Ross L. Warren, DO
Emergency Medicine Physician · Coldwater, OH
Ross L. Warren, DO is an emergency medicine physician with a practice address in Coldwater, Ohio, and NPI 1598773350, issued on Aug 4, 2006. Check the license (Ohio OH34003941, as entered in NPPES) on the State Medical Board of Ohio; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ross L. Warren
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OH34003941 OH
Self-reported in NPPES; status is on the state search - Practice location
- 800 W Main St, Coldwater, OH 45828
- Phone
- (419) 678-5101
- Enumerated
- Aug 4, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 0633827 OH
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,002 in Ohio → Look up another NPI →
Also registered at 800 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Taylor Bendele, MOT, OTR/LOccupational Therapist1871127647
- Jennifer Bills, CPNPPediatric Nurse Practitioner1831478981
- Amy BruggemanPhysical Therapist1043670557
Verify Ross L. Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license OH34003941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ross L. Warren among 3,002 emergency medicine physician records in Ohio
Ross L. Warren, DO is one of 3,002 emergency medicine physician records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 63% newer
- In a Medicare fileNo · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 emergency medicine physician records list a practice address in Coldwater
They are 3 of the 101 NPPES records with a practice address in Coldwater, and 3,002 emergency medicine physician records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,002 in Ohio → Every provider in Coldwater → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Carla Cameron, DOColdwater, OH 458281629041454
- Paul Langenkamp, M.D.Coldwater, OH 458281306931852
- Gregory White, DOCelina, OH 458221275604613
- Greg Arnette, MDBluffton, OH 458171801861794
- Murray Sullivan, MDBluffton, OH 458171588671895
- Thomas Tropf, MDBluffton, OH 458171033186275
- Taimur Butt, MDFindlay, OH 458401588642342
- Marla Frederick, D.O.Findlay, OH 458401851534341
Common questions
What is Ross L. Warren, DO's NPI number?
Ross L. Warren, DO's National Provider Identifier (NPI) is 1598773350, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ross L. Warren, DO located?
The NPPES record lists a practice address at 800 W Main St, Coldwater, OH, 45828. Phone: (419) 678-5101. Providers update this record themselves, so call before visiting.
How can I verify Ross L. Warren, DO's license?
NPPES lists Ohio license number OH34003941, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.