Neurogastroenterol Motil
Dr. Lawrence A. Szarka, MD
- Medicare services, 2024
- 297
- Medicare patients, 2024
- 290
- Part D claims, 2024
- 294
- Publications
- 26
- Hospital affiliations
- 2
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Szarka'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. Lawrence A. Szarka is a gastroenterologist in Rochester, Minnesota
Dr. Szarka practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Dr. Szarka's NPI, 1619949815, was assigned on February 2, 2006. Dr. Szarka holds Minnesota license 38348.
- NPI
- 1619949815NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628134269
- NPI enumeration date
- February 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lawrence A. Szarka practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Dr. Szarka's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
Dr. Lawrence A. Szarka is affiliated with 3 sites of care and 4 medical groups
Dr. Szarka's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dr. Szarka is also affiliated with Mayo Clinic Hospital. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Szarka to 3 more medical groups and 1 hospice, 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. Lawrence A. Szarka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Szarka practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lawrence A. Szarka is one of 366 gastroenterologists in Minnesota
Gastroenterology is Dr. Szarka's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Szarka's licenses on file in 2 states: Minnesota and Arizona.
Specialties and state licenses
- Gastroenterology, MinnesotaPrimary
- Arizona license
Gastroenterologists near Dr. Szarka
Counts of gastroenterologists 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. Lawrence A. Szarka billed Medicare for 297 services in 2024
CMS data shows 297 Medicare services from Dr. Szarka across 9 procedure codes in 2024, for 290 Medicare patients. Medicare paid $18,648 for them.
Dr. Szarka's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1512024: 21542%
- Tests and treatments
- 2023: 1182024: 8231%
Where Dr. Szarka's Medicare services took place, 2024
- In an office21572%
- In a facility8228%
Dr. Szarka compared with the Minnesota median for gastroenterologists, 2024
- Dr. Szarka
- Minnesota median
- Medicare services
- 297vs 2748% above
- Medicare patients
- 290vs 19846% above
- Part D claims
- 193vs 14236% above
Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Szarka'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.
Need commercial claims for Dr. Szarka?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Szarka and other gastroenterologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lawrence A. Szarka treated 290 Medicare patients in 2024, average age 72
CMS counts 290 Medicare patients who saw Dr. Szarka in 2024. The largest group is 65 to 74, with 137 patients. 65% of them have high cholesterol, and 59% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Szarka's median patient age at 59, with 64% women.
Dr. Szarka's Medicare patients by age, 2024
Dr. Szarka's Medicare patients by sex, 2024
- Women17560%
- Men11540%
Chronic conditions among Dr. Szarka's Medicare patients, 2024
- High cholesterol65%
- High blood pressure59%
- Arthritis49%
- Anxiety31%
- Chronic kidney disease29%
- Ischemic heart disease26%
- Mood disorders26%
- Osteoporosis23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Szarka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lawrence A. Szarka wrote 294 Medicare Part D claims in 2024
In 2024, Dr. Szarka wrote 294 Medicare Part D claims for 101 patients. 63% of them were for generic drugs. CMS names the drug for 193 of them, across 9 drugs with 11 or more claims each, at $43,676 in total drug cost. In 2023, CMS named 97 claims across 4 drugs.
Dr. Szarka's Part D claims by kind of drug, 2024
- Generic185 claims63%
- Brand-name109 claims37%
Dr. Szarka'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. Szarka's Part D claims, 2024
- Antibiotics14%40 of 294 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: 972024: 19399%
Drugs named by CMS: 9 in 2024, 4 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
Dr. Lawrence A. Szarka offers telehealth to Medicare patients
Dr. Szarka accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Szarka as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Lawrence A. Szarka has 26 publications on record
Dmand AI links 26 papers to Dr. Szarka, published from 2008 to 2023. 2015 was the busiest year, with 4. The most frequent topics are Gastrointestinal Diseases, Manometry and Constipation. Dr. Szarka has published most often in Neurogastroenterol Motil. Dr. Szarka's most frequent co-authors are Michael Joseph Camilleri, MD, Christopher J. Gostout, MD and Ernest P. Bouras, MD.
