Dr. Steve James Zielinski, DO
- Medicare services, 2024
- 199
- Medicare patients, 2024
- 196
- Part D claims, 2024
- 309
- MIPS score, 2024
- 99
- Hospital affiliations
- 3
- Practice address
- 751 South Bascom Avenue, San Jose, CA 95128
- Practice phone
- Call (408) 885-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zielinski'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. Steve James Zielinski is an emergency medicine physician in San Jose, California
Dr. Zielinski practices at Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA.
Dr. Zielinski's NPI, 1063544849, was assigned on March 9, 2007. Dr. Zielinski graduated from WesternU College of Osteopathic Medicine of the Pacific in 2002. Dr. Zielinski holds California license 20A9186.
- NPI
- 1063544849NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345339347
- NPI enumeration date
- March 9, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 885-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steve James Zielinski practices at Santa Clara Valley Medical Center in San Jose, California
Dr. Zielinski's primary practice is Santa Clara Valley Medical Center, at 751 South Bascom Avenue, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 885-5000.
- Santa Clara Valley Medical Center751 South Bascom Avenue, San Jose, CA 95128 · Santa Clara CountyPhone(408) 885-5000
Source: Dmand AI Affiliation Data
Dr. Steve James Zielinski is affiliated with 4 sites of care and 7 medical groups
Dr. Zielinski's primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. Dr. Zielinski is also affiliated with Sutter Roseville Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Zielinski to 1 more hospital, 6 medical groups and 1 community health center, 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. Steve James Zielinski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zielinski practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clara Valley Medical Center | Available with a free account |
| +3 more sites and 6 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 County of Santa Clara, CA and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steve James Zielinski is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Zielinski's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Zielinski is board certified in emergency medicine by the AOA Board of Emergency Medicine. Dmand AI has Dr. Zielinski's licenses on file in 4 states: California, Texas, Colorado and Nebraska.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Texas license
- Colorado license
- Nebraska license
Emergency medicine physicians near Dr. Zielinski
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. Steve James Zielinski billed Medicare for 199 services in 2024
CMS data shows 199 Medicare services from Dr. Zielinski across 5 procedure codes in 2024, for 196 Medicare patients. Medicare paid $17,718 for them.
Dr. Zielinski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2912024: 15846%
- Tests and treatments
- 2023: 272024: 4152%
Where Dr. Zielinski's Medicare services took place, 2024
- In an office2412%
- In a facility17588%
Dr. Zielinski compared with the California median for emergency medicine physicians, 2024
- Dr. Zielinski
- California median
- Medicare services
- 199vs 26525% below
- Medicare patients
- 196vs 24319% below
- Part D claims
- 189vs 623.0 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Zielinski'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. Zielinski?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zielinski and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steve James Zielinski treated 196 Medicare patients in 2024, average age 73
CMS counts 196 Medicare patients who saw Dr. Zielinski in 2024. The largest group is 65 to 74, with 91 patients. 74% of them have high cholesterol, and 72% have high blood pressure. 39% are also on Medicaid. Their average risk score is 1.54, 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. Zielinski's median patient age at 45, with 57% women.
Dr. Zielinski's Medicare patients by age, 2024
Dr. Zielinski's Medicare patients by sex, 2024
- Women12564%
- Men7136%
Chronic conditions among Dr. Zielinski's Medicare patients, 2024
- High cholesterol74%
- High blood pressure72%
- Arthritis50%
- Mood disorders40%
- Anxiety38%
- Diabetes36%
- Depression34%
- Chronic kidney disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zielinski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steve James Zielinski wrote 309 Medicare Part D claims in 2024
In 2024, Dr. Zielinski wrote 309 Medicare Part D claims for 171 patients. 94% of them were for generic drugs. CMS names the drug for 189 of them, across 8 drugs with 11 or more claims each, at $1,300 in total drug cost. In 2023, CMS named 40 claims across 3 drugs.
