Dr. Patrick Armstrong, MD
Anesthesiology (Anesthesiology Physician)
- Medicare participating
At a glance
- Medical school
- Northwestern University Feinberg Medical School (2005)
- Years since graduation
- 21
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 351
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
- 2005Medical school: Northwestern University Feinberg Medical School
- 2007Registered 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
-
Anesthesiology Physician primary
NC license 2009-00473 -
Student in an Organized Health Care Education/Training Program
MI license 4301087395
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Morristown Medical Center Morristown, NJ
- Ahs Hospital Corp Hackettstown, NJ
Medical groups
- Anesthesia Associates of Morristown PA (167 clinicians)
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
- 351
- Services billed
- 512
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 41 | 41 |
| Injection of anesthetic agent and/or steroid into other nerve or branch | 35 | 35 |
| Anesthesia for procedure for total knee joint replacement | 33 | 32 |
| Ultrasonic guidance for needle placement | 28 | 28 |
| Anesthesia for total hip replacement | 23 | 23 |
| Anesthesia for other procedure on urinary system through urethra | 22 | 22 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 18 | 18 |
| Anesthesia for other procedure on upper abdomen | 17 | 17 |
| Anesthesia for other procedure on lower abdomen | 16 | 16 |
| Anesthesia for electroshock therapy | 16 | 13 |
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.
Payments from drug and device companies
In 2025, 5 companies reported 14 payments worth $239 in total to this clinician.
| Janssen Biotech, Inc. | $150 |
|---|---|
| Merck Sharp & Dohme LLC | $42.87 |
| Medtronic, Inc. | $21.51 |
| Pacira Pharmaceuticals Incorporated | $15.61 |
| Pajunk Medical Systems, LP | $9.90 |
| Food and Beverage | $239 |
|---|
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.