AccelerationAnalysis of VarianceAthletic Injuries
Dr. Charles Armstrong, MD
NPI1134191505
- Medicare services, 2016
- 173
- Part D claims, 2019
- 39
- Publications
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 300 Main St, Lewiston, ME 04240-7007
- Practice phone
- Call (207) 795-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Armstrong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Charles Armstrong is an emergency medicine physician in Lewiston, Maine
Dr. Armstrong practices in Lewiston, Maine.
Dr. Armstrong's NPI, 1134191505, was assigned on February 1, 2006. Dr. Armstrong holds Maine license 013341.
NPI and contact details
- NPI
- 1134191505NPI Registry (opens in a new tab)
- NPI enumeration date
- February 1, 2006
- NPI status
- Active
- Practice phone
- (207) 795-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Charles Armstrong's practice address is in Lewiston, Maine
Dr. Armstrong's practice address in the NPI Registry is 300 Main St, Lewiston, ME 04240-7007. The practice phone is (207) 795-0111.
- NPI Registry address300 Main St, Lewiston, ME 04240-7007Phone(207) 795-0111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Charles Armstrong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armstrong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Armstrong's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Armstrong practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Charles Armstrong is one of 410 emergency medicine physicians in Maine
Emergency medicine is Dr. Armstrong's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Armstrong is licensed in Maine.
Specialties and state licenses
- Emergency medicine, MainePrimary
Emergency medicine physicians near Dr. Armstrong
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Charles Armstrong billed Medicare for 173 services in 2016
CMS data shows 173 Medicare services from Dr. Armstrong across 4 procedure codes in 2016. Medicare paid $11,709 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2016173
Paid by Medicare$11,709
Procedure codes4
Dr. Armstrong compared with the Maine median for emergency medicine physicians, 2016
- Dr. Armstrong
- Maine median
- Medicare services
- 173vs 1846% below
- Part D claims
- 39vs 5833% below
Medians across 426 emergency medicine physicians in Maine with Dmand AI profiles that report each measure.
Dr. Armstrong's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Armstrong?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Armstrong and other emergency medicine physicians in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles Armstrong's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Armstrong's median patient age at 64, with 0% women.
Dr. Armstrong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Charles Armstrong wrote 39 Medicare Part D claims in 2019
In 2019, Dr. Armstrong wrote 39 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $224 in total drug cost. In 2018, CMS named 41 claims across 3 drugs.
Part D claims, 201939
Drugs named by CMS2
Total drug cost$224
Dr. Armstrong's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 412019: 395%
Drugs named by CMS: 2 in 2019, 3 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Find emergency medicine physicians like Dr. Armstrong by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Charles Armstrong has 1 publication on record
Dmand AI links 1 paper to Dr. Armstrong.
Papers1
Recent publications by Dr. Armstrong
See who Dr. Armstrong researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Armstrong works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Charles Armstrong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Charles Armstrong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Charles Armstrong's NPI number?
Dr. Charles Armstrong's NPI number is 1134191505. It was assigned on February 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles Armstrong?
Dr. Charles Armstrong is an emergency medicine physician in Lewiston, Maine. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Charles Armstrong practice?
Dr. Armstrong practices at 300 Main St, Lewiston, ME 04240-7007.
What is Dr. Charles Armstrong's office phone number?
The practice phone on file for Dr. Armstrong is (207) 795-0111.
What is Dr. Charles Armstrong's medical license number?
Dr. Armstrong holds Maine license 013341.
Does Dr. Charles Armstrong accept Medicare?
Yes. CMS data shows Dr. Armstrong billed Medicare for 173 services in 2016.
What services does Dr. Charles Armstrong bill to Medicare?
In 2016, Dr. Armstrong's most billed Medicare services were emergency department visit (99283), emergency department visit (99284) and emergency department visit (99285).
What drugs does Dr. Charles Armstrong prescribe most?
In 2019 Medicare Part D data, Dr. Armstrong's most prescribed drugs by claims were Prednisone and Cephalexin.
How long has Dr. Charles Armstrong been practicing?
Dr. Armstrong's NPI was assigned in 2006.
Does Dr. Charles Armstrong do research?
Dmand AI links 1 publication to Dr. Armstrong.
Selling to emergency medicine practices?
See emergency medicine physicians in Maine by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card