Dr. Zielinski's Part D claims by kind of drug, 2024
- Generic289 claims94%
- Brand-name20 claims6%
Dr. Zielinski'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. Zielinski's Part D claims, 2024
- Opioids10%30 of 309 claims
- Antibiotics28%86 of 309 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: 402024: 189373%
Drugs named by CMS: 8 in 2024, 3 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. Steve James Zielinski scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Zielinski for performance year 2024, reported as part of a group. Dr. Zielinski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Zielinski's MIPS scores, performance year 2024
- 99of 100Final score
- 93.1of 100Quality
- 40of 100Improvement Activities
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
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. Steve James Zielinski received $108 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Zielinski from 2 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Avanir Pharmaceuticals, Inc. paid the most, $56.
Companies that paid Dr. Zielinski the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steve James Zielinski graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Zielinski graduated from WesternU College of Osteopathic Medicine of the Pacific in 2002. Dr. Zielinski is a member of AOA.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Steve James Zielinski accepts plans from 16 insurance carriers
Dr. Zielinski is in network with 16 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Aetna. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Aetna
- Alliant Health Plans
- Elevance
- HCSC
- Molina
- Baylor Scott and White
- +8 more carriersWith a free account
Plan types Dr. Zielinski accepts, by number of carriers
- HMO10
- PPO7
- POS3
- EPO2
- Medicaid2
- Medicare2
Source: Dmand AI Insurance Network Data
Sources for Dr. Steve James Zielinski'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Steve James Zielinski
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. Steve James Zielinski's NPI number?
Dr. Steve James Zielinski's NPI number is 1063544849. It was assigned on March 9, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Steve James Zielinski?
Dr. Steve James Zielinski is an emergency medicine physician in San Jose, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Steve James Zielinski practice?
Dr. Zielinski practices at 751 South Bascom Avenue, San Jose, CA 95128. Dr. Zielinski's primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. Dmand AI also links Dr. Zielinski to 1 hospital, 6 medical groups and 1 community health center.
What is Dr. Steve James Zielinski's office phone number?
The practice phone on file for Dr. Zielinski is (408) 885-5000.
What is Dr. Steve James Zielinski's medical license number?
Dr. Zielinski holds California license 20A9186, one of the licenses on file in 4 states.
Which states has Dr. Steve James Zielinski been licensed in?
Dmand AI has state licenses on file for Dr. Zielinski in California (2005 to 2026), Texas (2024 to 2026), Colorado (2023 to 2025) and Nebraska (2020 to 2022).
Which hospitals is Dr. Steve James Zielinski affiliated with?
Dr. Zielinski practices at Santa Clara Valley Medical Center in San Jose, California. Dr. Zielinski is also affiliated with Sutter Roseville Medical Center. Dmand AI links Dr. Zielinski to 1 more hospital.
What medical group is Dr. Steve James Zielinski part of?
Dr. Zielinski is linked to Vituity. Dmand AI links Dr. Zielinski to 6 more medical groups.
Does Dr. Steve James Zielinski accept Medicare?
Yes. CMS data shows Dr. Zielinski billed Medicare for 199 services in 2024, and Dr. Zielinski accepts Medicare assignment.
What is Dr. Steve James Zielinski's MIPS score?
Dr. Zielinski's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Steve James Zielinski see?
CMS counts 196 Medicare patients who saw Dr. Zielinski in 2024, with an average age of 73.
Is Dr. Steve James Zielinski board certified?
Yes. Dr. Zielinski is board certified in emergency medicine by the AOA Board of Emergency Medicine.
What services does Dr. Steve James Zielinski bill to Medicare?
In 2024, Dr. Zielinski's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
Where did Dr. Steve James Zielinski go to medical school?
Dr. Zielinski graduated from WesternU College of Osteopathic Medicine of the Pacific in 2002.
What drugs does Dr. Steve James Zielinski prescribe most?
In 2024 Medicare Part D data, Dr. Zielinski's most prescribed drugs by claims were Prednisone, Hydrocodone-Acetaminophen and Ondansetron ODT.
Has Dr. Steve James Zielinski received payments from drug or device companies?
CMS Open Payments shows $108 in general payments to Dr. Zielinski from 2 companies from 2016 to 2016. The largest total came from Avanir Pharmaceuticals, Inc.
How long has Dr. Steve James Zielinski been practicing?
Dr. Zielinski graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Steve James Zielinski accept?
Dr. Zielinski is in network with 16 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Aetna. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.
Selling to emergency medicine practices?
See emergency medicine physicians 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