John Cho, MD
Diagnostic Radiology Physician · Gaithersburg, MD
John Cho, MD is a diagnostic radiology physician with a practice address in Gaithersburg, Maryland, and NPI 1114245990, issued on May 4, 2010. Check the license (Maryland D83358, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- John Cho
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- D83358 MD
MD70016363 WA
27788 NV
Self-reported in NPPES; status is on the state search - Practice location
- 820 W Diamond Ave Ste 600, Gaithersburg, MD 20878
- Phone
- (301) 315-3030
- Enumerated
- May 4, 2010
- Record last updated
- Aug 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20170602000588); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 877 in Maryland → Look up another NPI →
Also registered at 820 W Diamond Ave Ste 600
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bonnie Arze, MDFamily Medicine Physician1245885672
- Lucy Song, NP-CFamily Nurse Practitioner1811395536
Verify John Cho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D83358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 13 group practices
- Appalachian Mountains Medical LLCWelch, WV
- Baptist Health Medical Group IncCorbin, KY
- Blackwell Physicians, LLCSilver Spring, MD
- Boone Physician Services LLCColumbia, MO
- Cambria Somerset Radiology And Nuclear Medicine Group IncPotomac, MD
- Community Care Services LLCReno, NV
- Medical Imaging Northwest - Good Samaritan Hospital Imaging AlliancePotomac, MD
- Munson Medical GroupGrayling, MI
- Radiology One Medical Group PCPotomac, MD
- Smi Imaging LLCPotomac, MD
- Southwest Diagnostic Imaging LLCPotomac, MD
- Tra-Minw P SPotomac, MD
- University OF Louisville Physicians IncLouisville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Cho among 877 diagnostic radiology physician records in Maryland
John Cho, MD is one of 877 diagnostic radiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.
- NPI issued2010 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2010 · median 2003 among the 604 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Maryland
There are 877 diagnostic radiology physician records in Maryland.
All 877 in Maryland → Every provider in Gaithersburg → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Sudhir Arora, M.D.Gaithersburg, MD 208791013979582
- Timothy Chen, M.D.Gaithersburg, MD 208791578893947
- Susan JagtGaithersburg, MD 208791659902963
- Walter Basen, M.D.Germantown, MD 208761437120102
- Renu Berry, M.D.Germantown, MD 208761356312201
- Alan Bobb, M.D.Germantown, MD 208761669443321
- Bruce Bortnick, M.D.Germantown, MD 208761740251271
- Jonathan Bowles, M.D.Germantown, MD 208761083685853
Common questions
What is John Cho, MD's NPI number?
John Cho, MD's National Provider Identifier (NPI) is 1114245990, issued on May 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Cho, MD located?
The NPPES record lists a practice address at 820 W Diamond Ave Ste 600, Gaithersburg, MD, 20878. Phone: (301) 315-3030. Providers update this record themselves, so call before visiting.
How can I verify John Cho, MD's license?
NPPES lists Maryland license number D83358, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. 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.