New York, NY

Active since February 01, 2011CLIA 33D0878826 · Waiver
47 E 77TH ST STE 205, NEW YORK, NY 10075(212) 570-9658(212) 570-9104 Get Directions Write a Review

NPPES record last updated: October 18, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 18, 2022, Apr 20, 2017 (2 updates tracked since 2017).

About Horbar And Hochweiss, M.d., P.c. NPPES

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

HORBAR AND HOCHWEISS, M.D., P.C. (NPI 1992001481) is a healthcare organization registered as an internal medicine in New York, New York and active in the NPI registry since February 2011. The organization holds a CLIA Waiver certificate valid through August 29, 2028 and lists Gary M Horbar, President, as its authorized official.

NPPES Registry Identity

NPI1992001481
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHORBAR AND HOCHWEISS, M.D., P.C.
Location Address47 E 77TH ST STE 205New York, NY 10075-1730
Mailing Address47 E 77th St Ste 205New York, NY 10075-1730 · (212) 570-9658 · Fax (212) 570-9104
Phone(212) 570-9658
Fax(212) 570-9104
Organization SubpartNo
Authorized OfficialGary M HorbarPresident · (212) 570-9658
Enumeration DateFebruary 1, 2011
Last NPPES UpdateOctober 18, 20222 updates tracked since enumeration
NPPES CertifiedOctober 18, 2022
✔ NPI 1992001481 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 135289
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 ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License 134540 (NY)
47 E 77TH ST STE 205, New York, NY 10075
Open in Google Maps ↗

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Horbar And Hochweiss, M.d., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateNew YorkEnrollment IDO20120307000161Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Horbar And Hochweiss, M.D., P.C., which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Sharon Hochweiss, M.D.
Internal Medicine
NPI 1417008889
47 E 77TH ST STE 205
New York, NY 10075
(212) 570-9119
✔ PECOSSame address
Gary Horbar, M.D.
Internal Medicine
NPI 1851442198
47 E 77TH ST STE 205
New York, NY 10075
(212) 570-9119
✔ PECOSSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D0878826

Horbar And Hochweiss MD PC · New York, NY
Active · expires Aug 29, 2028
CLIA Number33D0878826
Laboratory TypePhysician Office
Certificate Effective DateAugust 30, 2026
Certificate Expiration DateAugust 29, 2028
Laboratory DirectorDr. Sharon Hochweiss
Laboratory Phone(212) 570-9119
Laboratory LocationHorbar And Hochweiss MD PC47 East 77th Street - Suite 205, New York, NY 10075
CLIA data matches this NPI record on: Address
This certificate is issued to a laboratory to perform only waived tests.

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 Horbar And Hochweiss, M.D., P.C.'s NPI number?

The NPI number for Horbar And Hochweiss, M.D., P.C. is 1992001481. It was assigned to this organization in the NPPES registry on February 1, 2011.

Where is Horbar And Hochweiss, M.D., P.C. located?

Horbar And Hochweiss, M.D., P.C. is located at 47 E 77th St Ste 205, New York, NY 10075. The listed phone number is (212) 570-9658.

What is Horbar And Hochweiss, M.D., P.C.'s specialty?

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

Is Horbar And Hochweiss, M.D., P.C. enrolled in Medicare?

Yes. Horbar And Hochweiss, M.D., P.C. is registered in the Medicare PECOS enrollment system.

When is Horbar And Hochweiss, M.D., P.C.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Horbar And Hochweiss, M.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Horbar And Hochweiss, M.D., P.C.. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Horbar And Hochweiss, M.D., P.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D0878826) is associated with this NPI, valid through August 29, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Horbar And Hochweiss, M.D., P.C. was last updated on October 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.