Doctor profile · Federal record

Dr. Thomas Merkle, M.D.

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Baltimore, MD

  • NPI 1770786394
  • Accepts Medicare
  • MIPS 83.9 / 100 · 2023
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2200 Kernan Dr
Baltimore, MD 212076665
(410) 448-6834
fax (410) 448-6482

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
August 10, 2021
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Maryland #D70452

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770786394. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
497
Distinct HCPCS
7
Medicare allowed
$57,161
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 183 96 $125
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 145 69 $83
99239 Hospital discharge day management, more than 30 minutes 52 50 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 46 44 $179
99204 New patient office or other outpatient visit, 45-59 minutes 30 30 $140
99214 Established patient office or other outpatient visit, 30-39 minutes 27 24 $102
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 14 14 $56

In context: peer comparison

Among 51 peers in this city , average services per provider: 125. This provider delivers 4.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Merkle's medical specialty?
Dr. Thomas Merkle practices Hospitalist Physician in Baltimore, MD.
Where does Dr. Thomas Merkle practice?
Dr. Thomas Merkle practices at 2200 Kernan Dr, Baltimore, MD 212076665. Office phone: 4104486834.
What is Dr. Thomas Merkle's NPI?
Dr. Thomas Merkle's National Provider Identifier (NPI) is 1770786394, issued by NPPES.
Does Dr. Thomas Merkle accept Medicare assignment?
Yes. Dr. Thomas Merkle accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Merkle commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.