For non-competing continuation awards, use My NCBI to report papers. Everywhere else you wish to cite papers that you author or which are subject to the public access policy, include PMCID at the end of citations
To locate / track PMCID
NIH Public Access Policy requires that anyone submitting an application, proposal or report to NIH must include the PubMed Central reference number (PMCID) when citing applicable papers that they author or that arise from their NIH-funded research. Please do not confuse PMCID with PMID. PMCID is a unique reference number or identifier that is assigned to every full-text article that is accepted into PubMed Central (PMC). PMID is a unique identifier assigned to each citation as it is added to PubMed. It is distinctly different from PMCID and is used only for PubMed records. See the article attached below for more information on the differences between PMCID and PMID.
PMCID vs. PMID (http://www.libraries.rutgers.edu/sites/default/files/researchers/PMCID_vs_PMID.pdf)