Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Premier Radiation Oncology Services, P.L.C.

Radiation Oncology Physician in Royal Oak, MI · enumerated 2006 · authorized official Larry Kestin, President.

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

National Provider Identifier

1477654028

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Registry record

Entity type Organization (Type 2)

Legal business name Premier Radiation Oncology Services, P.L.C.

Other name <Unavail>

Practice address 3601 W 13 Mile Rd, Radiation Oncology Department, Royal Oak, MI, 48073

Phone (248) 551-7020

Fax (248) 551-0089

Enumeration date Sep 26, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Larry Kestin

Title President

Phone (248) 551-2080

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Premier Radiation Oncology Services, P.L.C.?

Premier Radiation Oncology Services, P.L.C. is registered in NPPES as a Radiation Oncology Physician (its primary provider taxonomy).

Providers at this address

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Cheryl Grain Nurse Practitioner · Royal Oak, MI NPI 1437155538 Thomas Schwann Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Royal Oak, MI NPI 1134125727 Costa Andreou Cardiovascular Disease Physician · Royal Oak, MI NPI 1114925419 Naushaba Mohiuddin Nephrology Physician · Royal Oak, MI NPI 1699773879 Melissa Marback Obstetrics & Gynecology Physician · Royal Oak, MI NPI 1083606586 Douglas Horstmanshof Cardiovascular Disease Physician · Royal Oak, MI NPI 1881688760 Patrick Pettengill Emergency Medicine Physician · Royal Oak, MI NPI 1639163488 Yvonne Posey Chemical Pathology Physician · Royal Oak, MI NPI 1467447151

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.