Dr. Mark E. Armstrong, MD
- Medicare services, 2024
- 48
- Medicare patients, 2026
- 95
- Part D claims, 2026
- 61
- Hospital affiliations
- 2
- Industry payments
- $6,023
- Practice address
- 1020 Thompson Street, Jersey Shore, PA 17740
- Practice phone
- Call (570) 398-3101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Armstrong's professional email, personal email and mobile number
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Dr. Mark E. Armstrong is a general surgeon in Jersey Shore, Pennsylvania
Dr. Armstrong practices at Geisinger Jersey Shore Hospital in Jersey Shore, Pennsylvania, part of Risant Health.
Dr. Armstrong's NPI, 1013981711, was assigned on February 17, 2006. Dr. Armstrong graduated from Temple University School of Medicine in 1988. Dr. Armstrong holds Pennsylvania license MD043637L.
- NPI
- 1013981711NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103916523
- NPI enumeration date
- February 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (570) 398-3101
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark E. Armstrong practices at Geisinger Jersey Shore Hospital in Jersey Shore, Pennsylvania
Dr. Armstrong's primary practice is Geisinger Jersey Shore Hospital, at 1020 Thompson Street, Jersey Shore, PA 17740 in Lycoming County. The practice phone is (570) 398-3101.
- Geisinger Jersey Shore Hospital1020 Thompson Street, Jersey Shore, PA 17740 · Lycoming CountyPhone(570) 398-3101
Source: Dmand AI Affiliation Data
Dr. Mark E. Armstrong is affiliated with 4 sites of care and 2 medical groups
Dr. Armstrong's primary practice is Geisinger Jersey Shore Hospital in Jersey Shore, Pennsylvania, part of Risant Health. Dr. Armstrong is also affiliated with Geisinger Lewistown Hospital. The medical group on file is Geisinger. Dmand AI also links Dr. Armstrong to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark E. Armstrong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armstrong practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Geisinger Jersey Shore Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark E. Armstrong is one of 1,398 general surgeons in Pennsylvania
Surgery is Dr. Armstrong's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Armstrong is licensed in Pennsylvania.
Specialties and state licenses
- Surgery, PennsylvaniaPrimary
General surgeons near Dr. Armstrong
Counts of general surgeons 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. Mark E. Armstrong billed Medicare for 48 services in 2024
CMS data shows 48 Medicare services from Dr. Armstrong across 3 procedure codes in 2024, for 95 Medicare patients. Medicare paid $4,198 for them. Every service was in an office.
Dr. Armstrong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 672024: 3646%
- Surgery
- 2023: 192024: 1237%
Dr. Armstrong compared with the Pennsylvania median for general surgeons, 2024
- Dr. Armstrong
- Pennsylvania median
- Medicare services
- 48vs 15870% below
- Medicare patients
- 95vs 12725% below
- Part D claims
- 47vs 2962% above
Medians across 1,213 general surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Armstrong's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Armstrong and other general surgeons in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark E. Armstrong treated 95 Medicare patients in 2026, average age 71
CMS counts 95 Medicare patients who saw Dr. Armstrong in 2026. The largest group is 65 to 74, with 57 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Armstrong's median patient age at 68, with 34% women.
Dr. Armstrong's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Armstrong's Medicare patients by sex, 2026
- Women4446%
- Men5154%
Chronic conditions among Dr. Armstrong's Medicare patients, 2026
- High cholesterol75%
- High blood pressure73%
- Arthritis39%
- Diabetes33%
- Anxiety27%
- Chronic kidney disease25%
- Depression21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
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 68
Patient panel by sex, all payers
- Women34%
- Men66%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Mark E. Armstrong wrote 61 Medicare Part D claims in 2026
In 2026, Dr. Armstrong wrote 61 Medicare Part D claims for 46 patients. 95% of them were for generic drugs. CMS names the drug for 47 of them, across 2 drugs with 11 or more claims each, at $283 in total drug cost. In 2023, CMS named 20 claims across 1 drug.
