RICHARD D. ALEXANDER MD – NPI #1831145580
Internal Medicine

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

RICHARD ALEXANDER is a physician located in SALEM, MA. NPPES has assigned the NPI number 1831145580 to RICHARD ALEXANDER on May 25, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RN0300X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Nephrology

The NPI profile was last updated on Sep 11, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for RICHARD ALEXANDER below.

NPI Profile for
RICHARD D. ALEXANDER

NPI Number
1831145580
Enumeration Date

(more than 20 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
RICHARD D. ALEXANDER
Credentials
MD
Primary location
331 HIGHLAND AVE
SALEM, MA 01970
Phone: (978) 745-1200 Fax: (978) 542-0351
Mailing address
PO BOX 930
SALEM, MA 01970
Phone: (978) 825-7116 Fax: (978) 825-7070
Updated
Identifiers

Identifiers for RICHARD ALEXANDER

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
medicaidMA6169198
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RN0300X
- Internal Medicine / Nephrology (Primary)
MA 37200
207R00000X
- Internal Medicine
MA 37200

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.