Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ronald H Witkin, MD

Internal Medicine Physician in Laconia, NH · enumerated 2006.

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

National Provider Identifier

1447206198

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Registry record

Entity type Individual (Type 1)

Name Ronald H Witkin

Credential MD

Sex Male

Practice address Laconia, NH, 03246

Phone (603) 524-9201

Fax (603) 524-4338

Enumeration date May 25, 2006

Last updated in NPPES Jun 20, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5697 (NH) 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
B85843	Other	-	HARVARD PILGRIM HEALTH CA
0100132YPNH02	Other	-	ANTHEM
81110132	Medicaid	NH	-

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 Ronald Witkin?

The National Provider Identifier (NPI) for Ronald Witkin is 1447206198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ronald Witkin practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-20.