Dr. Armstrong's Part D claims by kind of drug, 2026
- Generic58 claims95%
- Brand-name and other3 claims5%
Dr. Armstrong's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Armstrong's Part D claims, 2026
- Opioids56%34 of 61 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 202024: 47135%
Drugs named by CMS: 2 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
Dr. Mark E. Armstrong ranks in the 51st percentile for colonoscopy in Medicare
Dr. Armstrong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 26 procedures of colonoscopy by Dr. Armstrong, more than 51% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Armstrong ranks in Medicare procedure volume
- Colonoscopy
- 51st percentile26 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark E. Armstrong received $6,023 in industry payments from 2017 to 2024
CMS Open Payments shows 37 general payments to Dr. Armstrong from 3 drug and device companies from 2017 to 2024. Education make up the largest share, 50% of the total. Intuitive Surgical, Inc. paid the most, $5,920.
General payments to Dr. Armstrong by program year, 2017 to 2024
General payments to Dr. Armstrong by kind, 2017 to 2024
- Education$3,00050%
- Travel and lodging$1,90132%
- Food and beverage$1,12219%
Companies that paid Dr. Armstrong the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark E. Armstrong graduated from Temple University School of Medicine
Dr. Armstrong graduated from Temple University School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark E. 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Mark E. 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. Mark E. Armstrong's NPI number?
Dr. Mark E. Armstrong's NPI number is 1013981711. It was assigned on February 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark E. Armstrong?
Dr. Mark E. Armstrong is a general surgeon in Jersey Shore, Pennsylvania. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mark E. Armstrong practice?
Dr. Armstrong practices at 1020 Thompson Street, Jersey Shore, PA 17740. Dr. Armstrong's primary practice is Geisinger Jersey Shore Hospital in Jersey Shore, Pennsylvania, part of Risant Health. Dmand AI also links Dr. Armstrong to 2 group practices and clinics and 1 medical group, and a free account names each one.
What is Dr. Mark E. Armstrong's office phone number?
The practice phone on file for Dr. Armstrong is (570) 398-3101. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Mark E. Armstrong's email address?
Dmand AI checks professional and personal email addresses for Dr. Armstrong through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Mark E. Armstrong's medical license number?
Dr. Armstrong holds Pennsylvania license MD043637L.
Which hospitals is Dr. Mark E. Armstrong affiliated with?
Dr. Armstrong practices at Geisinger Jersey Shore Hospital in Jersey Shore, Pennsylvania. Dr. Armstrong is also affiliated with Geisinger Lewistown Hospital.
What medical group is Dr. Mark E. Armstrong part of?
Dr. Armstrong is linked to Geisinger. Dmand AI links Dr. Armstrong to 1 more medical group, named with a free account.
Who does Dr. Mark E. Armstrong practice with?
Dmand AI links 4,272 HCPs to Dr. Armstrong's primary medical group, 76 of them general surgeons. A free account lists them, with verified contacts.
Does Dr. Mark E. Armstrong accept Medicare?
Yes. CMS data shows Dr. Armstrong billed Medicare for 48 services in 2024, and Dr. Armstrong accepts Medicare assignment.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Mark E. Armstrong see?
CMS counts 95 Medicare patients who saw Dr. Armstrong in 2026, with an average age of 71.
What services does Dr. Mark E. Armstrong bill to Medicare?
In 2024, Dr. Armstrong's most billed Medicare services were office visit, new patient (99203), office visit, new patient (99204) and surgery: digestive system (46600).
Where did Dr. Mark E. Armstrong go to medical school?
Dr. Armstrong graduated from Temple University School of Medicine in 1988.
What drugs does Dr. Mark E. Armstrong prescribe most?
In 2024 Medicare Part D data, Dr. Armstrong's most prescribed drugs by claims were Oxycodone-Acetaminophen and Hydrocortisone.
Has Dr. Mark E. Armstrong received payments from drug or device companies?
CMS Open Payments shows $6,023 in general payments to Dr. Armstrong from 3 companies from 2017 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Mark E. Armstrong been practicing?
Dr. Armstrong graduated from medical school in 1988, 38 years ago.
What EHR does Dr. Mark E. Armstrong's practice use?
Dmand AI tracks the EHR system at Geisinger Jersey Shore Hospital and at 3 more sites and 1 medical group. The vendor and product are available with a free Dmand AI account.
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