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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HOWARD BRENSILVER M.D.
NPI 1336134451
Internal Medicine in Mystic, CT

Active since September 14, 2005
200 SANDY HOLLOW RD, MYSTIC, CT 06355(860) 572-8911(860) 572-7758 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Howard Brensilver M.d. NPPES

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

DR. HOWARD BRENSILVER M.D. (NPI 1336134451) is an individual internal medicine provider in Mystic, Connecticut, licensed in Connecticut (015952) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1336134451
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. HOWARD BRENSILVERCredential: M.D.
Location Address200 SANDY HOLLOW RDMystic, CT 06355-1720
Mailing Address200 Sandy Hollow RdMystic, CT 06355-1720 · (860) 572-8911 · Fax (860) 572-7758
Phone(860) 572-8911
Fax(860) 572-7758
Sole ProprietorNo
Enumeration DateSeptember 14, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1336134451 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 015952
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.
200 SANDY HOLLOW RD, Mystic, CT 06355
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Other Providers at the Same Location NPPES 7

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

DR. THOMAS MARCH BLUM M.D.
Internal Medicine
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 572-8911
DR. JAMES DAVID SCARLES M.D.
Internal Medicine
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 572-8911
PRIOR LEWIS PARKER MD
Ophthalmology
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 536-4916
ROSEMARY CATHERINE BONTEMPI M.D.
Internal Medicine
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 572-8911
DR. JAMES FRANCIS SULLIVAN M.D.
Internal Medicine
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 572-8911
DR. WARREN LEWIS FIELDS M.D.
Internal Medicine
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 572-8911
MYSTIC MEDICAL GROUP, PC
Internal Medicine
200 SANDY HOLLOW RD
MYSTIC, CT 06355
Southeastern Connecticut Planning Region (860) 572-8911

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 Howard Brensilver's NPI number?

The NPI number for Howard Brensilver is 1336134451. It was assigned to this individual provider in the NPPES registry on September 14, 2005.

Where is Howard Brensilver located?

Howard Brensilver practices at 200 Sandy Hollow Rd, Mystic, CT 06355. The listed phone number is (860) 572-8911.

What is Howard Brensilver's specialty?

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

When was this NPI record last updated?

The NPPES record for Howard Brensilver was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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.