Dr. Szarka's papers by year, 2012 to 2023
Topics Dr. Szarka writes about most
- Gastrointestinal Diseases
- Manometry
- Constipation
- Anal Canal
- Double-Blind Method
- Fecal Incontinence
- Gastric Emptying
- Gastrointestinal Transit
Dr. Szarka's most frequent co-authors
- Michael Joseph Camilleri, MD8 shared papers
- Christopher J. Gostout, MD4 shared papers
- Ernest P. Bouras, MD3 shared papers
Recent publications by Dr. Szarka
Neurogastroenterol Motil
Scand J Gastroenterol
See who Dr. Szarka researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Szarka works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lawrence A. Szarka received $200 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Szarka from 1 drug or device company in 2018. Speaker and faculty fees make up the largest share, 100% of the total. Shire North American Group Inc paid the most, $200.
Companies that paid Dr. Szarka the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Lawrence A. Szarka'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Lawrence A. Szarka
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. Lawrence A. Szarka's NPI number?
Dr. Lawrence A. Szarka's NPI number is 1619949815. It was assigned on February 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lawrence A. Szarka?
Dr. Lawrence A. Szarka is a gastroenterologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Lawrence A. Szarka practice?
Dr. Szarka practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Szarka's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Dr. Szarka to 3 medical groups and 1 hospice.
What is Dr. Lawrence A. Szarka's office phone number?
The practice phone on file for Dr. Szarka is (507) 255-5123.
What is Dr. Lawrence A. Szarka's medical license number?
Dr. Szarka holds Minnesota license 38348, one of the licenses on file in 2 states.
Which states has Dr. Lawrence A. Szarka been licensed in?
Dmand AI has state licenses on file for Dr. Szarka in Minnesota and Arizona.
Which hospitals is Dr. Lawrence A. Szarka affiliated with?
Dr. Szarka practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota. Dr. Szarka is also affiliated with Mayo Clinic Hospital.
What medical group is Dr. Lawrence A. Szarka part of?
Dr. Szarka is linked to Mayo Clinic. Dmand AI links Dr. Szarka to 3 more medical groups.
Does Dr. Lawrence A. Szarka accept Medicare?
Yes. CMS data shows Dr. Szarka billed Medicare for 297 services in 2024, and Dr. Szarka accepts Medicare assignment.
Does Dr. Lawrence A. Szarka offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Szarka as offering telehealth services.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Lawrence A. Szarka see?
CMS counts 290 Medicare patients who saw Dr. Szarka in 2024, with an average age of 72.
What services does Dr. Lawrence A. Szarka bill to Medicare?
In 2024, Dr. Szarka's most billed Medicare services were digestive system test (91122), office visit, new patient (99203) and care management and other visits (99451).
What drugs does Dr. Lawrence A. Szarka prescribe most?
In 2024 Medicare Part D data, Dr. Szarka's most prescribed drugs by claims were Linzess, Omeprazole and Gavilyte-G.
Has Dr. Lawrence A. Szarka received payments from drug or device companies?
CMS Open Payments shows $200 in general payments to Dr. Szarka from 1 company from 2018 to 2018. The largest total came from Shire North American Group Inc.
How long has Dr. Lawrence A. Szarka been practicing?
Dr. Szarka graduated from medical school in 1994, 32 years ago.
Does Dr. Lawrence A. Szarka do research?
Dmand AI links 26 publications to Dr. Szarka, published from 2008 to 2023.
Who does Dr. Lawrence A. Szarka publish with?
Dr. Szarka's most frequent co-authors are Michael Joseph Camilleri, MD (8 shared papers), Christopher J. Gostout, MD (4 shared papers) and Ernest P. Bouras, MD (3 shared papers).
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