Marc Allen, MD
Emergency Medicine Physician · Willoughby, OH
Marc Allen, MD is an emergency medicine physician with a practice address in Willoughby, Ohio, and NPI 1407817380, issued on Mar 30, 2006. Check the license (Ohio 34003337B, 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
- Marc Allen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 34003337B OH
Self-reported in NPPES; status is on the state search - Practice location
- 36000 Euclid Ave, Willoughby, OH 44094
- Phone
- (440) 953-6203
- Enumerated
- Mar 30, 2006
- Entity
- Type 1 · individual
Also registered at 36000 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vijay Adusumilli, MDEmergency Medicine Physician1487615647
- Schickri Aina, PAPhysician Assistant1215998109
- Tammy Allen, RNCritical Care Medicine Registered Nurse1629225578
- Gregory Armstrong, PACPhysician Assistant1275594129
- Marwa Azem, PHARM.D.Pharmacist1881202026
- Yuriy Babayev, M.D.Diagnostic Radiology Physician1841429727
Verify Marc Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34003337BCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
12 emergency medicine physician records list a Willoughby practice address
They are 12 of the 1,110 NPPES records with a Willoughby practice address, and 2,663 emergency medicine physician records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12 in Willoughby → All 2,663 in Ohio → Every provider in Willoughby →
Other emergency medicine physician records in Ohio
- Alexandra Abangan, MDSpringfield, OH1508121641
- Brian Abbott, MDColumbus, OH1841591757
- Abdalla Abdalla, MDLima, OH1952046682
- Ali Abdallah, DOCanton, OH1134749997
- Anthony Abdullah, M.D.Hamilton, OH1457319386
- Mikhael Abourjeily, D.O.Mentor, OH1982689758
- Michael Abrahams, M.D.Logan, OH1487098463
- Arun Acharekar, MDMansfield, OH1659411544
- Kevin Ackley, MDCincinnati, OH1952340903
- Kirstin Acus, MDColumbus, OH1548823669
Common questions
What is Marc Allen, MD's NPI number?
Marc Allen, MD's National Provider Identifier (NPI) is 1407817380, issued on Mar 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Allen, MD located?
The NPPES record lists a practice address at 36000 Euclid Ave, Willoughby, OH, 44094. Phone: (440) 953-6203. Providers update this record themselves, so call before visiting.
How can I verify Marc Allen, MD's license?
NPPES lists Ohio license number 34003337B, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.