Lawrence Mark Knab

  • Hershey, PA
  • Surgical oncologist
NPI1467786988PAC ID4587962824
Medicare services, 2024
70
Medicare patients, 2024
87
Part D claims, 2024
55
Publications
34
Hospital affiliations
4
Practice address
500 University Drive, Hershey, PA 17033
Practice phone
Call (717) 531-8521
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

See all 6 affiliations

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Lawrence Mark Knab is a surgical oncologist in Hershey, Pennsylvania

Lawrence Knab practices at Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania, part of Penn State.

Lawrence Knab's NPI, 1467786988, was assigned on September 30, 2009. Lawrence Knab holds Pennsylvania license MD459422.

NPI and contact details
Medicare PAC ID
4587962824
NPI enumeration date
September 30, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(717) 531-8521
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Lawrence Mark Knab practices at Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania

Lawrence Knab'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.

Source: Dmand AI Affiliation Data

Lawrence Mark Knab is affiliated with 4 sites of care and 2 medical groups

Lawrence Knab's primary practice is Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania, part of Penn State. Lawrence Knab is also affiliated with Loyola University Medical Center. The medical group on file is Penn State Health Milton S. Hershey Medical Center. Dmand AI also links Lawrence Knab to 2 more hospitals and 1 medical group, each named with a free account.

See all 6 affiliations for Lawrence Knab

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Lawrence Mark Knab's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Lawrence Knab practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Penn State Health Milton S. Hershey Medical CenterAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Lawrence Mark Knab is one of 76 surgical oncologists in Pennsylvania

Surgical oncology is Lawrence Knab's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dmand AI has Lawrence Knab's licenses on file in 2 states: Pennsylvania and Illinois.

Specialties and state licenses

  • Surgical oncology, PennsylvaniaPrimaryLicense MD459422 · taxonomy 2086X0206X
  • Illinois licenseLicense 036133133

Surgical oncologists near Lawrence Knab

Counts of surgical oncologists 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

Lawrence Mark Knab billed Medicare for 70 services in 2024

CMS data shows 70 Medicare services from Lawrence Knab across 3 procedure codes in 2024, all of them office visits, for 87 Medicare patients. Medicare paid $5,472 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202470
Medicare patients87
Paid by Medicare$5,472
Procedure codes3

Lawrence Knab's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1432024: 7051%
Surgery
2023: 302024: 0100%

Lawrence Knab compared with the Pennsylvania median for surgical oncologists, 2024

  • Lawrence Knab
  • Pennsylvania median
Medicare services
70vs 16658% below
Medicare patients
87vs 12028% below
Part D claims
16vs 2433% below

Medians across 76 surgical oncologists in Pennsylvania with Dmand AI profiles that report each measure.

Lawrence Knab'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.

See all procedures by Lawrence Knab

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Lawrence Mark Knab treated 87 Medicare patients in 2024, average age 74

CMS counts 87 Medicare patients who saw Lawrence Knab in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Lawrence Knab's median patient age at 72, with 57% women.

Medicare patients, 202487
Average age74
Average risk score1.59
Also on Medicaid15%

Lawrence Knab's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Lawrence Knab's Medicare patients by sex, 2024

  • Women5462%
  • Men3338%

Chronic conditions among Lawrence Knab's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Cancer48%
  4. Arthritis40%
  5. Ischemic heart disease37%
  6. Diabetes32%
  7. Anxiety28%
  8. Chronic kidney disease26%

Share of Medicare patients with each condition. A patient can have several.

Lawrence Knab's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women57%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Lawrence Mark Knab wrote 55 Medicare Part D claims in 2024

In 2024, Lawrence Knab wrote 55 Medicare Part D claims for 21 patients. 71% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $30,193 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.

Part D claims, 202455
Drugs named by CMS1
Total drug cost$30,193
Part D patients21

Lawrence Knab's Part D claims by kind of drug, 2024

  • Generic39 claims71%
  • Brand-name16 claims29%

Lawrence Knab'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: 242024: 1633%

Drugs named by CMS: 1 in 2024, 2 in 2023.

See all prescribing by Lawrence Knab

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

Lawrence Mark Knab offers telehealth to Medicare patients

Lawrence Knab accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Lawrence Knab as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Colonoscopy: 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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Lawrence Mark Knab has 34 publications on record

Dmand AI links 34 papers to Lawrence Knab, published from 2013 to 2023. 2014 was the busiest year, with 7. The most frequent topics are Pancreatic Neoplasms, Gastrointestinal Stromal Tumors and Postoperative Complications. Lawrence Knab has published most often in Am J Surg. Lawrence Knab's most frequent co-authors are Gerard J. Abood, MD, Emanuel Eguia, MD and David Jason Bentrem, MD.

