Dr. Mark D. Weissman, MD

  • Shawano, WI
  • Emergency medicine physician
NPI1366426538PAC ID9133022890
Medicare services, 2024
194
Medicare patients, 2024
180
Part D claims, 2024
321
Publications
10
Hospital affiliations
3
Practice address
100 County Rd B, Shawano, WI 54166
Practice phone
Call (715) 526-2111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

ThedaCare Medical Center-Shawano

Hospital · Shawano, Wisconsin

See all 16 affiliations

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Dr. Mark D. Weissman is an emergency medicine physician in Shawano, Wisconsin

Dr. Weissman practices at ThedaCare Medical Center-Shawano in Shawano, Wisconsin, part of Froedtert ThedaCare Health.

Dr. Weissman's NPI, 1366426538, was assigned on December 1, 2005. Dr. Weissman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990. Dr. Weissman holds Wisconsin license 33134020.

NPI and contact details
Medicare PAC ID
9133022890
NPI enumeration date
December 1, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(715) 526-2111
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
62
Medical school graduation
1990

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

Dr. Mark D. Weissman practices at ThedaCare Medical Center-Shawano in Shawano, Wisconsin

Dr. Weissman's primary practice is ThedaCare Medical Center-Shawano, at 100 County Rd B, Shawano, WI 54166 in Shawano County. The practice phone is (715) 526-2111.

Source: Dmand AI Affiliation Data

Dr. Mark D. Weissman is affiliated with 4 sites of care and 12 medical groups

Dr. Weissman's primary practice is ThedaCare Medical Center-Shawano in Shawano, Wisconsin, part of Froedtert ThedaCare Health. Dr. Weissman is also affiliated with ThedaCare Medical Center-Waupaca. The medical group on file is ThedaCare Medical Center-Shawano. Dmand AI also links Dr. Weissman to 1 more hospital, 11 medical groups and 1 group practice or clinic, each named with a free account. Dr. Weissman's employer is on file too: a hospital.

See all 16 affiliations for Dr. Weissman

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

Dmand AI tracks the EHR system at Dr. Mark D. Weissman's practice

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

EHR by site
SiteEHR vendor and product
ThedaCare Medical Center-ShawanoAvailable with a free account
+3 more sites and 11 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Weissman practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Froedtert ThedaCare Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Mark D. Weissman is one of 1,211 emergency medicine physicians in Wisconsin

Emergency medicine is Dr. Weissman's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Weissman's licenses on file in 2 states: Wisconsin and Indiana.

Specialties and state licenses

  • Emergency medicine, WisconsinPrimaryLicense 33134020 · taxonomy 207P00000X
  • Indiana licenseLicense 01040184A

Emergency medicine physicians near Dr. Weissman

Counts of emergency medicine physicians 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 D. Weissman billed Medicare for 194 services in 2024

CMS data shows 194 Medicare services from Dr. Weissman across 3 procedure codes in 2024, for 180 Medicare patients. Medicare paid $20,674 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024194
Medicare patients180
Paid by Medicare$20,674
Procedure codes3

Dr. Weissman's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4522024: 17362%
Tests and treatments
2023: 882024: 2176%

Dr. Weissman compared with the Wisconsin median for emergency medicine physicians, 2024

  • Dr. Weissman
  • Wisconsin median
Medicare services
194vs 24621% below
Medicare patients
180vs 22119% below
Part D claims
198vs 573.5 times

Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.

Dr. Weissman'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 Dr. Weissman

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

Dr. Mark D. Weissman treated 180 Medicare patients in 2024, average age 75

CMS counts 180 Medicare patients who saw Dr. Weissman in 2024. The largest group is 75 to 84, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.23, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Weissman's median patient age at 43, with 56% women.

Medicare patients, 2024180
Average age75
Average risk score2.23
Also on Medicaid25%

Dr. Weissman's Medicare patients by age, 2024

Dr. Weissman's Medicare patients by sex, 2024

  • Women10257%
  • Men7843%

Chronic conditions among Dr. Weissman's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis58%
  4. Ischemic heart disease48%
  5. Chronic kidney disease47%
  6. Anxiety46%
  7. Heart failure44%
  8. Atrial fibrillation41%

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

Dr. Weissman's patients across all payers

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

Patient panel by age, all payers

Median age 43

Patient panel by sex, all payers

  • Women56%
  • Men44%

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

Dr. Mark D. Weissman wrote 321 Medicare Part D claims in 2024

In 2024, Dr. Weissman wrote 321 Medicare Part D claims for 202 patients. 89% of them were for generic drugs. CMS names the drug for 198 of them, across 11 drugs with 11 or more claims each, at $2,977 in total drug cost. In 2023, CMS named 109 claims across 6 drugs.

Part D claims, 2024321
Drugs named by CMS11
Total drug cost$2,977
Part D patients202

Dr. Weissman's Part D claims by kind of drug, 2024

  • Generic285 claims89%
  • Brand-name and other36 claims11%

Dr. Weissman'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. Weissman's Part D claims, 2024

  • Opioids14%44 of 321 claims
  • Antibiotics20%63 of 321 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: 1092024: 19882%

Drugs named by CMS: 11 in 2024, 6 in 2023.

