Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen J Oehlers, M.D.

Internal Medicine Physician in Springfield, OH · enumerated 2005.

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

National Provider Identifier

1609866490

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen J Oehlers

Credential M.D.

Sex Male

Practice address 2105 East High Street, Springfield, OH, 45505

Phone (937) 324-8200

Fax (937) 324-8230

Enumeration date Oct 24, 2005

Last updated in NPPES Jan 4, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35084467 (OH) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 35-084467 (OH) Secondary

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
2490040	Medicaid	OH	-
H091180	Other	OH	MEDICARE

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 Stephen Oehlers's NPI record?

Cross-check NPI 1609866490 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609866490 active?

Yes, as of the latest NPPES snapshot, NPI 1609866490 is active (record last updated 2012-01-04).

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Marvin Narcelles Internal Medicine Physician · Springfield, OH NPI 1871583666

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-04.