Marek Mateusz Kowalski

  • Los Angeles, CA
  • Hospitalist
NPI1720665409PAC ID8325489123
Medicare services, 2024
18
Medicare patients, 2024
28
Publications
4
Hospital affiliations
2
Medical group
1
Practice address
200 Medical Plz, Los Angeles, CA 90024
Practice phone
Call (310) 794-9206
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Peter Morton UCLA Medical Building

Los Angeles, California

See all 4 affiliations

Find Marek Kowalski'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.

View contacts for free

Marek Mateusz Kowalski is a hospitalist in Los Angeles, California

Marek Kowalski practices at Peter Morton UCLA Medical Building in Los Angeles, California.

Marek Kowalski's NPI, 1720665409, was assigned on March 27, 2021. Marek Kowalski graduated from Boston University School Of Medicine in 2021. Marek Kowalski's California license number on file is A186720.

NPI and contact details
Medicare PAC ID
8325489123
NPI enumeration date
March 27, 2021
NPI status
Active
Practice phone
(310) 794-9206
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
31
Medical school graduation
2021

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Marek Mateusz Kowalski practices at Peter Morton UCLA Medical Building in Los Angeles, California

Marek Kowalski's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.

  • Peter Morton UCLA Medical Building
    200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Marek Mateusz Kowalski is affiliated with 3 sites of care and 1 medical group

Marek Kowalski's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Marek Kowalski is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links Marek Kowalski to 1 more hospital, named with a free account.

See all 4 affiliations for Marek Kowalski

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Marek Mateusz Kowalski's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Marek Kowalski practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Peter Morton UCLA Medical BuildingAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Marek Kowalski practices

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

Marek Mateusz Kowalski is one of 3,186 hospitalists in California

Hospitalist is Marek Kowalski's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Marek Kowalski has a license on file in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A186720 · 2023 to 2025 · taxonomy 208M00000X

Hospitalists near Marek Kowalski

Counts of hospitalists 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

Marek Mateusz Kowalski billed Medicare for 18 services in 2024

CMS data shows 18 Medicare services from Marek Kowalski across 1 procedure code in 2024, for 28 Medicare patients. Medicare paid $2,571 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202418
Medicare patients28
Paid by Medicare$2,571
Procedure codes1

Marek Kowalski compared with the California median for hospitalists, 2024

  • Marek Kowalski
  • California median
Medicare services
18vs 43096% below
Medicare patients
28vs 20186% below

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Marek Kowalski'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 Marek Kowalski

Need commercial claims for Marek Kowalski?

Medicare shows one payer. Book a meeting to get commercial claims data for Marek Kowalski and other hospitalists in California.

Book a meeting

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

Marek Mateusz Kowalski treated 28 Medicare patients in 2024, average age 75

CMS counts 28 Medicare patients who saw Marek Kowalski in 2024. The largest group is 75 to 84, with 15 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 3.48, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Marek Kowalski's median patient age at 59, with 48% women.

Medicare patients, 202428
Average age75
Average risk score3.48
Also on Medicaid43%

Marek Kowalski's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Marek Kowalski's Medicare patients by sex, 2024

  • Women1346%
  • Men1554%

Chronic conditions among Marek Kowalski's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes68%
  4. Arthritis61%
  5. Chronic kidney disease54%
  6. Ischemic heart disease54%
  7. Mood disorders54%
  8. Depression50%

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

Marek Kowalski'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

  • Women48%
  • Men52%

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

For MedTech and pharma teams

Find hospitalists like Marek Kowalski by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Marek Mateusz Kowalski has 4 publications on record

Dmand AI links 4 papers to Marek Kowalski, published from 2011 to 2024.

Papers4
Years published2011 to 2024

Recent publications by Marek Kowalski

See all 4 publications and co-authors

See who Marek Kowalski researches with

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

How network discovery works

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

Marek Mateusz Kowalski has 3 awards and honors on record

Dmand AI lists 3 awards for Marek Kowalski, most recently Alpha Omega Alpha Medical Honor Society in 2021.

Awards and honors for Marek Kowalski

  1. 2021
    • Alpha Omega Alpha Medical Honor Society
    • Massachusetts Medical Society Scholar Award
  2. 2018
    • Trainee Professional Development Award

Marek Kowalski's committees and leadership roles

Committee on Publications Massachusetts Medical SocietyStudent Representative
2015 to 2017

Source: Dmand AI Professional Profile Data

Marek Mateusz Kowalski graduated from Boston University School Of Medicine

Marek Kowalski graduated from Boston University School Of Medicine in 2021. Marek Kowalski is a member of AOA.

  1. Medical schoolBoston University School Of Medicine

Source: Dmand AI Professional Profile Data

Marek Mateusz Kowalski accepts plans from 1 insurance carrier

Marek Kowalski is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare

Source: Dmand AI Insurance Network Data

Sources for Marek Mateusz Kowalski'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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 Marek Mateusz Kowalski

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

What is Marek Mateusz Kowalski's NPI number?

Marek Mateusz Kowalski's NPI number is 1720665409. It was assigned on March 27, 2021, and it is active in the NPI Registry.

What does Marek Mateusz Kowalski specialize in?

Marek Mateusz Kowalski is a hospitalist in Los Angeles, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Marek Mateusz Kowalski practice?

Marek Kowalski practices at 200 Medical Plz, Los Angeles, CA 90024. Marek Kowalski's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Marek Kowalski to 1 hospital.

What is Marek Mateusz Kowalski's office phone number?

The practice phone on file for Marek Kowalski is (310) 794-9206.

What is Marek Mateusz Kowalski's medical license number?

Marek Kowalski's California license number on file is A186720.

Which hospitals is Marek Mateusz Kowalski affiliated with?

Marek Kowalski is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Marek Kowalski to 1 more hospital.

What medical group is Marek Mateusz Kowalski part of?

Marek Kowalski is linked to UCLA Medical Group.

Does Marek Mateusz Kowalski accept Medicare?

Yes. CMS data shows Marek Kowalski billed Medicare for 18 services in 2024.

How many Medicare patients does Marek Mateusz Kowalski see?

CMS counts 28 Medicare patients who saw Marek Kowalski in 2024, with an average age of 75.

What services does Marek Mateusz Kowalski bill to Medicare?

In 2024, Marek Kowalski's most billed Medicare services were hospital inpatient care (99223).

Show 4 more questionsShow fewer questions

Where did Marek Mateusz Kowalski go to medical school?

Marek Kowalski graduated from Boston University School Of Medicine in 2021.

How long has Marek Mateusz Kowalski been practicing?

Marek Kowalski graduated from medical school in 2021, 5 years ago.

Does Marek Mateusz Kowalski do research?

Dmand AI links 4 publications to Marek Kowalski, published from 2011 to 2024.

What insurance does Marek Mateusz Kowalski accept?

Marek Kowalski is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

Selling to hospitalist practices?

See hospitalists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)