MRS. TRACY L MARKWELL C.N.P.
NPI 1871827188
Nurse Practitioner in Boston, MA
About Mrs. Tracy L Markwell C.n.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. TRACY L MARKWELL C.N.P. (NPI 1871827188) is an individual nurse practitioner in Boston, Massachusetts, licensed in Massachusetts (233552) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Mrs. Tracy L Markwell C.n.p. 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
2Medicare enrollment records show Tracy Markwell reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Tracy Markwell's NPI number?
The NPI number for Tracy Markwell is 1871827188. It was assigned to this individual provider in the NPPES registry on September 21, 2009.
Where is Tracy Markwell located?
Tracy Markwell practices at 50 Staniford St Suite 300, Boston, MA 02114. The listed phone number is (617) 726-3558.
What is Tracy Markwell's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Tracy Markwell enrolled in Medicare?
Yes. Tracy Markwell 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 Tracy Markwell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tracy Markwell reassigns Medicare benefits to 2 organizations: The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). 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 Tracy Markwell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tracy Markwell accept?
Health plans from Taro Health list Tracy Markwell as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Tracy Markwell was last updated on March 6, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.
# Mrs. Tracy L Markwell, C.N.P. · NPI 1871827188
Nurse Practitioner physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since September 21, 2009.
## Identity
- **NPI:** 1871827188 (Entity type: Individual)
- **Enumerated:** September 21, 2009
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 233552 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 50 STANIFORD ST, SUITE 300, Boston, MA 02114-2517
- **Phone:** (617) 726-3558 · **Fax:** (617) 724-8067
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** March 6, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1871827188) · Data from the CMS NPPES public registry.