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DR. LISA MARIE WITMER MD
NPI 1891498069
Internal Medicine in Hershey, PA

Active since March 24, 2023PECOS EnrolledAccepts Medicare Assignment
500 UNIVERSITY DR, MC CA410, HERSHEY, PA 17033(717) 531-8521 Get Directions Write a Review

NPPES record last updated: June 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 2, 2026, Apr 6, 2026, Mar 6, 2026 and 1 more (4 updates tracked since 2023).

About Dr. Lisa Marie Witmer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LISA MARIE WITMER MD (NPI 1891498069) is an individual internal medicine provider in Hershey, Pennsylvania, licensed in Pennsylvania (MD493832) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS, is affiliated with Milton S Hershey Medical Center, and maintains a secondary practice location in Hershey.

NPPES Registry Identity

NPI1891498069
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. LISA MARIE WITMERCredential: MD
Location Address500 UNIVERSITY DR, MC CA410Hershey, PA 17033-2360
Mailing Address500 University Dr, Mc Ca410Hershey, PA 17033-2360 · (717) 531-5208 · Fax (717) 531-0119
Phone(717) 531-8521
Sole ProprietorNo
Medical School CMSPennsylvania State University College Of MedicineGraduated 2023
Enumeration DateMarch 24, 2023
Last NPPES UpdateJune 2, 20264 updates tracked since enumeration
NPPES CertifiedJune 2, 2026
✔ NPI 1891498069 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · MD493832
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License MD493832 (PA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 207R00000X (PA)
500 UNIVERSITY DR, Hershey, PA 17033
Open in Google Maps ↗

Secondary Practice Location 1

Location 11150 Cocoa AveHershey, PA 17033-1712 · Phone (717) 314-6015

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Lisa Marie Witmer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618339540
PECOS Enrollment IDI20260613000360
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Lisa Witmer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Milton S Hershey Medical Center Physicians Group
Same address
Orthopaedic Surgery
500 UNIVERSITY DR
Hershey, PA 17033
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 2,216 clinicians in this Medicare group
NPI 1710951744 (800) 243-1455

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Milton S Hershey Medical Center

Acute Care Hospitals · Hershey, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390256
Location500 University DriveHershey, PA 17033 · Dauphin County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. DANIEL MICHAEL WEISS I PA-C
Physician Assistant
500 UNIVERSITY DR
HERSHEY, PA 17033
Dauphin County (717) 531-7299
NICOLE SWALLOW M.D.
Internal Medicine
500 UNIVERSITY DR, H088
HERSHEY, PA 17033
Dauphin County (717) 531-1692
NEERAV GOYAL M.D.
Otolaryngology
500 UNIVERSITY DR
HERSHEY, PA 17033
Dauphin County (717) 531-8521
KARIMA C FITZGERALD M.D.
Surgery (Trauma Surgery)
500 UNIVERSITY DR
HERSHEY, PA 17033
Dauphin County (717) 531-8887
DR. ANTHONY SIMON BONAVIA M.D.
Anesthesiology (Critical Care Medicine)
500 UNIVERSITY DR, BOX 3951, DAVISON BLDG, TRENT DRIVE
HERSHEY, PA 17033
Dauphin County (717) 531-8521
DR. HIROKO SHIKE MD
Pathology (Clinical Pathology/Laboratory Medicine)
500 UNIVERSITY DR, HERSHEY MEDICAL CENTER
HERSHEY, PA 17033
Dauphin County (717) 531-8615
MARIUM TARIQ M.D.
Family Medicine
500 UNIVERSITY DR
HERSHEY, PA 17033
Dauphin County (717) 531-8521
KANTHI BANGALORE KRISHNA MBBS
Pediatrics (Pediatric Endocrinology)
500 UNIVERSITY DR
HERSHEY, PA 17033
Dauphin County (800) 243-1455

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lisa Witmer's NPI number?

The NPI number for Lisa Witmer is 1891498069. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Where is Lisa Witmer located?

Lisa Witmer practices at 500 University Dr Mc Ca410, Hershey, PA 17033. The listed phone number is (717) 531-8521.

What is Lisa Witmer's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Lisa Witmer enrolled in Medicare?

Yes. Lisa Witmer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Lisa Witmer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lisa Witmer reassigns Medicare benefits to The Milton S Hershey Medical Center Physicians Group (Hershey, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lisa Witmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Lisa Witmer affiliated with any hospitals?

According to CMS data, Lisa Witmer is affiliated with Milton S Hershey Medical Center.

When was this NPI record last updated?

The NPPES record for Lisa Witmer was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.