Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Richard Hudson Koehler, M.D.

Surgery Physician in Oak Bluffs, MA · enumerated 2006.

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

National Provider Identifier

1831146414

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Registry record

Entity type Individual (Type 1)

Name Richard Hudson Koehler

Credential M.D.

Sex Male

Practice address 1 Hospital Rd, Oak Bluffs, MA, 02557

Phone (508) 693-9012

Fax (508) 696-6150

Enumeration date May 28, 2006

Last updated in NPPES Feb 10, 2020

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 71522 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Richard Hudson Koehler?

The National Provider Identifier (NPI) for Richard Hudson Koehler is 1831146414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Richard Hudson Koehler practice?

The practice location on file with NPPES is in Oak Bluffs, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-10.