NPI Portal NPI Lookup & Verification

Dr. Malcolm L Karlinsky, MD

Dr. Malcolm L Karlinsky is a Nephrology Physician provider (Internal Medicine) practicing in Berkeley, CA, registered in the NPPES registry with NPI 1609973353 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1609973353
Entity type Individual (Type 1)
Name Dr. Malcolm L Karlinsky
Credential MD
Sex Male
Practice address 2905 TELEGRAPH AVE, Berkeley, CA, 94705
Phone 5108410411
Fax 5108455030
Enumeration date 2006-09-17
Last updated in NPPES 2007-07-09

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207RN0300X Nephrology Physician Primary G39011 CA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00G390110 Medicaid CA
Copy-ready billing details
Provider: Malcolm Karlinsky, MD
NPI: 1609973353
Taxonomy: 207RN0300X (Nephrology Physician)
Address: 2905 TELEGRAPH AVE, Berkeley, CA, 94705

Other providers at this practice address

NPI Name Type Specialty Location
1871699074 East Bay Nephrology Medical Group, Inc. Organization Nephrology Physician Berkeley, CA
1205933934 Donald Block Individual Nephrology Physician Berkeley, CA
1902903578 Monte Wu Individual Nephrology Physician Berkeley, CA
1548367113 Claudia Iota-Herbei Individual Nephrology Physician Berkeley, CA
1184721821 Robert Doud Individual Nephrology Physician Berkeley, CA
1669579348 Terina Miller Individual Nephrology Physician Berkeley, CA
1003913781 Ellen Morrissey Individual Nephrology Physician Berkeley, CA
1437256120 Swati Patel Individual Nephrology Physician Berkeley, CA

Verify this record

Cross-check NPI 1609973353 against the authoritative CMS record: view Dr. Malcolm L Karlinsky on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Malcolm Karlinsky?
Malcolm Karlinsky is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-09.