WILLIAMSBURGH INTERNAL MEDICINE P.C.
NPI 1417237389
Internal Medicine in Brooklyn, NY

Active since August 24, 2011
231 S 3RD ST, BROOKLYN, NY 11211(718) 599-0505(718) 599-6859 Get Directions Write a Review

NPPES record last updated: June 13, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Williamsburgh Internal Medicine P.c. NPPES

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

WILLIAMSBURGH INTERNAL MEDICINE P.C. (NPI 1417237389) is a healthcare organization registered as an internal medicine in Brooklyn, New York and active in the NPI registry since August 2011. The organization lists Sixto R Caro, Md, as its authorized official.

NPPES Registry Identity

NPI1417237389
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWILLIAMSBURGH INTERNAL MEDICINE P.C.
Location Address231 S 3RD STBrooklyn, NY 11211-5601
Mailing Address231 S 3rd StBrooklyn, NY 11211-5601 · (718) 599-0505 · Fax (718) 599-6859
Fax(718) 599-6859
Organization SubpartNo
Authorized OfficialSixto R CaroMd · (718) 599-0505
Enumeration DateAugust 24, 2011
Last NPPES UpdateJune 13, 2019
✔ NPI 1417237389 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
231 S 3RD ST, Brooklyn, NY 11211

Other Identifiers 1

Medicaid03372483NY

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)

Williamsburgh Internal Medicine P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Williamsburgh Internal Medicine P.C., which bills Medicare for the services they deliver. Of these, 2 practice at this address and 4 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Internal Medicine
NPI 1639138654
231 S 3RD ST
Brooklyn, NY 11211
(718) 599-0505
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1679674717
231 S 3RD ST
Brooklyn, NY 11211
(718) 599-0505
✔ PECOS✔ Accepts MedicareSame address
Infectious Disease
NPI 1710077409
81 IRVING PL STE 1-F
New York, NY 10003
(212) 260-7474
✔ PECOS✔ Accepts Medicare2.3 mi
Internal Medicine
NPI 1134190499
3726 76TH ST FL 1
Jackson Heights, NY 11372
(718) 762-8080
✔ PECOS4.4 mi
Obstetrics/Gynecology
NPI 1528123585
78 TODT HILL ROAD SUITE 107
Staten Island, NY 10314
(718) 273-6034
✔ PECOS✔ Accepts Medicare11 mi
Internal Medicine
NPI 1861578924
1575 HILLSIDE AVENUE SUITE 103
New Hyde Park, NY 11040
(516) 352-1804
✔ PECOS✔ Accepts Medicare15 mi

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 Williamsburgh Internal Medicine P.C.'s NPI number?

The NPI number for Williamsburgh Internal Medicine P.C. is 1417237389. It was assigned to this organization in the NPPES registry on August 24, 2011.

Where is Williamsburgh Internal Medicine P.C. located?

Williamsburgh Internal Medicine P.C. is located at 231 S 3rd St, Brooklyn, NY 11211. The listed phone number is (718) 599-0505.

What is Williamsburgh Internal Medicine P.C.'s specialty?

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

Is Williamsburgh Internal Medicine P.C. enrolled in Medicare?

Yes. Williamsburgh Internal Medicine P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Williamsburgh Internal Medicine P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Williamsburgh Internal Medicine 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. The largest specialties are Internal Medicine (4), Infectious Disease (1) and Obstetrics/Gynecology (1). Of these, 2 practice at this address and 4 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 Williamsburgh Internal Medicine P.C. was last updated on June 13, 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.