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Peter Knowlton, M.D.

Ophthalmology Physician in Charleston, SC · enumerated 2013.

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

National Provider Identifier

1740523604

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Registry record

Entity type Individual (Type 1)
Name Peter Knowlton
Credential M.D.
Sex Male
Practice address 1637 Savannah Hwy, Charleston, SC, 29407
Phone (843) 884-2015
Fax (843) 856-9944
Enumeration date Mar 29, 2013
Last updated in NPPES Mar 7, 2022

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 51384 (SC) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Peter Knowlton's NPI record?
Cross-check NPI 1740523604 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1740523604 active?
Yes, as of the latest NPPES snapshot, NPI 1740523604 is active (record last updated 2022-03-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-07.