Doctor profile · Federal record
Dr. William Garneau
Internal Medicine Physician (CMS: Hospitalist) · Addiction Medicine (Internal Medicine) Physician · Baltimore, MD
- NPI 1629431796
- Accepts Medicare
- MIPS 74.4 / 100 · 2023
- 10 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
600 N Wolfe St
Baltimore, MD 212870005
(410) 955-5000 - Additional location
-
1800 Orleans St
Baltimore, MD 212870010
(410) 955-7911
fax (410) 955-0374 - Additional location
-
601 N Caroline St
Baltimore, MD 212870006 - Mailing address
-
6201 Greenleigh Ave
Baltimore, MD 212202004
Credentials & registration
- NPI registered
- April 2016 — 10 yrs on file
- Profile last updated
- January 30, 2026
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Maryland #D87025 · Maryland #D0087025
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629431796. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
283
Distinct HCPCS
5
Medicare allowed
$40,410
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 146 | 65 | $126 | |
99291 |
Critical care, first 30-74 minutes | 51 | 20 | $227 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 47 | 25 | $84 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 28 | 28 | $184 | |
99239 |
Hospital discharge day management, more than 30 minutes | 11 | 11 | $122 |
In context: peer comparison
Among 363 peers in Baltimore Internal Medicine Physician, average services per provider: 105. This provider delivers 2.7× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. William Garneau's medical specialty?
Dr. William Garneau practices Internal Medicine Physician in Baltimore, MD.
Where does Dr. William Garneau practice?
Dr. William Garneau practices at 600 N Wolfe St, Baltimore, MD 212870005. Office phone: 4109555000.
What is Dr. William Garneau's NPI?
Dr. William Garneau's National Provider Identifier (NPI) is 1629431796, issued by NPPES.
Does Dr. William Garneau accept Medicare assignment?
Yes. Dr. William Garneau accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Garneau commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.