J Ultrasound Med
Dr. Mason Shieh, MBA, MD
- Medicare services, 2024
- 778
- Medicare patients, 2024
- 456
- Part D claims, 2024
- 365
- Publications
- 6
- MIPS score, 2024
- 97
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shieh'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. Mason Shieh is an emergency medicine physician in Orange, California
Dr. Shieh practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Shieh's NPI, 1467718486, was assigned on April 3, 2012. Dr. Shieh graduated from University of California, Irvine, California College of Medicine in 2012. Dr. Shieh holds California license A134394.
- NPI
- 1467718486NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092027292
- NPI enumeration date
- April 3, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mason Shieh practices at UCI Health - Orange in Orange, California
Dr. Shieh's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. Mason Shieh is affiliated with 3 sites of care and 2 medical groups
Dr. Shieh's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dr. Shieh is also affiliated with UCI Health - Lakewood. The medical group on file is Vituity. Dmand AI also links Dr. Shieh to 1 more hospital 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. Mason Shieh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shieh practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
| +2 more sites and 1 medical group | 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 UC Irvine and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mason Shieh is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Shieh's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Shieh is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Shieh is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Shieh
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. Mason Shieh billed Medicare for 778 services in 2024
CMS data shows 778 Medicare services from Dr. Shieh across 4 procedure codes in 2024, for 456 Medicare patients. Medicare paid $75,225 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Shieh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2782024: 47872%
- Tests and treatments
- 2023: 722024: 300317%
Dr. Shieh compared with the California median for emergency medicine physicians, 2024
- Dr. Shieh
- California median
- Medicare services
- 778vs 2652.9 times
- Medicare patients
- 456vs 24388% above
- Part D claims
- 220vs 623.5 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Shieh'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. Shieh?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shieh 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. Mason Shieh treated 456 Medicare patients in 2024, average age 73
CMS counts 456 Medicare patients who saw Dr. Shieh in 2024. The largest group is 65 to 74, with 161 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 68% are also on Medicaid. Their average risk score is 3.08, 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. Shieh's median patient age at 55, with 56% women.
Dr. Shieh's Medicare patients by age, 2024
Dr. Shieh's Medicare patients by sex, 2024
- Women24253%
- Men21447%
Chronic conditions among Dr. Shieh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes59%
- Arthritis51%
- Chronic kidney disease51%
- Heart failure47%
- Mood disorders45%
- Ischemic heart disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shieh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mason Shieh wrote 365 Medicare Part D claims in 2024
In 2024, Dr. Shieh wrote 365 Medicare Part D claims for 230 patients. 95% of them were for generic drugs. CMS names the drug for 220 of them, across 11 drugs with 11 or more claims each, at $2,379 in total drug cost. In 2023, CMS named 197 claims across 9 drugs.
Dr. Shieh's Part D claims by kind of drug, 2024
- Generic347 claims95%
- Brand-name and other18 claims5%
Dr. Shieh'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. Shieh's Part D claims, 2024
- Opioids15%54 of 365 claims
- Antibiotics36%130 of 365 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: 1972024: 22012%
Drugs named by CMS: 11 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. Mason Shieh scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Shieh for performance year 2024, reported as part of a group. Dr. Shieh accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Shieh's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 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
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. Mason Shieh has 6 publications on record
Dmand AI links 6 papers to Dr. Shieh, published from 2009 to 2017. Dr. Shieh's most frequent co-authors are Bassil Aish, MD, Arash Anavim, MD and Evan Michael Bishop-Rimmer, MD.
Dr. Shieh's papers by year, 2009 to 2017
Dr. Shieh's most frequent co-authors
- Bassil Aish, MD1 shared paper
- Arash Anavim, MD1 shared paper
- Evan Michael Bishop-Rimmer, MD1 shared paper
Recent publications by Dr. Shieh
Am J Emerg Med
J Plast Reconstr Aesthet Surg
Int J Electron Healthc
See who Dr. Shieh researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shieh works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mason Shieh received $392 in industry payments from 2016 to 2023
CMS Open Payments shows 3 general payments to Dr. Shieh from 3 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $168.
General payments to Dr. Shieh by program year, 2016 to 2023
Companies that paid Dr. Shieh the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mason Shieh graduated from University of California, Irvine, California College of Medicine
Dr. Shieh graduated from University of California, Irvine, California College of Medicine in 2012.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Mason Shieh accepts plans from 2 insurance carriers
Dr. Shieh is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- CMS Medicare
- Molina
Source: Dmand AI Insurance Network Data
Sources for Dr. Mason Shieh'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Mason Shieh
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. Mason Shieh's NPI number?
Dr. Mason Shieh's NPI number is 1467718486. It was assigned on April 3, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Mason Shieh?
Dr. Mason Shieh is an emergency medicine physician in Orange, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mason Shieh practice?
Dr. Shieh practices at 101 City Drive South, Orange, CA 92868. Dr. Shieh's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Dr. Shieh to 1 hospital and 1 medical group.
What is Dr. Mason Shieh's office phone number?
The practice phone on file for Dr. Shieh is (714) 456-7890.
What is Dr. Mason Shieh's medical license number?
Dr. Shieh holds California license A134394.
Which hospitals is Dr. Mason Shieh affiliated with?
Dr. Shieh practices at UCI Health - Orange in Orange, California. Dr. Shieh is also affiliated with UCI Health - Lakewood. Dmand AI links Dr. Shieh to 1 more hospital.
What medical group is Dr. Mason Shieh part of?
Dr. Shieh is linked to Vituity. Dmand AI links Dr. Shieh to 1 more medical group.
Does Dr. Mason Shieh accept Medicare?
Yes. CMS data shows Dr. Shieh billed Medicare for 778 services in 2024, and Dr. Shieh accepts Medicare assignment.
What is Dr. Mason Shieh's MIPS score?
Dr. Shieh's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mason Shieh see?
CMS counts 456 Medicare patients who saw Dr. Shieh in 2024, with an average age of 73.
Show 9 more questionsShow fewer questions
Is Dr. Mason Shieh board certified?
Yes. Dr. Shieh is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Mason Shieh bill to Medicare?
In 2024, Dr. Shieh's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. Mason Shieh go to medical school?
Dr. Shieh graduated from University of California, Irvine, California College of Medicine in 2012.
What drugs does Dr. Mason Shieh prescribe most?
In 2024 Medicare Part D data, Dr. Shieh's most prescribed drugs by claims were Ondansetron ODT, Cephalexin and Hydrocodone-Acetaminophen.
Has Dr. Mason Shieh received payments from drug or device companies?
CMS Open Payments shows $392 in general payments to Dr. Shieh from 3 companies from 2016 to 2023. The largest total came from Inari Medical, Inc.
How long has Dr. Mason Shieh been practicing?
Dr. Shieh graduated from medical school in 2012, 14 years ago.
Does Dr. Mason Shieh do research?
Dmand AI links 6 publications to Dr. Shieh, published from 2009 to 2017.
Who does Dr. Mason Shieh publish with?
Dr. Shieh's most frequent co-authors are Bassil Aish, MD (1 shared paper), Arash Anavim, MD (1 shared paper) and Evan Michael Bishop-Rimmer, MD (1 shared paper).
What insurance does Dr. Mason Shieh accept?
Dr. Shieh is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. 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