Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald J Oconer, D.O.

Anesthesiology Physician in Harvard, IL · enumerated 2007.

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

National Provider Identifier

1649473729

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Registry record

Entity type Individual (Type 1)

Name Ronald J Oconer

Credential D.O.

Sex Male

Practice address 901 Grant St, Harvard, IL, 60033

Phone (815) 943-8094

Fax (815) 943-8645

Enumeration date Jun 7, 2007

Last updated in NPPES May 6, 2026

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 53011-21 (WI) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License OS013538 (PA) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 036.122284 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
30042806	Other	PA	KEYSTONE MERCY
30563	Other	PA	HEALTH PARTNERS - FF
30042806	Other	PA	KEYSTONE IBC
1019305800003	Medicaid	PA	-
2855609000	Other	PA	PERSONAL CHOICE
1019305800001	Medicaid	PA	-
1019305800002	Medicaid	PA	-
30567	Other	PA	HEALTH PARTNERS - FB
01697	Other	PA	HEALTH PARTNERS TC
1970005	Other	PA	HIGHMARK BLUE SHIELD

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

Where does Ronald Oconer practice?

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

What is the NPI number for Ronald Oconer?

The National Provider Identifier (NPI) for Ronald Oconer is 1649473729, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-06.