See all prescribing by Dr. Weissman

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. Mark D. Weissman takes part in Medicare

Dr. Weissman 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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Dr. Mark D. Weissman has 10 publications on record

Dmand AI links 10 papers to Dr. Weissman, published from 2012 to 2024. The most frequent topics are Primary Health Care, Pediatrics and District of Columbia. Dr. Weissman has published most often in Pediatrics. Dr. Weissman's most frequent co-authors are Rachel Y. Moon, MD, Eric R. Anderson, DO and Matthew G. Biel, MD.

Papers10
Years published2012 to 2024

Dr. Weissman's papers by year, 2012 to 2024

Topics Dr. Weissman writes about most

  • Primary Health Care
  • Pediatrics
  • District of Columbia
  • Quality Improvement
  • Hospitals, Pediatric
  • Mass Screening

Dr. Weissman's most frequent co-authors

Recent publications by Dr. Weissman

See all 10 publications and co-authors

See who Dr. Weissman researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weissman works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

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

Dr. Mark D. Weissman received $246 in industry payments from 2017 to 2023

CMS Open Payments shows 7 general payments to Dr. Weissman from 4 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 94% of the total. Intersect ENT, Inc. paid the most, $140.

General payments to Dr. Weissman by program year, 2017 to 2023

General payments to Dr. Weissman by kind, 2017 to 2023

$246in total
  • Food and beverage$23094%
  • Education$166%

Companies that paid Dr. Weissman the most, 2017 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Weissman

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

Dr. Mark D. Weissman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)

Dr. Weissman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.

  1. Medical schoolUniversity of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)

Source: Dmand AI Professional Profile Data

Sources for Dr. Mark D. Weissman'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)
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)
Training, board certification and membershipsDmand AI Professional Profile Data
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 Dr. Mark D. Weissman

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 D. Weissman's NPI number?

Dr. Mark D. Weissman's NPI number is 1366426538. It was assigned on December 1, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark D. Weissman?

Dr. Mark D. Weissman is an emergency medicine physician in Shawano, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Mark D. Weissman practice?

Dr. Weissman practices at 100 County Rd B, Shawano, WI 54166. Dr. Weissman's primary practice is ThedaCare Medical Center-Shawano in Shawano, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Weissman to 1 hospital, 11 medical groups and 1 group practice or clinic.

What is Dr. Mark D. Weissman's office phone number?

The practice phone on file for Dr. Weissman is (715) 526-2111.

What is Dr. Mark D. Weissman's medical license number?

Dr. Weissman holds Wisconsin license 33134020, one of the licenses on file in 2 states.

Which states has Dr. Mark D. Weissman been licensed in?

Dmand AI has state licenses on file for Dr. Weissman in Wisconsin and Indiana.

Which hospitals is Dr. Mark D. Weissman affiliated with?

Dr. Weissman practices at ThedaCare Medical Center-Shawano in Shawano, Wisconsin. Dr. Weissman is also affiliated with ThedaCare Medical Center-Waupaca. Dmand AI links Dr. Weissman to 1 more hospital.

What medical group is Dr. Mark D. Weissman part of?

Dr. Weissman is linked to ThedaCare Medical Center-Shawano. Dmand AI links Dr. Weissman to 11 more medical groups.

Does Dr. Mark D. Weissman accept Medicare?

Yes. CMS data shows Dr. Weissman billed Medicare for 194 services in 2024, and Dr. Weissman accepts Medicare assignment.

How many Medicare patients does Dr. Mark D. Weissman see?

CMS counts 180 Medicare patients who saw Dr. Weissman in 2024, with an average age of 75.

Show 7 more questionsShow fewer questions

What services does Dr. Mark D. Weissman bill to Medicare?

In 2024, Dr. Weissman's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).

Where did Dr. Mark D. Weissman go to medical school?

Dr. Weissman graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.

What drugs does Dr. Mark D. Weissman prescribe most?

In 2024 Medicare Part D data, Dr. Weissman's most prescribed drugs by claims were Baclofen, Ondansetron ODT and Hydrocodone-Acetaminophen.

Has Dr. Mark D. Weissman received payments from drug or device companies?

CMS Open Payments shows $246 in general payments to Dr. Weissman from 4 companies from 2017 to 2023. The largest total came from Intersect ENT, Inc.

How long has Dr. Mark D. Weissman been practicing?

Dr. Weissman graduated from medical school in 1990, 36 years ago.

Does Dr. Mark D. Weissman do research?

Dmand AI links 10 publications to Dr. Weissman, published from 2012 to 2024.

Who does Dr. Mark D. Weissman publish with?

Dr. Weissman's most frequent co-authors are Rachel Y. Moon, MD (2 shared papers), Eric R. Anderson, DO (1 shared paper) and Matthew G. Biel, MD (1 shared paper).

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