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Dr. Nancy S. Mark, a chiropractor based in Riverhead, NY, practices with Hallmark Chiropractic.

Her professional training was at Life Chiropractic College (1993).

You'll find Dr. Mark at 633 Roanoke Ave, Riverhead, NY 11901. Call (631) 335-0911 to schedule. She accepts Medicare assignment — useful to know if you are on traditional Medicare.

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Practice details

Specialty
Chiropractor
Credentials
DC
Practice
Hallmark Chiropractic
Address
633 Roanoke Ave, Riverhead, NY 11901
Phone
(631) 335-0911
Education
Life Chiropractic College (1993)
Medicare assignment
Accepts
NPI number
1225398860
NY license no.
X007378-1

Medicare, Medicaid and hospitals

Medicare patients (2024)
54 people with traditional Medicare, average age 73
Most common services billed to Medicare
  • Chiropractic manipulative treatment, 1-2 spinal regions

Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.

Comparing chiropractors? See 10 in Riverhead or 89 across Long Island.

Other chiropractors in Riverhead

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Frequently Asked Questions

With Hallmark Chiropractic, at 633 Roanoke Ave, Riverhead, NY 11901.

Call the office at (631) 335-0911.

Yes — Dr. Mark accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.

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