Doctor profile · Federal record

Dr. Mack Bell, M.D.

Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Baltimore, MD

  • NPI 1801359930
  • Accepts Medicare
  • MIPS 86.8 / 100 · 2023
  • 7 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
22 S Greene St
Baltimore, MD 212011590
(410) 328-7493
fax (410) 328-3494
Mailing address
Po Box 64442
Baltimore, MD 212644442

Credentials & registration

NPPES · NUCC
NPI registered
April 2019 — 7 yrs on file
Profile last updated
October 17, 2022
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Maryland #D94657

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801359930. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
331
Distinct HCPCS
4
Medicare allowed
$44,241
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 207 77 $124
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 76 74 $179
99239 Hospital discharge day management, more than 30 minutes 28 26 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 20 15 $82

In context: peer comparison

Among 51 peers in this city , average services per provider: 125. This provider delivers 2.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Mack Bell's medical specialty?
Dr. Mack Bell practices Hospitalist Physician in Baltimore, MD.
Where does Dr. Mack Bell practice?
Dr. Mack Bell practices at 22 S Greene St, Baltimore, MD 212011590. Office phone: 4103287493.
What is Dr. Mack Bell's NPI?
Dr. Mack Bell's National Provider Identifier (NPI) is 1801359930, issued by NPPES.
Does Dr. Mack Bell accept Medicare assignment?
Yes. Dr. Mack Bell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mack Bell commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.