NPPES file of Aug 9, 2026

Robert Marker

Hospitalist Physician · Columbus, OH

Robert Marker is a hospitalist physician with a practice address in Columbus, Ohio, and NPI 1477202174, issued on Mar 21, 2022. Check the license (Ohio 34.018363, as entered in NPPES) on the State Medical Board of Ohio; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477202174
Name
Robert Marker
Primary taxonomy
Hospitalist Physician 208M00000X
License number
34.018363 OH
Self-reported in NPPES; status is on the state search
Practice location
111 S Grant Ave, Columbus, OH 43215
Phone
(614) 566-8883
Enumerated
Mar 21, 2022
Record last updated
May 14, 2026
Fax
(614) 566-8149
Medicare enrollment
Enrolled (PECOS I20260417000108); may accept Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest hospitalist physician records → All 982 in Ohio → Look up another NPI →

Also registered at 111 S Grant Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Matthew AdegboyeInternal Medicine Physician1881071827
  2. Patricia AidooPsychiatric/Mental Health Nurse Practitioner1215811591
  3. Bryan Alexander, M.D.Hospitalist Physician1588824387
  4. Rebecca Alexander, MDInternal Medicine Physician1659546786
  5. Jacinda Allen, M.D.Hospitalist Physician1144292418
  6. Wael AlnajjarFamily Medicine Physician1669890489

Verify Robert Marker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 34.018363    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Robert Marker among 982 hospitalist physician records in Ohio

Robert Marker is one of 982 hospitalist physician records with a practice address in Ohio. 92% 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 2022, is newer than 91% of them.

  • NPI issued2022 · 91% of these records are older, 4% newer
  • In a Medicare fileNo · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 85% of these records are
  • Graduated2022 · median 2012 among the 835 with a school on file
  • Record last updated2026 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Ohio

There are 982 hospitalist physician records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 982 in Ohio → Every provider in Columbus → Hospitalist Physician nationwide →

The 8 hospitalist physician records with the nearest ZIP codes

  1. Bryan Alexander, M.D.Columbus, OH 432151588824387
  2. Jacinda Allen, M.D.Columbus, OH 432151144292418
  3. Vineet Bhasker, M.D.Columbus, OH 432151942594502
  4. Dhruti Cramer, MDColumbus, OH 432151346411766
  5. Jeremy Daugherty, M.D,Columbus, OH 432151548481799
  6. James Flaherty, DOColumbus, OH 432151972731610
  7. James Foster, MDColumbus, OH 432151770700320
  8. Andreea Herbei, MDColumbus, OH 432151215106950

Common questions

What is Robert Marker's NPI number?

Robert Marker's National Provider Identifier (NPI) is 1477202174, issued on Mar 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Robert Marker located?

The NPPES record lists a practice address at 111 S Grant Ave, Columbus, OH, 43215. Phone: (614) 566-8883. Providers update this record themselves, so call before visiting.

How can I verify Robert Marker's license?

NPPES lists Ohio license number 34.018363, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.