Dr. Mark Robert Jajkowski, MD
- Medicare services, 2024
- 188
- Medicare patients, 2024
- 80
- Part D claims, 2024
- 12
- Hospital affiliations
- 3
- Industry payments
- $108,936
- Practice address
- 565 Abbott Road, Buffalo, NY 14220
- Practice phone
- Call (716) 826-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Jajkowski'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. Mark Robert Jajkowski is a cardiothoracic surgeon in Buffalo, New York
Dr. Jajkowski practices at Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System.
Dr. Jajkowski's NPI, 1073628244, was assigned on August 20, 2006. Dr. Jajkowski graduated from University at Buffalo School of Medicine in 1996. Dr. Jajkowski holds New York license 210052.
- NPI
- 1073628244NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365566874
- NPI enumeration date
- August 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 826-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Robert Jajkowski practices at Mercy Hospital of Buffalo in Buffalo, New York
Dr. Jajkowski's primary practice is Mercy Hospital of Buffalo, at 565 Abbott Road, Buffalo, NY 14220 in Erie County. The practice phone is (716) 826-7000.
- Mercy Hospital of Buffalo565 Abbott Road, Buffalo, NY 14220 · Erie CountyPhone(716) 826-7000
Source: Dmand AI Affiliation Data
Dr. Mark Robert Jajkowski is affiliated with 4 sites of care and 5 medical groups
Dr. Jajkowski's primary practice is Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System. Dr. Jajkowski is also affiliated with Kenmore Mercy Hospital. The medical group on file is Mercy Hospital of Buffalo. Dmand AI also links Dr. Jajkowski to 1 more hospital, 4 medical groups and 1 physician office, each named with a free account. Dr. Jajkowski's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Robert Jajkowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jajkowski practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital of Buffalo | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Catholic Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Robert Jajkowski is one of 380 cardiothoracic surgeons in New York
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Jajkowski's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dr. Jajkowski is licensed in New York.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), New YorkPrimary
Cardiothoracic surgeons near Dr. Jajkowski
Counts of cardiothoracic surgeons 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 Robert Jajkowski billed Medicare for 188 services in 2024
CMS data shows 188 Medicare services from Dr. Jajkowski across 8 procedure codes in 2024, for 80 Medicare patients. Medicare paid $12,588 for them.
Dr. Jajkowski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 942024: 16474%
- Surgery
- 2023: 02024: 24
Where Dr. Jajkowski's Medicare services took place, 2024
- In an office8344%
- In a facility10556%
Dr. Jajkowski compared with the New York median for cardiothoracic surgeons, 2024
- Dr. Jajkowski
- New York median
- Medicare services
- 188vs 12057% above
- Medicare patients
- 80vs 9617% below
- Part D claims
- 17vs 166% above
Medians across 326 cardiothoracic surgeons in New York with Dmand AI profiles that report each measure.
Dr. Jajkowski'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. Jajkowski?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Jajkowski and other cardiothoracic surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Robert Jajkowski treated 80 Medicare patients in 2024, average age 73
CMS counts 80 Medicare patients who saw Dr. Jajkowski in 2024. The largest group is 65 to 74, with 43 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.10, 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. Jajkowski's median patient age at 70, with 59% women.
Dr. Jajkowski's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Jajkowski's Medicare patients by sex, 2024
- Women3544%
- Men4556%
Chronic conditions among Dr. Jajkowski's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer54%
- COPD53%
- Ischemic heart disease50%
- Chronic kidney disease45%
- Arthritis41%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Jajkowski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Robert Jajkowski wrote 12 Medicare Part D claims in 2024
In 2024, Dr. Jajkowski wrote 12 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $337 in total drug cost. In 2016, CMS named 27 claims across 1 drug.
Dr. Jajkowski's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 272017: 1737%
Drugs named by CMS: 1 in 2017, 1 in 2016.
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 Robert Jajkowski takes part in Medicare
Dr. Jajkowski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Mark Robert Jajkowski received $108,936 in industry payments from 2016 to 2025
CMS Open Payments shows 255 general payments to Dr. Jajkowski from 17 drug and device companies from 2016 to 2025. Education make up the largest share, 54% of the total. Intuitive Surgical, Inc. paid the most, $98,784.
General payments to Dr. Jajkowski by program year, 2016 to 2025
General payments to Dr. Jajkowski by kind, 2016 to 2025
- Education$59,00054%
- Travel and lodging$33,86731%
- Food and beverage$6,4466%
- Consulting fees$5,3735%
- Speaker and faculty fees$4,2504%
Companies that paid Dr. Jajkowski the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Robert Jajkowski graduated from University at Buffalo School of Medicine
Dr. Jajkowski graduated from University at Buffalo School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Robert Jajkowski'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Mark Robert Jajkowski
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 Robert Jajkowski's NPI number?
Dr. Mark Robert Jajkowski's NPI number is 1073628244. It was assigned on August 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Robert Jajkowski?
Dr. Mark Robert Jajkowski is a cardiothoracic surgeon in Buffalo, New York. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Mark Robert Jajkowski practice?
Dr. Jajkowski practices at 565 Abbott Road, Buffalo, NY 14220. Dr. Jajkowski's primary practice is Mercy Hospital of Buffalo in Buffalo, New York, part of Catholic Health System. Dmand AI also links Dr. Jajkowski to 1 hospital, 4 medical groups and 1 physician office.
What is Dr. Mark Robert Jajkowski's office phone number?
The practice phone on file for Dr. Jajkowski is (716) 826-7000.
What is Dr. Mark Robert Jajkowski's medical license number?
Dr. Jajkowski holds New York license 210052.
Which hospitals is Dr. Mark Robert Jajkowski affiliated with?
Dr. Jajkowski practices at Mercy Hospital of Buffalo in Buffalo, New York. Dr. Jajkowski is also affiliated with Kenmore Mercy Hospital. Dmand AI links Dr. Jajkowski to 1 more hospital.
What medical group is Dr. Mark Robert Jajkowski part of?
Dr. Jajkowski is linked to Mercy Hospital of Buffalo. Dmand AI links Dr. Jajkowski to 4 more medical groups.
Does Dr. Mark Robert Jajkowski accept Medicare?
Yes. CMS data shows Dr. Jajkowski billed Medicare for 188 services in 2024, and Dr. Jajkowski accepts Medicare assignment.
How many Medicare patients does Dr. Mark Robert Jajkowski see?
CMS counts 80 Medicare patients who saw Dr. Jajkowski in 2024, with an average age of 73.
What services does Dr. Mark Robert Jajkowski bill to Medicare?
In 2024, Dr. Jajkowski's most billed Medicare services were hospital inpatient care (99231), office visit, established patient (99213) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Mark Robert Jajkowski go to medical school?
Dr. Jajkowski graduated from University at Buffalo School of Medicine in 1996.
What drugs does Dr. Mark Robert Jajkowski prescribe most?
In 2017 Medicare Part D data, Dr. Jajkowski's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Dr. Mark Robert Jajkowski received payments from drug or device companies?
CMS Open Payments shows $108,936 in general payments to Dr. Jajkowski from 17 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Mark Robert Jajkowski been practicing?
Dr. Jajkowski graduated from medical school in 1996, 30 years ago.
Selling to thoracic surgery (cardiothoracic vascular surgery) practices?
See cardiothoracic surgeons in New York 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