Papers34
Years published2013 to 2023

Lawrence Knab's papers by year, 2013 to 2023

Topics Lawrence Knab writes about most

  • Pancreatic Neoplasms
  • Gastrointestinal Stromal Tumors
  • Postoperative Complications
  • Robotic Surgical Procedures
  • Stomach Neoplasms
  • Chemotherapy, Adjuvant
  • Curriculum
  • Margins of Excision

Lawrence Knab's most frequent co-authors

Recent publications by Lawrence Knab

See all 34 publications and co-authors

See who Lawrence Knab researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Lawrence Knab works with, so you can find a warm path to the right surgical oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Lawrence Mark Knab received $2,310 in industry payments from 2018 to 2023

CMS Open Payments shows 28 general payments to Lawrence Knab from 6 drug and device companies from 2018 to 2023. Travel and lodging make up the largest share, 53% of the total. Intuitive Surgical, Inc. paid the most, $1,554.

General payments to Lawrence Knab by program year, 2018 to 2023

General payments to Lawrence Knab by kind, 2018 to 2023

$2.3Kin total
  • Travel and lodging$1,22853%
  • Food and beverage$1,08347%

Companies that paid Lawrence Knab the most, 2018 to 2023

Share is of all general payments to this clinician.

See all payments to Lawrence Knab

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Lawrence Mark Knab's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Lawrence Mark Knab

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Lawrence Mark Knab's NPI number?

Lawrence Mark Knab's NPI number is 1467786988. It was assigned on September 30, 2009, and it is active in the NPI Registry.

What does Lawrence Mark Knab specialize in?

Lawrence Mark Knab is a surgical oncologist in Hershey, Pennsylvania. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).

Where does Lawrence Mark Knab practice?

Lawrence Knab practices at 500 University Drive, Hershey, PA 17033. Lawrence Knab's primary practice is Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania, part of Penn State. Dmand AI also links Lawrence Knab to 2 hospitals and 1 medical group.

What is Lawrence Mark Knab's office phone number?

The practice phone on file for Lawrence Knab is (717) 531-8521.

What is Lawrence Mark Knab's medical license number?

Lawrence Knab holds Pennsylvania license MD459422, one of the licenses on file in 2 states.

Which states has Lawrence Mark Knab been licensed in?

Dmand AI has state licenses on file for Lawrence Knab in Pennsylvania and Illinois.

Which hospitals is Lawrence Mark Knab affiliated with?

Lawrence Knab practices at Penn State Health Milton S. Hershey Medical Center in Hershey, Pennsylvania. Lawrence Knab is also affiliated with Loyola University Medical Center. Dmand AI links Lawrence Knab to 2 more hospitals.

What medical group is Lawrence Mark Knab part of?

Lawrence Knab is linked to Penn State Health Milton S. Hershey Medical Center. Dmand AI links Lawrence Knab to 1 more medical group.

Does Lawrence Mark Knab accept Medicare?

Yes. CMS data shows Lawrence Knab billed Medicare for 70 services in 2024, and Lawrence Knab accepts Medicare assignment.

Does Lawrence Mark Knab offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Lawrence Knab as offering telehealth services.

Show 7 more questionsShow fewer questions

How many Medicare patients does Lawrence Mark Knab see?

CMS counts 87 Medicare patients who saw Lawrence Knab in 2024, with an average age of 74.

What services does Lawrence Mark Knab bill to Medicare?

In 2024, Lawrence Knab's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99205) and office visit, established patient (99214).

What drugs does Lawrence Mark Knab prescribe most?

In 2024 Medicare Part D data, Lawrence Knab's most prescribed drugs by claims were Creon.

Has Lawrence Mark Knab received payments from drug or device companies?

CMS Open Payments shows $2,310 in general payments to Lawrence Knab from 6 companies from 2018 to 2023. The largest total came from Intuitive Surgical, Inc.

How long has Lawrence Mark Knab been practicing?

Lawrence Knab graduated from medical school in 2009, 17 years ago.

Does Lawrence Mark Knab do research?

Dmand AI links 34 publications to Lawrence Knab, published from 2013 to 2023.

Who does Lawrence Mark Knab publish with?

Lawrence Knab's most frequent co-authors are Gerard J. Abood, MD (14 shared papers), Emanuel Eguia, MD (11 shared papers) and David Jason Bentrem, MD (10 shared papers).

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