Dr. Romik Zadorian, MD
- Medicare services, 2024
- 926
- Medicare patients, 2024
- 332
- Part D claims, 2024
- 233
- Hospital affiliations
- 2
- Industry payments
- $189
- Practice address
- 18300 Roscoe Blvd, Northridge, CA 91325
- Practice phone
- Call (818) 885-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Zadorian'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. Romik Zadorian is an emergency medicine physician in Northridge, California
Dr. Zadorian practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health.
Dr. Zadorian's NPI, 1205970696, was assigned on February 18, 2007. Dr. Zadorian graduated from Ross University School of Medicine in 2003. Dr. Zadorian's California license number on file is A102111.
- NPI
- 1205970696NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143317909
- NPI enumeration date
- February 18, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 885-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Romik Zadorian practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California
Dr. Zadorian's primary practice is Dignity Health - Northridge Hospital Medical Center, at 18300 Roscoe Blvd, Northridge, CA 91325 in Los Angeles County. The practice phone is (818) 885-8500.
- Dignity Health - Northridge Hospital Medical Center18300 Roscoe Blvd, Northridge, CA 91325 · Los Angeles CountyPhone(818) 885-8500
Source: Dmand AI Affiliation Data
Dr. Romik Zadorian is affiliated with 3 sites of care and 2 medical groups
Dr. Zadorian's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. The medical group on file is Ridgeline Emergency Physicians Medical Group, Inc. Dmand AI also links Dr. Zadorian to 1 more hospital, 1 home health agency and 1 medical group, 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. Romik Zadorian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zadorian practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Northridge Hospital Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Romik Zadorian is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Zadorian's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Zadorian is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Zadorian's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Maryland license
Emergency medicine physicians near Dr. Zadorian
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. Romik Zadorian billed Medicare for 926 services in 2024
CMS data shows 926 Medicare services from Dr. Zadorian across 21 procedure codes in 2024, for 332 Medicare patients. Medicare paid $60,875 for them.
Dr. Zadorian's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5712024: 34639%
- Tests and treatments
- 2023: 4422024: 25443%
- Lab and pathology
- 2023: 02024: 145
- Drugs given in the office
- 2023: 02024: 80
- Surgery
- 2023: 112024: 63473%
- Imaging
- 2023: 02024: 38
Where Dr. Zadorian's Medicare services took place, 2024
- In an office54058%
- In a facility38642%
Dr. Zadorian compared with the California median for emergency medicine physicians, 2024
- Dr. Zadorian
- California median
- Medicare services
- 926vs 2653.5 times
- Medicare patients
- 332vs 24337% above
- Part D claims
- 104vs 6268% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Zadorian'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. Zadorian?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zadorian 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. Romik Zadorian treated 332 Medicare patients in 2024, average age 77
CMS counts 332 Medicare patients who saw Dr. Zadorian in 2024. The largest group is 75 to 84, with 109 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 57% are also on Medicaid. Their average risk score is 2.69, 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. Zadorian's median patient age at 39, with 55% women.
Dr. Zadorian's Medicare patients by age, 2024
Dr. Zadorian's Medicare patients by sex, 2024
- Women18255%
- Men15045%
Chronic conditions among Dr. Zadorian's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Ischemic heart disease60%
- Diabetes54%
- Anxiety46%
- Mood disorders46%
- Chronic kidney disease43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zadorian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Romik Zadorian wrote 233 Medicare Part D claims in 2024
In 2024, Dr. Zadorian wrote 233 Medicare Part D claims for 134 patients. 94% of them were for generic drugs. CMS names the drug for 104 of them, across 6 drugs with 11 or more claims each, at $957 in total drug cost. In 2023, CMS named 144 claims across 9 drugs.
Dr. Zadorian's Part D claims by kind of drug, 2024
- Generic219 claims94%
- Brand-name14 claims6%
Dr. Zadorian'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. Zadorian's Part D claims, 2024
- Opioids9%20 of 233 claims
- Antibiotics36%84 of 233 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: 1442024: 10428%
Drugs named by CMS: 6 in 2024, 9 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. Romik Zadorian ranks in the 77th percentile for removal of tissue in Medicare
Dr. Zadorian accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 42 procedures of removal of tissue by Dr. Zadorian, more than 77% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Zadorian ranks in Medicare procedure volume
- Removal of tissue
- 77th percentile42 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Romik Zadorian received $189 in industry payments from 2023 to 2025
CMS Open Payments shows 6 general payments to Dr. Zadorian from 3 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $108.
General payments to Dr. Zadorian by program year, 2023 to 2025
Companies that paid Dr. Zadorian the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Romik Zadorian graduated from Ross University School of Medicine
Dr. Zadorian graduated from Ross University School of Medicine in 2003.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Romik Zadorian accepts plans from 11 insurance carriers
Dr. Zadorian is in network with 11 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +3 more carriersWith a free account
Plan types Dr. Zadorian accepts, by number of carriers
- Medicare6
- PPO6
- POS3
- HMO2
- Medicaid2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Romik Zadorian'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 |
| 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. Romik Zadorian
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. Romik Zadorian's NPI number?
Dr. Romik Zadorian's NPI number is 1205970696. It was assigned on February 18, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Romik Zadorian?
Dr. Romik Zadorian is an emergency medicine physician in Northridge, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Romik Zadorian practice?
Dr. Zadorian practices at 18300 Roscoe Blvd, Northridge, CA 91325. Dr. Zadorian's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. Dmand AI also links Dr. Zadorian to 1 hospital, 1 home health agency and 1 medical group.
What is Dr. Romik Zadorian's office phone number?
The practice phone on file for Dr. Zadorian is (818) 885-8500.
What is Dr. Romik Zadorian's medical license number?
Dr. Zadorian's California license number on file is A102111, one of the licenses on file in 2 states.
Which states has Dr. Romik Zadorian been licensed in?
Dmand AI has state licenses on file for Dr. Zadorian in California (2007 to 2025) and Maryland (2007 to 2015).
Which hospitals is Dr. Romik Zadorian affiliated with?
Dr. Zadorian practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California. Dmand AI links Dr. Zadorian to 1 more hospital.
What medical group is Dr. Romik Zadorian part of?
Dr. Zadorian is linked to Ridgeline Emergency Physicians Medical Group, Inc. Dmand AI links Dr. Zadorian to 1 more medical group.
Does Dr. Romik Zadorian accept Medicare?
Yes. CMS data shows Dr. Zadorian billed Medicare for 926 services in 2024, and Dr. Zadorian accepts Medicare assignment.
How many Medicare patients does Dr. Romik Zadorian see?
CMS counts 332 Medicare patients who saw Dr. Zadorian in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
Is Dr. Romik Zadorian board certified?
Yes. Dr. Zadorian is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Romik Zadorian bill to Medicare?
In 2024, Dr. Zadorian's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Where did Dr. Romik Zadorian go to medical school?
Dr. Zadorian graduated from Ross University School of Medicine in 2003.
What drugs does Dr. Romik Zadorian prescribe most?
In 2024 Medicare Part D data, Dr. Zadorian's most prescribed drugs by claims were Prednisone, Azithromycin and Amoxicillin-Clavulanate Potass.
Has Dr. Romik Zadorian received payments from drug or device companies?
CMS Open Payments shows $189 in general payments to Dr. Zadorian from 3 companies from 2023 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Romik Zadorian been practicing?
Dr. Zadorian graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Romik Zadorian accept?
Dr. Zadorian is in network with 11 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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