DAVID R ZIEHR MD
NPI 1447631874
Internal Medicine - Critical Care Medicine in Boston, MA
About David R Ziehr Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID R ZIEHR MD (NPI 1447631874) is an individual critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (273801) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David R Ziehr 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.
Areas of Expertise CMS Part B claims 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAPhysician 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.
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
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 David Ziehr's NPI number?
The NPI number for David Ziehr is 1447631874. It was assigned to this individual provider in the NPPES registry on June 11, 2015.
Where is David Ziehr located?
David Ziehr practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-2674.
What is David Ziehr's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is David Ziehr enrolled in Medicare?
Yes. David Ziehr 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.
Is David Ziehr affiliated with any hospitals?
According to CMS data, David Ziehr is affiliated with Massachusetts General Hospital and Newton-Wellesley Hospital.
When was this NPI record last updated?
The NPPES record for David Ziehr was last updated on October 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# David R Ziehr, MD · NPI 1447631874
Critical Care Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 11, 2015.
## Identity
- **NPI:** 1447631874 (Entity type: Individual)
- **Enumerated:** June 11, 2015
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 273801 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, Boston, MA 02114
- **Phone:** (617) 726-2674
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Harvard Medical School, class of 2015
## Record status
- **NPPES last updated:** October 31, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1447631874) · Data from the CMS NPPES public registry.