Medicare and Medicaid

District of Columbia Medicaid (DHCF / Gainwell)

Phone, published email, fax, addresses and the next step for your office.

5 contact routesNo directory research calls placed

provider services

Gainwell Contact Center (portal registration and training)

Official page read

Phone866-752-9233Published hours

Mon-Fri 8-5 ET

Product, plan and location

medicaid
District of Columbia

Mailing address

Not researched for this route

Gainwell became DC fiscal agent 2026-03-02. Page only describes this line for portal registration and training questions.

View source ↗ · Source checked 2026-10-20

Report an update

Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

provider services

DHCF main office line

Official page read

Phone202-442-5988Fax

202-442-4790

Published email

dhcf@dc.gov

Published hours

Mon-Fri 8:15-4:45

Product, plan and location

medicaid
District of Columbia

Mailing address

Not researched for this route

General agency line and fax, not a provider services desk.

View source ↗ · Source checked 2026-10-20

Report an update

Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

provider services

DC Medicaid Gainwell Provider Inquiry — local number

Official page read

Phone202-906-8319Published email

dcproviderinquiry@gainwelltechnologies.com

Gainwell DC Medicaid Provider Inquiry; separate from the EDI/web portal mailbox.

Published hours

Not published in this record

Product, plan and location

medicaid
District of Columbia

Mailing address

Gainwell Technologies PO Box 33458 Washington, DC 20033

Provider Inquiry correspondence; separate from claims submission PO Box 33428 and attachment/adjustment boxes.

Current Gainwell portal contact table labels these contacts Provider Inquiry. This is not the Comagine utilization-management desk. The current page lists local and toll-free numbers together without imposing a caller-location restriction.

View source ↗ · Source checked 2026-10-22 · Current Comagine page separates its own contact from a D.C. Medicaid Provider Inquiry section; the latter retains an older toll-free number ↗ · Current DC portal demonstrates Gainwell operation and ongoing Comagine authorization workflows in October 2026 ↗

Report an update

Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

provider services

DC Medicaid Gainwell Provider Inquiry — toll-free number

Official page read

Phone866-752-9233Published email

dcproviderinquiry@gainwelltechnologies.com

Gainwell DC Medicaid Provider Inquiry; separate from the EDI/web portal mailbox.

Published hours

Not published in this record

Product, plan and location

medicaid
District of Columbia

Mailing address

Gainwell Technologies PO Box 33458 Washington, DC 20033

Provider Inquiry correspondence; separate from claims submission PO Box 33428 and attachment/adjustment boxes.

Report an update

Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

prior authorization

DC Medicaid utilization-management program contact — Comagine Health

Official page read

Phone800-251-8890Published hours

Monday–Friday, 8 a.m.–5 p.m. ET; closed on the holidays listed on the program contact page.

Product, plan and location

medicaid
District of Columbia

Mailing address

Not researched for this route

Program contact for DC Medicaid utilization management. The state portal continues to direct specified prior-authorization workflows to the Comagine Health Provider Portal. Confirm the service-specific submission method; this contact is not the Gainwell claims inquiry desk.

View source ↗ · Source checked 2026-10-22 · State fiscal-agent portal confirms current Comagine authorization responsibilities ↗

Report an update

Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

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District of Columbia Medicaid (DHCF / Gainwell)

Gainwell Contact Center (portal registration and training)

DHCF main office line

DC Medicaid Gainwell Provider Inquiry — local number

DC Medicaid Gainwell Provider Inquiry — toll-free number

DC Medicaid utilization-management program contact — Comagine Health

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District of Columbia Medicaid (DHCF / Gainwell)

How did your call go?

Share a call experience

Suggest a correction

Found the contact. Still need to make the call?

Put payer follow-upon your office’s worklist.

See how it could work for your practice

Put payer follow-up
on your office’s worklist.