RICHARD A BERNSTEIN MD PA
NPI 1659471241
Internal Medicine in Annapolis, MD

NPI Status: Active since September 23, 2006

Contact Information

133 DEFENSE HWY
SUITE 109
ANNAPOLIS, MD
ZIP 21401
Phone: (410) 224-5558
Fax: (410) 224-7321

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  • Organization
  • Internal Medicine
  • CLIA Number: 21D0219739
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 08-17-2027

About RICHARD A BERNSTEIN MD PA

This page provides the complete NPI Profile along with additional information for Richard A Bernstein Md Pa, an internist established in Annapolis, Maryland operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1659471241 assigned on September 2006. The practitioner's primary taxonomy code is 207R00000X with license number D0033069 (MD). The provider is registered as an organization and their NPI record was last updated one year 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 provider's . The authorized official of this NPI record is Dr. Richard Allen Bernstein M.d. (President/owner)

NPI
1659471241
Provider Legal Name
RICHARD A BERNSTEIN MD PA
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
133 DEFENSE HWY SUITE 109 ANNAPOLIS, MD 21401
Location Phone
(410) 224-5558
Location Fax
(410) 224-7321
Mailing Address
133 DEFENSE HWY SUITE 109 ANNAPOLIS, MD 21401
Mailing Phone
(410) 224-5558
Mailing Fax
(410) 224-7321
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-23-2006
Last Update Date
09-11-2025
Code Navigator

An internist like Richard A Bernstein Md Pa 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.
D0033069
License State
MD
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207RA0201XAllopathic & Osteopathic Physicians

Internal Medicine
Allergy & Immunology

D0033069 (MD)
2207RP1001XAllopathic & Osteopathic Physicians

Internal Medicine
Pulmonary Disease

D0033069 (MD)

Group Taxonomy 193400000X MULTIPLE 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. RICHARD ALLEN BERNSTEIN M.D.

Authorized Official Title
PRESIDENT/OWNER
Authorized Official Phone
(410) 224-5558

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
21D0219739
Facility Type
Physician Office
Certificate Effective Date
August 18, 2025
Certificate Expiration Date
August 17, 2027
Laboratory Director
RICHARD A. BERNSTEIN MD
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Richard A Bernstein Md Pa to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1659471241, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
Check
1
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 5 → 10 → 1 4 → 8 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 8 + 7 + 2 + 2 + 8 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1659471241.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Family Medicine
133 DEFENSE HWY, SUITE 211
ANNAPOLIS, MD 21401
Psychologist
133 DEFENSE HWY, SUITE 107
ANNAPOLIS, MD 21401
Psychologist (Clinical)
133 DEFENSE HWY, SUITE 210
ANNAPOLIS, MD 21401
Dentist (General Practice)
133 DEFENSE HWY, SUITE 103
ANNAPOLIS, MD 21401
Psychologist (Clinical)
133 DEFENSE HWY, SUITE 210
ANNAPOLIS, MD 21401
Social Worker (Clinical)
133 DEFENSE HWY, SUITE 114
ANNAPOLIS, MD 21401
Social Worker (Clinical)
133 DEFENSE HWY, SUITE 210, THE COURTYARDS
ANNAPOLIS, MD 21401
Internal Medicine
133 DEFENSE HWY, SUITE 112
ANNAPOLIS, MD 21401
Internal Medicine
133 DEFENSE HWY, SUITE 111
ANNAPOLIS, MD 21401
Psychiatry & Neurology (Psychiatry)
133 DEFENSE HWY, SUITE 114
ANNAPOLIS, MD 21401
Psychologist (Clinical)
133 DEFENSE HWY, SUITE #210
ANNAPOLIS, MD 21401
Internal Medicine
133 DEFENSE HWY, UNIT 112
ANNAPOLIS, MD 21401
Internal Medicine (Pulmonary Disease)
133 DEFENSE HWY, SUITE 109
ANNAPOLIS, MD 21401
Registered Nurse
133 DEFENSE HWY
ANNAPOLIS, MD 21401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659471241, enumerated as an "organization" on September 23, 2006.

The provider is located at 133 DEFENSE HWY SUITE 109 ANNAPOLIS, MD 21401 and the phone number is (410) 224-5558.

Internal Medicine with taxonomy code 207R00000X.