US · guidance
CMS Pub. 100-09, ch. 6, § 30.7.4.3
Electronic Responses to Provider Written Inquiries
MACs may receive and respond to provider written inquiries by email, fax, MAC secure internet portal
or through other approved electronic mechanisms within 45 business days of receipt.
When sending electronic responses containing protected or sensitive information, MACs shall comply
with CMS Acceptable Risk Safeguard controls and other CMS directives for secure communications.
When responding via fax, MACs shall first verify the fax number with the intended provider recipient. MACs may
pre-program frequently used fax numbers directly in their fax machines to avoid misdirected information.
All electronic responses shall meet the same timeliness and quality guidelines that apply to all written
responses and electronic content, including attachments, must be section 508 compliant.
History
(Rev. 13683; Issued: 04-08-26; Effective: 05-08-26; Implementation: 05-08-26)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
d69ff686a7dbe5740789edb7fa7650de4ad713e3f00f71cf07e82dde45b34c03
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