Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Robert S Greaves, CRNA

Certified Registered Nurse Anesthetist in Natrona Heights, PA · enumerated 2006.

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

National Provider Identifier

1174502819

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Registry record

Entity type Individual (Type 1)

Name Mr. Robert S Greaves

Credential CRNA

Sex Male

Practice address 1301 Carlisle St, Natrona Heights, PA, 15065

Phone (724) 226-7010

Fax (724) 226-7404

Enumeration date Jan 11, 2006

Last updated in NPPES Oct 21, 2020

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License RN323411L (PA) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
0019680830002	Medicaid	PA	-

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

Where does Robert Greaves practice?

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

What is the NPI number for Robert Greaves?

The National Provider Identifier (NPI) for Robert Greaves is 1174502819, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Youssef Arshoun Radiation Oncology Physician · Natrona Heights, PA NPI 1780683805 Vicenta Gaspar-Yoo Physical Medicine & Rehabilitation Physician · Natrona Heights, PA NPI 1013918762 Gene Finley Hematology & Oncology Physician · Natrona Heights, PA NPI 1730171968 Tessa Chopra Emergency Medicine Physician · Natrona Heights, PA NPI 1134112741 Christian Wagner Certified Registered Nurse Anesthetist · Natrona Heights, PA NPI 1326018235 Pennsylvania Anesathesia Providers Inc Anesthesiology Physician · Natrona Heights, PA NPI 1952375461 Frederick Weniger Anesthesiology Physician · Natrona Heights, PA NPI 1891769220 Dmitriy Mnuskin Anesthesiology Physician · Natrona Heights, PA NPI 1871567255

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-21.