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David I Krohn, M.D.

Internal Medicine Physician in Wellesley, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689643298

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Registry record

Entity type Individual (Type 1)
Name David I Krohn
Credential M.D.
Sex Male
Practice address 230 Worcester St, Internal Medicine, Wellesley, MA, 02481
Phone (781) 431-5205
Fax (781) 431-5465
Enumeration date Mar 16, 2006
Last updated in NPPES Jun 27, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 41934 (MA) Primary
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
PV995 Other MA HARVARD PILGRIM
714566 Other MA TUFTS
2072726 Medicaid MA -
B51045 Other MA BLUE CROSS

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.

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Frequently asked questions

How do I verify David Krohn's NPI record?
Cross-check NPI 1689643298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1689643298 active?
Yes, as of the latest NPPES snapshot, NPI 1689643298 is active (record last updated 2011-06-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-27.