| Massager, Vacuum, Radio Frequency Induced Heat | Federal registry | 1 |
| Mass Spectrometer, Clinical Use | Federal registry | 1 |
| Mass Spectrometry, Microorganism Identification, Blood Culture | Federal registry | 1 |
| Material, Quality Control, Semen Analysis | Federal registry | 1 |
| md series | Company website | 1 |
| Media, Reproductive | Federal registry | 1 |
| Media, Reproductive, Exempt | Federal registry | 1 |
| Medical Equipment | Company website | 1 |
| Methylene Blue, Tissue Stain | Federal registry | 1 |
| Methyl Green | Federal registry | 1 |
| Micromanipulators And Microinjectors, Assisted Reproduction | Federal registry | 1 |
| Microscope And Microscope Accessories, Reproduction, Assisted | Federal registry | 1 |
| Microtools, Assisted Reproduction (Pipettes), Exempt | Federal registry | 1 |
| Minor Surgical Procedures Tray | Federal registry | 1 |
| Mirrors | Company website | 1 |
| Mixer, Breathing Gases, Anesthesia Inhalation | Federal registry | 1 |
| Mixture, Hematology Quality Control | Federal registry | 1 |
| Monitor, Blood-Gas, On-Line, Cardiopulmonary Bypass | Federal registry | 1 |
| Monitor, Carbon-Dioxide, Cutaneous | Federal registry | 1 |
| Monitor, Extracellular Fluid, Lymphedema, Extremity | Federal registry | 1 |
| Monitor, Oxygen, Cutaneous, For Infant Not Under Gas Anesthesia | Federal registry | 1 |
| Monitor, Physiological, Patient(With Arrhythmia Detection Or Alarms) | Federal registry | 1 |
| Monitors | Company website | 1 |
| Monitor, St Segment With Alarm | Federal registry | 1 |
| Mounts | Company website | 1 |
| Mycoplasma Pneumoniae Dna Assay System | Federal registry | 1 |
| Nadh Oxidation/Nad Reduction, Alt/Sgpt | Federal registry | 1 |
| Nadh Oxidation/Nad Reduction, Ast/Sgot | Federal registry | 1 |
| Nad Reduction/Nadh Oxidation, Cpk Or Isoenzymes | Federal registry | 1 |
| Nad Reduction/Nadh Oxidation, Lactate Dehydrogenase | Federal registry | 1 |
| Needle, Aspiration And Injection, Disposable | Federal registry | 1 |
| Needle, Hypodermic, Single Lumen | Federal registry | 1 |
| networking solutions | Company website | 1 |
| Neurological Stereotaxic Instrument | Federal registry | 1 |
| Nitrogen Generators | Company website | 1 |
| Nitrophenylphosphate, Alkaline Phosphatase Or Isoenzymes | Federal registry | 1 |
| Non-Sars Coronavirus Multiplex Nucleic Acid Assay | Federal registry | 1 |
| Nuclear Fast Red | Federal registry | 1 |
| Orange G | Federal registry | 1 |
| Orthopedic Stereotaxic Instrument | Federal registry | 1 |
| Oximeter To Measure Hemoglobin | Federal registry | 1 |
| Pacemaker, Cardiac, External Transcutaneous (Non-Invasive) | Federal registry | 1 |
| Paper, Articulation | Federal registry | 1 |
| Parainfluenza Multiplex Nucleic Acid Assay | Federal registry | 1 |
| Ph Buffer | Federal registry | 1 |
| Phosphomolybdate (Colorimetric), Inorganic Phosphorus | Federal registry | 1 |
| Photometric Method, Iron (Non-Heme) | Federal registry | 1 |
| Photometric Method, Magnesium | Federal registry | 1 |
| Pin, Retentive And Splinting, And Accessory Instruments | Federal registry | 1 |
| Plasma, Coagulation Control | Federal registry | 1 |
