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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. KENNETH HILLEL SHUBIN STEIN M.D.
NPI 1437441987
Internal Medicine in Westport, CT

Active since May 03, 2011PECOS Enrolled
55 POST RD W, WESTPORT, CT 06880(917) 905-7236(917) 475-4703 Get Directions Write a Review

NPPES record last updated: August 31, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 31, 2026, Sep 16, 2022, Oct 10, 2018 and 2 more (5 updates tracked since 2018).

About Dr. Kenneth Hillel Shubin Stein M.d. NPPES

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

DR. KENNETH HILLEL SHUBIN STEIN M.D. (NPI 1437441987) is an individual internal medicine provider in Westport, Connecticut, licensed in New York (226900) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS and maintains a secondary practice location in Southport.

NPPES Registry Identity

NPI1437441987
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. KENNETH HILLEL SHUBIN STEINCredential: M.D.
Location Address55 POST RD WWestport, CT 06880-4235
Mailing Address55 Post Rd W Fl 2Westport, CT 06880-4235 · (917) 453-1081 · Fax (917) 475-4703
Phone(917) 905-7236
Fax(917) 475-4703
Sole ProprietorNo
Enumeration DateMay 3, 2011
Last NPPES UpdateAugust 31, 20265 updates tracked since enumeration
NPPES CertifiedAugust 31, 2026
✔ NPI 1437441987 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 226900
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 ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 69862 (CT)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
55 POST RD W, Westport, CT 06880
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Secondary Practice Location 1

Location 13449 Post RdSouthport, CT 06890-1399 · Phone (917) 905-7236 · Fax (917) 475-4703

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kenneth Hillel Shubin Stein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06880 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

CORINA V LOPEZ HOFFMAN
Social Worker
55 POST RD W
WESTPORT, CT 06880
Western Connecticut Planning Region (203) 858-2342

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 Kenneth Shubin Stein's NPI number?

The NPI number for Kenneth Shubin Stein is 1437441987. It was assigned to this individual provider in the NPPES registry on May 3, 2011.

Where is Kenneth Shubin Stein located?

Kenneth Shubin Stein practices at 55 Post Rd W, Westport, CT 06880. The listed phone number is (917) 905-7236.

What is Kenneth Shubin Stein's specialty?

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

Is Kenneth Shubin Stein enrolled in Medicare?

Yes. Kenneth Shubin Stein is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Kenneth Shubin Stein was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.