Dr. Mark Hershel Eig, MD
- Part D claims, 2024
- 187
- Hospital affiliations
- 1
- Industry payments
- $564
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 300 South Preston Street, Ranson, WV 25438
- Practice phone
- Call (304) 728-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Eig'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. Mark Hershel Eig is an internist in Ranson, West Virginia
Dr. Eig practices at Jefferson Medical Center in Ranson, West Virginia, part of West Virginia University Health System.
Dr. Eig's NPI, 1043377880, was assigned on January 2, 2007. Dr. Eig holds Maryland license D024886.
- NPI
- 1043377880NPI Registry (opens in a new tab)
- NPI enumeration date
- January 2, 2007
- NPI status
- Active
- Practice phone
- (304) 728-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark Hershel Eig practices at Jefferson Medical Center in Ranson, West Virginia
Dr. Eig's primary practice is Jefferson Medical Center, at 300 South Preston Street, Ranson, WV 25438 in Jefferson County. The practice phone is (304) 728-1600.
- Jefferson Medical Center300 South Preston Street, Ranson, WV 25438 · Jefferson CountyPhone(304) 728-1600
Source: Dmand AI Affiliation Data
Dr. Mark Hershel Eig is affiliated with 2 sites of care
Dr. Eig's primary practice is Jefferson Medical Center in Ranson, West Virginia, part of West Virginia University Health System. Dmand AI also links Dr. Eig to 1 physician office, 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 Hershel Eig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Eig practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Hershel Eig is one of 718 internists in West Virginia
Internal medicine is Dr. Eig's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Eig is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Eig
Counts of internists 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 Hershel Eig's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Eig's median patient age at 61, with 40% women.
Dr. Eig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Mark Hershel Eig wrote 187 Medicare Part D claims in 2024
In 2024, Dr. Eig wrote 187 Medicare Part D claims for 26 patients. 81% of them were for generic drugs. CMS names the drug for 104 of them, across 6 drugs with 11 or more claims each, at $17,572 in total drug cost. In 2023, CMS named 101 claims across 5 drugs.
Dr. Eig's Part D claims by kind of drug, 2024
- Generic152 claims81%
- Brand-name35 claims19%
Dr. Eig'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1012024: 1043%
Drugs named by CMS: 6 in 2024, 5 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), 2024 data
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Dr. Mark Hershel Eig received $564 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Eig from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $433.
General payments to Dr. Eig by program year, 2016 to 2025
Companies that paid Dr. Eig the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Hershel Eig'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 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Hershel Eig
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 Hershel Eig's NPI number?
Dr. Mark Hershel Eig's NPI number is 1043377880. It was assigned on January 2, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Hershel Eig?
Dr. Mark Hershel Eig is an internist in Ranson, West Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark Hershel Eig practice?
Dr. Eig practices at 300 South Preston Street, Ranson, WV 25438. Dr. Eig's primary practice is Jefferson Medical Center in Ranson, West Virginia, part of West Virginia University Health System. Dmand AI also links Dr. Eig to 1 physician office.
What is Dr. Mark Hershel Eig's office phone number?
The practice phone on file for Dr. Eig is (304) 728-1600.
What is Dr. Mark Hershel Eig's medical license number?
Dr. Eig holds Maryland license D024886.
Which hospitals is Dr. Mark Hershel Eig affiliated with?
Dr. Eig practices at Jefferson Medical Center in Ranson, West Virginia.
What drugs does Dr. Mark Hershel Eig prescribe most?
In 2024 Medicare Part D data, Dr. Eig's most prescribed drugs by claims were Escitalopram Oxalate, Bupropion XL and Ozempic.
Has Dr. Mark Hershel Eig received payments from drug or device companies?
CMS Open Payments shows $564 in general payments to Dr. Eig from 5 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Mark Hershel Eig been practicing?
Dr. Eig's NPI was assigned in 2007.
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