DR. HARRY CALVIN STEIN M.D.
NPI 1033323795
Internal Medicine - Addiction Medicine in Rockville, MD

NPI Status: Active since May 10, 2007

Contact Information

11140 ROCKVILLE PIKE STE 400
ROCKVILLE, MD
ZIP 20852
Phone: (561) 302-5014

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  • Individual
  • Male
  • Internal Medicine
  • Addiction Medicine

About HARRY STEIN

This page provides the complete NPI Profile along with additional information for Harry Stein, an internist established in Rockville, Maryland with a medical specialization in Internal Medicine, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1033323795 assigned on May 2007. The practitioner's primary taxonomy code is 207RA0401X with license number D0001138 (MD). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1033323795
Provider Name
DR. HARRY CALVIN STEIN M.D.
Gender
Male
Entity Type
Individual
Location Address
11140 ROCKVILLE PIKE STE 400 ROCKVILLE, MD 20852
Location Phone
(561) 302-5014
Mailing Address
11140 ROCKVILLE PIKE STE 400 ROCKVILLE, MD 20852
Mailing Phone
(561) 302-5014
Is Sole Proprietor?
Yes
Enumeration Date
05-10-2007
Last Update Date
07-21-2022
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An internist like Harry Stein 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 Addiction Medicine

Taxonomy Code
207RA0401X
Type
Allopathic & Osteopathic Physicians
License No.
D0001138
License State
MD
Taxonomy Description
An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.

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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 1033323795, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
0
Unchanged
Pos 3
3
Doubled → 6
Pos 4
3
Unchanged
Pos 5
3
Doubled → 6
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
5
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 3 → 6 3 → 6 3 → 6 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 6 + 3 + 6 + 2 + 6 + 7 + 1 + 8 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1033323795.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Speech-Language Pathologist
11140 ROCKVILLE PIKE STE 400
ROCKVILLE, MD 20852
Home Health Aide
11140 ROCKVILLE PIKE STE 400
ROCKVILLE, MD 20852
Counselor (Professional)
11140 ROCKVILLE PIKE STE 400
ROCKVILLE, MD 20852
Psychologist (Clinical Child & Adolescent)
11140 ROCKVILLE PIKE STE 400
NORTH BETHESDA, MD 20852
Nursing Home Administrator
11140 ROCKVILLE PIKE STE 400
ROCKVILLE, MD 20852
In Home Supportive Care
11140 ROCKVILLE PIKE STE 400
ROCKVILLE, MD 20852

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033323795, enumerated as an "individual" on May 10, 2007.

The provider is located at 11140 ROCKVILLE PIKE STE 400 ROCKVILLE, MD 20852 and the phone number is (561) 302-5014.

Internal Medicine with taxonomy code 207RA0401X and a focus in Addiction Medicine.