Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Patrick Armstrong, MD

Individual provider Anesthesiology Physician · NPI 1255451639

Dr. Patrick Armstrong, MD practises Anesthesiology in Durham, North Carolina. Graduated from Northwestern University Feinberg Medical School in 2005, 21 years ago. Practices with Anesthesia Associates of Morristown PA, a 168-clinician group and accepts Medicare assignment. Licensed in Michigan and North Carolina.

Years since qualifying
21
Trained at
Northwestern University Feinberg Medical School
Licensed in
MI, NC
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2100 Erwin Rd
Durham, NC 27710-0001 Not confirmed with CMS for 17 years — call before visiting
Phone: (919) 684-8111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 2009-00473 (NC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4301087395 (MI)

Record details

NPI number1255451639
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2007
Last updated in NPPESJuly 29, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 2005 (21 years in practice)
Group practice Anesthesia Associates Of Morristown Pa — 168 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients351
Services billed 512 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $239 14 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Ahs Hospital Corp Hospital · Hackettstown, NJ
  • Morristown Medical Center Hospital · Morristown, NJ

Colleagues at Anesthesia Associates of Morristown PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 168 clinicians in the practice; 12 are shown here.

Other providers in Durham