NPPES file of Aug 9, 2026

Robert Marcus Baldwin, MD

Allergy & Immunology Physician · Hilliard, OH

Robert Marcus Baldwin, MD is an allergy & immunology physician with a practice address in Hilliard, Ohio, and NPI 1316038516, issued on Sep 27, 2006. Check the license (Ohio 350292000, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1316038516
Name
Robert Marcus Baldwin
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
350292000 OH
Self-reported in NPPES; status is on the state search
Practice location
5123 Norwich St, Hilliard, OH 43026
Phone
(614) 876-0612
Enumerated
Sep 27, 2006
Record last updated
Feb 4, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(614) 876-0716
Medicaid ID
0185222 OH
Medicare enrollment
Enrolled (PECOS I20100916000046); accepts Medicare assignment
Medical or professional school
Ohio State University College Of Medicine, 1966
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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Also registered at 5123 Norwich St

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

  1. Amy Armstrong, LSWMental Health Counselor1447679022
  2. Robert Bennett, PHD, LISWClinical Social Worker1578954947
  3. Heather Gebhart, O.D.Optometrist1881655306
  4. Irene O'NeillMental Health Counselor1154031599

Verify Robert Marcus Baldwin 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 350292000
    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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Bills Medicare through one group practice

  1. Premier Allergy And Asthma IncColumbus, OH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert Marcus Baldwin among 132 allergy & immunology physician records in Ohio

Robert Marcus Baldwin, MD is one of 132 allergy & immunology physician records with a practice address in Ohio. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 47% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1966 · median 2006 among the 93 with a school on file
  • Record last updated2010 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Ohio

There are 132 allergy & immunology physician records in Ohio.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Gregory Bennett, DOHilliard, OH 430261376819524
  2. Thomas Kiefer, MDDublin, OH 430171144220690
  3. Sridhar Guduri, M.DDublin, OH 430161669436192
  4. David Hauswirth, MDDublin, OH 430161588653646
  5. Hiresadarahalli Nataraj, MDDublin, OH 430161003993098
  6. Gital Patel, MDDublin, OH 430161174714984
  7. Summit Shah, M.D.Dublin, OH 430161871702613
  8. Suresh Sharoff, M.D.Dublin, OH 430161801859939

Common questions

What is Robert Marcus Baldwin, MD's NPI number?

Robert Marcus Baldwin, MD's National Provider Identifier (NPI) is 1316038516, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Marcus Baldwin, MD located?

The NPPES record lists a practice address at 5123 Norwich St, Hilliard, OH, 43026. Phone: (614) 876-0612. Providers update this record themselves, so call before visiting.

How can I verify Robert Marcus Baldwin, MD's license?

NPPES lists Ohio license number 350292000, 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. Medicare files from data.cms.gov. 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.