Dr. Julie Lynn Marek Bykowski, MD
- Medicare services, 2024
- 10,681
- Medicare patients, 2024
- 2,200
- MIPS score, 2024
- 91
- Hospital affiliations
- 4
- Industry payments
- $183
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Dr. Marek Bykowski'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. Julie Lynn Marek Bykowski is a diagnostic radiologist in San Diego, California
Dr. Marek Bykowski practices at UCSD Hillcrest Medical Center in San Diego, California.
Dr. Marek Bykowski's NPI, 1699988667, was assigned on May 7, 2007. Dr. Marek Bykowski graduated from The Robert Larner, M.D. College of Medicine in 2004. Dr. Marek Bykowski holds California license A96803.
- NPI
- 1699988667NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092993998
- NPI enumeration date
- May 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Julie Lynn Marek Bykowski practices at UCSD Hillcrest Medical Center in San Diego, California
Dr. Marek Bykowski's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Julie Lynn Marek Bykowski is affiliated with 5 sites of care and 1 medical group
Dr. Marek Bykowski's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Marek Bykowski is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Marek Bykowski to 3 more hospitals, each named with a free account.
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 Dr. Julie Lynn Marek Bykowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marek Bykowski practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Julie Lynn Marek Bykowski is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Marek Bykowski's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Marek Bykowski is board certified in diagnostic radiology by the American Board of Radiology. Dr. Marek Bykowski is licensed in California.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
Diagnostic radiologists near Dr. Marek Bykowski
Counts of diagnostic radiologists 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. Julie Lynn Marek Bykowski billed Medicare for 10,681 services in 2024
CMS data shows 10,681 Medicare services from Dr. Marek Bykowski across 26 procedure codes in 2024, for 2,200 Medicare patients. Medicare paid $193,036 for them.
Dr. Marek Bykowski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 5,0832024: 7,68451%
- Imaging
- 2023: 2,2632024: 2,97732%
- Office and hospital visits
- 2023: 282024: 2029%
Where Dr. Marek Bykowski's Medicare services took place, 2024
- In an office7,87074%
- In a facility2,81126%
Dr. Marek Bykowski compared with the California median for diagnostic radiologists, 2024
- Dr. Marek Bykowski
- California median
- Medicare services
- 10,681vs 2,2814.7 times
- Medicare patients
- 2,200vs 1,34663% above
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Marek Bykowski'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marek Bykowski and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Julie Lynn Marek Bykowski treated 2,200 Medicare patients in 2024, average age 72
CMS counts 2,200 Medicare patients who saw Dr. Marek Bykowski in 2024. The largest group is 65 to 74, with 934 patients. 73% of them have high blood pressure, and 73% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.99, 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. Marek Bykowski's median patient age at 59, with 54% women.
Dr. Marek Bykowski's Medicare patients by age, 2024
Dr. Marek Bykowski's Medicare patients by sex, 2024
- Women1,16053%
- Men1,04047%
Chronic conditions among Dr. Marek Bykowski's Medicare patients, 2024
- High blood pressure73%
- High cholesterol73%
- Arthritis56%
- Mood disorders38%
- Depression34%
- Anxiety32%
- Diabetes32%
- Ischemic heart disease31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marek Bykowski'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
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Julie Lynn Marek Bykowski scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Marek Bykowski for performance year 2024, reported as part of a group. Dr. Marek Bykowski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Marek Bykowski's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Julie Lynn Marek Bykowski received $183 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Dr. Marek Bykowski from 1 drug or device company from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Cook Medical LLC paid the most, $183.
General payments to Dr. Marek Bykowski by program year, 2024 to 2025
Companies that paid Dr. Marek Bykowski the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Julie Lynn Marek Bykowski serves on 1 committee
Dr. Marek Bykowski serves on Committee on Appropriateness Criteria Expert Panel on Neurologic Imaging American College of Radiology.
Dr. Marek Bykowski's committees and leadership roles
- Committee on Appropriateness Criteria Expert Panel on Neurologic Imaging American College of RadiologyPanel Chair
- 2015 to present
Source: Dmand AI Professional Profile Data
Dr. Julie Lynn Marek Bykowski graduated from The Robert Larner, M.D. College of Medicine
Dr. Marek Bykowski graduated from The Robert Larner, M.D. College of Medicine in 2004.
- Medical school
- Board certified in diagnostic radiology
- Board certified in neuroradiology
Source: Dmand AI Professional Profile Data
Dr. Julie Lynn Marek Bykowski accepts plans from 9 insurance carriers
Dr. Marek Bykowski is in network with 9 carriers, including Excellus BlueCross BlueShield, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Molina
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- +1 more carriersWith a free account
Plan types Dr. Marek Bykowski accepts, by number of carriers
- Medicare7
- PPO5
- HMO3
- EPO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Julie Lynn Marek Bykowski'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Julie Lynn Marek Bykowski
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. Julie Lynn Marek Bykowski's NPI number?
Dr. Julie Lynn Marek Bykowski's NPI number is 1699988667. It was assigned on May 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Julie Lynn Marek Bykowski?
Dr. Julie Lynn Marek Bykowski is a diagnostic radiologist in San Diego, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Julie Lynn Marek Bykowski practice?
Dr. Marek Bykowski practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Marek Bykowski's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Dr. Marek Bykowski to 3 hospitals.
What is Dr. Julie Lynn Marek Bykowski's office phone number?
The practice phone on file for Dr. Marek Bykowski is (619) 543-6222.
What is Dr. Julie Lynn Marek Bykowski's medical license number?
Dr. Marek Bykowski holds California license A96803.
Which hospitals is Dr. Julie Lynn Marek Bykowski affiliated with?
Dr. Marek Bykowski is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Marek Bykowski to 3 more hospitals.
What medical group is Dr. Julie Lynn Marek Bykowski part of?
Dr. Marek Bykowski is linked to UC San Diego Health.
Does Dr. Julie Lynn Marek Bykowski accept Medicare?
Yes. CMS data shows Dr. Marek Bykowski billed Medicare for 10,681 services in 2024, and Dr. Marek Bykowski accepts Medicare assignment.
What is Dr. Julie Lynn Marek Bykowski's MIPS score?
Dr. Marek Bykowski's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Julie Lynn Marek Bykowski see?
CMS counts 2,200 Medicare patients who saw Dr. Marek Bykowski in 2024, with an average age of 72.
Show 6 more questionsShow fewer questions
Is Dr. Julie Lynn Marek Bykowski board certified?
Yes. Dr. Marek Bykowski is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Julie Lynn Marek Bykowski bill to Medicare?
In 2024, Dr. Marek Bykowski's most billed Medicare services were medical supplies or transport (A9585), diagnostic imaging (70450) and diagnostic imaging (70553).
Where did Dr. Julie Lynn Marek Bykowski go to medical school?
Dr. Marek Bykowski graduated from The Robert Larner, M.D. College of Medicine in 2004.
Has Dr. Julie Lynn Marek Bykowski received payments from drug or device companies?
CMS Open Payments shows $183 in general payments to Dr. Marek Bykowski from 1 company from 2024 to 2025. The largest total came from Cook Medical LLC.
How long has Dr. Julie Lynn Marek Bykowski been practicing?
Dr. Marek Bykowski graduated from medical school in 2004, 22 years ago.
What insurance does Dr. Julie Lynn Marek Bykowski accept?
Dr. Marek Bykowski is in network with 9 carriers, including Excellus BlueCross BlueShield, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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