Robert Gm Johnston, MD
Psychiatry Physician · Providence, RI
Robert Gm Johnston, MD is a psychiatry physician with a practice address in Providence, Rhode Island, and NPI 1477565901, issued on Aug 13, 2006. Check the license (Rhode Island 5548, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert Gm Johnston
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 5548 RI
37671 MA
Self-reported in NPPES; status is on the state search - Practice location
- 830 Chalkstone Ave, Providence, RI 02908
- Phone
- (401) 273-7100
- Enumerated
- Aug 13, 2006
- Record last updated
- Apr 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 383 in Rhode Island → Look up another NPI →
Also registered at 830 Chalkstone Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Robert Gm Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license 5548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert Gm Johnston among 383 psychiatry physician records in Rhode Island
Robert Gm Johnston, MD is one of 383 psychiatry physician records with a practice address in Rhode Island. 68% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 64% newer
- In a Medicare fileNo · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2014 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
270 psychiatry physician records list a practice address in Providence
They are 270 of the 9,647 NPPES records with a practice address in Providence, and 383 psychiatry physician records in Rhode Island. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 383 in Rhode Island → Every provider in Providence → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Giselle Corre, M.D.Providence, RI 029081366485104
- Amy Halt, MDProvidence, RI 029081770713596
- Carolina Jimenez Madiedo, MDProvidence, RI 029081518117100
- Laura Levine, MDProvidence, RI 029081548274038
- Jerome Liu, MDProvidence, RI 029081194086702
- Cynthia Loncar, PHDProvidence, RI 029081700819273
- Timothy Mariano, M.D., PH.D.Providence, RI 029081366737280
- Aaron Phillips, DOProvidence, RI 029081699404202
Common questions
What is Robert Gm Johnston, MD's NPI number?
Robert Gm Johnston, MD's National Provider Identifier (NPI) is 1477565901, issued on Aug 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Gm Johnston, MD located?
The NPPES record lists a practice address at 830 Chalkstone Ave, Providence, RI, 02908. Phone: (401) 273-7100. Providers update this record themselves, so call before visiting.
How can I verify Robert Gm Johnston, MD's license?
NPPES lists Rhode Island license number 5548, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. 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.