Doctor profile · Federal record
Dr. William Fischer, MD
Internal Medicine Physician (CMS: Pulmonary Disease) · Baltimore, MD
- NPI 1447397039
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
601 N Caroline St
Baltimore, MD 212870006
(410) 283-3984 - Mailing address
-
100 Campbell Ln
Chapel Hill, NC 275147802
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- July 23, 2012
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- North Carolina #2012-01265
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447397039. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
131
Distinct HCPCS
2
Medicare allowed
$25,178
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 113 | 36 | $204 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 18 | 12 | $116 |
In context: peer comparison
Among 363 peers in Baltimore Internal Medicine Physician, average services per provider: 105. This provider delivers 1.2× the peer median.Frequently asked questions
What is Dr. William Fischer's medical specialty?
Dr. William Fischer practices Internal Medicine Physician in Baltimore, MD.
Where does Dr. William Fischer practice?
Dr. William Fischer practices at 601 N Caroline St, Baltimore, MD 212870006. Office phone: 4102833984.
What is Dr. William Fischer's NPI?
Dr. William Fischer's National Provider Identifier (NPI) is 1447397039, issued by NPPES.
Does Dr. William Fischer accept Medicare assignment?
Yes. Dr. William Fischer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Fischer commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.