KAREN DAVIDSON MD
NPI 1154374890
Obstetrics & Gynecology - Maternal & Fetal Medicine in Boston, MA
About Karen Davidson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN DAVIDSON MD (NPI 1154374890) is an individual maternal & fetal medicine provider in Boston, Massachusetts, licensed in Massachusetts (77990) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and maintains a secondary practice location in Portsmouth.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
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
Karen Davidson Md 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 Karen Davidson reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 451 clinicians in this Medicare group
Exeter, NH 03833
- Reassigned Medicare billing, New Hampshire enrollment
- 395 clinicians in this Medicare group
Exeter, NH 03833
- Reassigned Medicare billing, New Hampshire enrollment
- 5 clinicians in this Medicare group
Dover, NH 03820
- Reassigned Medicare billing, New Hampshire enrollment
- 559 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 02115
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Karen Davidson's NPI number?
The NPI number for Karen Davidson is 1154374890. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is Karen Davidson located?
Karen Davidson practices at 75 Francis St, Boston, MA 02115. The listed phone number is (857) 307-0896.
What is Karen Davidson's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Karen Davidson enrolled in Medicare?
Yes. Karen Davidson 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 Karen Davidson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Davidson reassigns Medicare benefits to 5 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA), Emerson Practice Associates, Inc. (Concord, MA), Core Physicians, LLC (Exeter, NH), Exeter Hospital Inc (Exeter, NH) and Wentworth Douglass Physician Corporation (Dover, NH). 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 Karen Davidson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Davidson accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Karen Davidson 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.
Is Karen Davidson affiliated with any hospitals?
According to CMS data, Karen Davidson is affiliated with Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Karen Davidson was last updated on March 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Karen Davidson, MD · NPI 1154374890
Maternal & Fetal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 17, 2006.
## Identity
- **NPI:** 1154374890 (Entity type: Individual)
- **Enumerated:** May 17, 2006
- **Primary specialty:** Obstetrics & Gynecology - Maternal & Fetal Medicine · taxonomy 207VM0101X
- **State license:** 77990 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6110
- **Phone:** (857) 307-0896
## 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): Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Emerson Practice Associates, Inc. (NPI 1508020199, Concord, MA); Core Physicians, LLC (NPI 1336330588, Exeter, NH); Exeter Hospital Inc (NPI 1437158433, Exeter, NH); Wentworth Douglass Physician Corporation (NPI 1336751825, Dover, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 1991
## Record status
- **NPPES last updated:** March 29, 2021
- **Other identifiers:** Medicaid 3072785 (NH)
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Source: [NPI Profile](https://npiprofile.com/npi/1154374890) · Data from the CMS NPPES public registry.