Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sheridan R Oldham, MD

Surgery Physician in Waterville, ME · enumerated 2006.

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

National Provider Identifier

1609840156

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Registry record

Entity type Individual (Type 1)

Name Sheridan R Oldham

Credential MD

Sex Female

Practice address 325d Kennedy Memorial Dr, Waterville, ME, 04901

Phone (207) 873-4055

Fax (207) 873-5243

Enumeration date Feb 13, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 10689 (ME) 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 Sheridan Oldham?

The National Provider Identifier (NPI) for Sheridan Oldham is 1609840156, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sheridan Oldham practice?

The practice location on file with NPPES is in Waterville, ME. 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 2007-07-08.