WARREN STEINBERG MD PC
NPI 1770770232
Internal Medicine in Westport, CT

NPI Status: Active since September 28, 2007

Contact Information

225 MAIN ST
WESTPORT, CT
ZIP 06880
Phone: (203) 222-9533
Fax: (203) 222-1933

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  • Organization
  • Internal Medicine
  • CLIA Number: 07D0101939
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 09-15-2026

About WARREN STEINBERG MD PC

This page provides the complete NPI Profile along with additional information for Warren Steinberg Md Pc, an internist established in Westport, Connecticut operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1770770232 assigned on September 2007. The practitioner's primary taxonomy code is 207R00000X with license number 020694 (CT). The provider is registered as an organization and their NPI record was last updated 19 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Warren Richard Steinberg M.d. (President)

NPI
1770770232
Provider Name
WARREN STEINBERG MD PC
Entity Type
Organization
Location Address
225 MAIN ST WESTPORT, CT 06880
Location Phone
(203) 222-9533
Location Fax
(203) 222-1933
Mailing Address
225 MAIN ST WESTPORT, CT 06880
Mailing Phone
(203) 222-9533
Mailing Fax
(203) 222-1933
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-28-2007
Last Update Date
09-28-2007
Code Navigator

An internist like Warren Steinberg Md Pc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
020694
License State
CT
Taxonomy Description
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. WARREN RICHARD STEINBERG M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(203) 222-9533

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
07D0101939
Facility Type
Physician Office
Certificate Effective Date
September 16, 2024
Certificate Expiration Date
September 15, 2026
Laboratory Director
WARREN R. STEINBERG MD
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Warren Steinberg Md Pc in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1770770232, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
2
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 7 → 14 → 5 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 7 + 1 + 4 + 0 + 1 + 4 + 7 + 0 + 2 + 6 + 24 = 58

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1770770232.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Counselor (Professional)
225 MAIN ST, LL1
WESTPORT, CT 06880
Psychiatry & Neurology (Psychiatry)
225 MAIN ST, L-1
WESTPORT, CT 06880
Internal Medicine
225 MAIN ST
WESTPORT, CT 06880
Dentist
225 MAIN ST, SUITE #304
WESTPORT, CT 06880
Chiropractor (Rehabilitation)
225 MAIN ST
WESTPORT, CT 06880
Advanced Practice Midwife
225 MAIN ST, SUITE 204
WESTPORT, CT 06880
Marriage & Family Therapist
225 MAIN ST
WESTPORT, CT 06880
Chiropractor
225 MAIN ST, SUITE 204
WESTPORT, CT 06880
Social Worker (Clinical)
225 MAIN ST, # 1
WESTPORT, CT 06880
Internal Medicine
225 MAIN ST, SUITE 101
WESTPORT, CT 06880
Psychiatry & Neurology (Psychiatry)
225 MAIN ST
WESTPORT, CT 06880
Obstetrics & Gynecology (Reproductive Endocrinology)
225 MAIN ST
WESTPORT, CT 06880
Psychiatry & Neurology (Child & Adolescent Psychiatry)
225 MAIN ST, LOWER LEVEL, SUITE L-1
WESTPORT, CT 06880

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770770232, enumerated as an "organization" on September 28, 2007.

The provider is located at 225 MAIN ST WESTPORT, CT 06880 and the phone number is (203) 222-9533.

Internal Medicine with taxonomy code 207R00000X.