David Ziehr, MD
David Ziehr, MD holds NPI 1447631874, with a primary taxonomy of critical care medicine (internal medicine) physician and a practice location in Boston, MA. The number was issued on June 11, 2015 and the NPPES record was last updated on October 31, 2025. The record lists 3 taxonomy codes. 4 additional practice locations are listed.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Critical Care Medicine (Internal Medicine) Physician Primary | 207RC0200X | 273801 (MA) |
| Internal Medicine Physician | 207R00000X | L-263982 (MA) |
| Pulmonary Disease Physician | 207RP1001X | 273801 (MA) |
Practice locations
55 Fruit Street
Boston, MA 02114
Local context
Active NPPES records list 120 providers with critical care medicine (internal medicine) physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 73 of them within 10 miles.
The same primary taxonomy is listed by 171 in Massachusetts and 7,319 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- David R Ziehr
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
Building software? Fetch this NPI programmatically with the NPILayer Provider API.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://api.npilayer.com/v1/providers/1447631874"