Dr. Lisa Marie Witmer, MD
- Part D claims, 2024
- 211
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 500 University Drive, Hershey, PA 17033
- Practice phone
- Call (717) 531-8521
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Witmer's professional email, personal email and mobile number
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Dr. Lisa Marie Witmer is an internist in Waynesboro, Pennsylvania
Dr. Witmer practices at Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania, part of Penn State.
Dr. Witmer's NPI, 1891498069, was assigned on March 24, 2023. Dr. Witmer holds Pennsylvania license MD493832.
- NPI
- 1891498069NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618339540
- NPI enumeration date
- March 24, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (717) 531-8521
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lisa Marie Witmer practices in Hershey and Waynesboro
Dr. Witmer's primary practice is Penn State Health Milton S. Hershey Medical Center, at 500 University Drive, Hershey, PA 17033 in Dauphin County. The practice phone is (717) 531-8521. The NPI Registry lists Dr. Witmer's practice address as 501 E Main St, Waynesboro, PA 17268.
- Penn State Health Milton S. Hershey Medical CenterPrimary500 University Drive, Hershey, PA 17033 · Dauphin CountyPhone(717) 531-8521
- NPI Registry address501 E Main St, Waynesboro, PA 17268 · Franklin CountyPhone(717) 531-8521
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Lisa Marie Witmer is affiliated with 1 site of care and 1 medical group
Dr. Witmer's primary practice is Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania, part of Penn State. The medical group on file is Penn State Health Milton S. Hershey Medical Center.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lisa Marie Witmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Witmer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Penn State Health Milton S. Hershey Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lisa Marie Witmer is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Witmer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Witmer is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Witmer
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. Lisa Marie Witmer's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Witmer's median patient age at 68, with 89% women.
Dr. Witmer'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
- Women89%
- Men11%
Source: Dmand AI Patient Panel Data
Dr. Lisa Marie Witmer wrote 211 Medicare Part D claims in 2024
In 2024, Dr. Witmer wrote 211 Medicare Part D claims for 47 patients. 87% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $155 in total drug cost.
Dr. Witmer's Part D claims by kind of drug, 2024
- Generic183 claims87%
- Brand-name28 claims13%
Dr. Witmer'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.
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
How Dr. Lisa Marie Witmer takes part in Medicare
Dr. Witmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Lisa Marie Witmer'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Lisa Marie Witmer
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What is Dr. Lisa Marie Witmer's NPI number?
Dr. Lisa Marie Witmer's NPI number is 1891498069. It was assigned on March 24, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Lisa Marie Witmer?
Dr. Lisa Marie Witmer is an internist in Waynesboro, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lisa Marie Witmer practice?
Dr. Witmer practices at 500 University Drive, Hershey, PA 17033. Dr. Witmer also practices at 501 E Main St, Waynesboro, PA 17268. Dr. Witmer's primary practice is Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania, part of Penn State.
What is Dr. Lisa Marie Witmer's office phone number?
The practice phone on file for Dr. Witmer is (717) 531-8521.
What is Dr. Lisa Marie Witmer's medical license number?
Dr. Witmer holds Pennsylvania license MD493832.
Which hospitals is Dr. Lisa Marie Witmer affiliated with?
Dr. Witmer practices at Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania.
What medical group is Dr. Lisa Marie Witmer part of?
Dr. Witmer is linked to Penn State Health Milton S. Hershey Medical Center.
Does Dr. Lisa Marie Witmer accept Medicare?
Yes. CMS lists Dr. Witmer as accepting Medicare assignment.
What drugs does Dr. Lisa Marie Witmer prescribe most?
In 2024 Medicare Part D data, Dr. Witmer's most prescribed drugs by claims were Lisinopril, Levothyroxine Sodium and Metformin HCl.
How long has Dr. Lisa Marie Witmer been practicing?
Dr. Witmer's NPI was assigned in 2023.
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