KAREN RITA JACOBSON MD
NPI 1164407623
Internal Medicine - Infectious Disease in Boston, MA
About Karen Rita Jacobson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN RITA JACOBSON MD (NPI 1164407623) is an individual infectious disease provider in Boston, Massachusetts, licensed in Massachusetts (229163) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of Johns Hopkins University School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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 Rita Jacobson 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 Reassignment
Medicare enrollment records show Karen Jacobson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 573 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.
Boston Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Jacobson's NPI number?
The NPI number for Karen Jacobson is 1164407623. It was assigned to this individual provider in the NPPES registry on December 7, 2005.
Where is Karen Jacobson located?
Karen Jacobson practices at 725 Albany St Shapiro 9, Suite B, Boston, MA 02118. The listed phone number is (617) 414-4290.
What is Karen Jacobson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Karen Jacobson enrolled in Medicare?
Yes. Karen Jacobson 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 organization bills Medicare for Karen Jacobson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Jacobson reassigns Medicare benefits to Evans Medical Foundation, Inc. (Boston, MA). The 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 Jacobson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Jacobson accept?
Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Karen Jacobson 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 Jacobson affiliated with any hospitals?
According to CMS data, Karen Jacobson is affiliated with Boston Medical Center.
When was this NPI record last updated?
The NPPES record for Karen Jacobson was last updated on July 15, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 Rita Jacobson, MD · NPI 1164407623
Infectious Disease physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since December 7, 2005.
## Identity
- **NPI:** 1164407623 (Entity type: Individual)
- **Enumerated:** December 7, 2005
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 229163 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 725 ALBANY ST, SHAPIRO 9, SUITE B, Boston, MA 02118-2526
- **Phone:** (617) 414-4290 · **Fax:** (617) 414-4285
## 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:** Evans Medical Foundation, Inc. (NPI 1912954124, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** July 15, 2014
- **Other identifiers:** Medicaid 110073936A (MA); Medicare PIN A4005306 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1164407623) · Data from the CMS NPPES public registry.