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Dr. Daniel G. Hermann, M.D.

Cardiology (Cardiovascular Disease Physician)

  • Medicare participating

At a glance

Years since graduation
18
In the NPI registry since
2008
Medicare patients seen, 2024
818

Licensed in Texas since 2015, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2008Medical school: University of Texas Medical Branch at Galveston
  • 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Cardiovascular Disease Physician primary
    TX license Q4977 (first issued 2015; active)
  • Internal Medicine Physician
    NC license 2013-01268
  • Student in an Organized Health Care Education/Training Program

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Cardiology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
818
Services billed
3,409
Patients’ average age
77
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes497471
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function492465
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes331142
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report320314
Injection, regadenoson, 0.1 mg18844
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes133111
Nuclear medicine studies of heart muscle at rest and with stress and spect125123
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician117115
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes11598
Technetium tc-99m tetrofosmin, diagnostic, per study dose105102

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 13 companies reported 108 payments worth $6,260 in total to this clinician.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Texas →

Other Cardiology clinicians in Houston

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 12, 2015), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1023279387. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.