Doctor profile · Federal record
Dr. David Ziehr, MD
Critical Care Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Internal Medicine Physician · Pulmonary Disease Physician · Boston, MA
- NPI 1447631874
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
Massachusetts General Hospital, 55 Fruit Street
Boston, MA 02114
(617) 726-2674 - Additional location
-
2014 Washington St
Newton, MA 024621699
(617) 243-6000 - Additional location
-
55 Fruit St
Boston, MA 021142621 - Additional location
-
75 Francis St
Boston, MA 021156110
(617) 732-5500 - Additional location
-
789 Central Ave
Dover, NH 038202526
(603) 742-5252
Show 2 more locations
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- October 31, 2025
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State licenses (2)
- Massachusetts #273801 · Massachusetts #L-263982
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447631874. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
146
Distinct HCPCS
2
Medicare allowed
$26,326
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 100 | 52 | $225 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 46 | 11 | $84 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 92. This provider delivers 1.6× the peer median.Frequently asked questions
What is Dr. David Ziehr's medical specialty?
Dr. David Ziehr practices Critical Care Medicine (Internal Medicine) Physician in Boston, MA.
Where does Dr. David Ziehr practice?
Dr. David Ziehr practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177262674.
What is Dr. David Ziehr's NPI?
Dr. David Ziehr's National Provider Identifier (NPI) is 1447631874, issued by NPPES.
Does Dr. David Ziehr accept Medicare assignment?
Yes. Dr. David Ziehr accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Ziehr commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.