DR. AMY LYNN MARKS M.D.
NPI 1548302227
Anesthesiology in Towson, MD
About Dr. Amy Lynn Marks M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AMY LYNN MARKS M.D. (NPI 1548302227) is an individual anesthesiology provider in Towson, Maryland, licensed in Maryland (D0065788) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Amy Lynn Marks M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Amy Marks reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbia, MD 21046
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 717 clinicians in this Medicare group
Prince Frederick, MD 20678
- Reassigned Medicare billing, Maryland enrollment
- 468 clinicians in this Medicare group
Melville, NY 11747
- Reassigned Medicare billing, Pennsylvania enrollment
- 928 clinicians in this Medicare group
Westland, MI 48186
- Reassigned Medicare billing, Michigan enrollment
- 273 clinicians in this Medicare group
Livonia, MI 48154
- Reassigned Medicare billing, Michigan enrollment
- 97 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joe Mercy Hospital System Livonia
Acute Care Hospitals · Livonia, MITrinity Health Ann Arbor Hospital
Acute Care Hospitals · Ann Arbor, MIPenn State Health Lancaster Medical Center
Acute Care Hospitals · Lancaster, PAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TOWSON, MD 21204
TOWSON, MD 21204
TOWSON, MD 21204
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Amy Marks's NPI number?
The NPI number for Amy Marks is 1548302227. It was assigned to this individual provider in the NPPES registry on February 12, 2007.
Where is Amy Marks located?
Amy Marks practices at 6701 N Charles St Ste 4226, Towson, MD 21204. The listed phone number is (410) 296-4616.
What is Amy Marks's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Amy Marks enrolled in Medicare?
Yes. Amy Marks is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Amy Marks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Marks reassigns Medicare benefits to 5 organizations: First Colonies Anesthesia Associates, LLC (Columbia, MD), North American Partners In Anesthesia Maryland LLC (Prince Frederick, MD), North American Partners In Anesthesia, Pennsylvania , LLC (Melville, NY), Anesthesia Associates Of Ann Arbor, PLLC (Westland, MI) and St Mary Mercy Hospital Crna (Livonia, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Amy Marks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Amy Marks affiliated with any hospitals?
According to CMS data, Amy Marks is affiliated with St Joe Mercy Hospital System Livonia, Trinity Health Ann Arbor Hospital and Penn State Health Lancaster Medical Center.
When was this NPI record last updated?
The NPPES record for Amy Marks was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Amy Lynn Marks, M.D. · NPI 1548302227
Anesthesiology physician in Towson, Maryland. Individual provider, active in the CMS NPPES registry since February 12, 2007.
## Identity
- **NPI:** 1548302227 (Entity type: Individual)
- **Enumerated:** February 12, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** D0065788 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 6701 N CHARLES ST STE 4226, Towson, MD 21204-6808
- **Phone:** (410) 296-4616 · **Fax:** (410) 337-5068
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): First Colonies Anesthesia Associates, LLC (NPI 1740218767, Columbia, MD); North American Partners In Anesthesia Maryland LLC (NPI 1093707879, Prince Frederick, MD); North American Partners In Anesthesia, Pennsylvania , LLC (NPI 1639137854, Melville, NY); Anesthesia Associates Of Ann Arbor, PLLC (NPI 1669581997, Westland, MI); St Mary Mercy Hospital Crna (NPI 1063602092, Livonia, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Georgia School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** December 15, 2025
- **Other identifiers:** Medicaid 412901600 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1548302227) · Data from the CMS NPPES public registry.