CATHERINE BUETTNER MD
NPI 1487692604
Internal Medicine in Boston, MA
About Catherine Buettner Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE BUETTNER MD (NPI 1487692604) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (217389) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and maintains a secondary practice location in Cambridge.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Catherine Buettner 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
4Medicare enrollment records show Catherine Buettner reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02113
- Reassigned Medicare billing, Massachusetts enrollment
- 75 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 clinicians in this Medicare group
Cambridge, MA 02138
- Reassigned Medicare billing, Massachusetts enrollment
- 423 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02113 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 02113
BOSTON, MA 02113
BOSTON, MA 02113
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 Catherine Buettner's NPI number?
The NPI number for Catherine Buettner is 1487692604. It was assigned to this individual provider in the NPPES registry on June 2, 2006.
Where is Catherine Buettner located?
Catherine Buettner practices at 332 Hanover St, Boston, MA 02113. The listed phone number is (617) 643-8000.
What is Catherine Buettner's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Catherine Buettner enrolled in Medicare?
Yes. Catherine Buettner 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 Catherine Buettner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Buettner reassigns Medicare benefits to 4 organizations: North End Community Health Committee Inc (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Mount Auburn Professional Services Inc (Cambridge, 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 Catherine Buettner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Catherine Buettner accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Catherine Buettner 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 Catherine Buettner affiliated with any hospitals?
According to CMS data, Catherine Buettner is affiliated with Mount Auburn Hospital.
When was this NPI record last updated?
The NPPES record for Catherine Buettner was last updated on September 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Catherine Buettner, MD · NPI 1487692604
Internal Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 2, 2006.
## Identity
- **NPI:** 1487692604 (Entity type: Individual)
- **Enumerated:** June 2, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 217389 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 332 HANOVER ST, Boston, MA 02113-1901
- **Phone:** (617) 643-8000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): North End Community Health Committee Inc (NPI 1780606608, Boston, MA); Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Mount Auburn Professional Services Inc (NPI 1992750996, Cambridge, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** September 9, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1487692604) · Data from the CMS NPPES public registry.