Dig Dis Sci
Dr. Christopher Lee Paiji, MD
- Medicare services, 2024
- 41
- Medicare patients, 2024
- 64
- Part D claims, 2024
- 113
- Publications
- 9
- MIPS score, 2024
- 100
- 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. Paiji's professional email, personal email and mobile number
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Dr. Christopher Lee Paiji is a gastroenterologist in Orange, California
Dr. Paiji practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Paiji's NPI, 1720519010, was assigned on March 27, 2017. Dr. Paiji graduated from UC Irvine School of Medicine in 2017. Dr. Paiji holds California license A170265.
- NPI
- 1720519010NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698043859
- NPI enumeration date
- March 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Lee Paiji practices at UCI Health - Orange in Orange, California
Dr. Paiji'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. Christopher Lee Paiji is affiliated with 1 site of care and 1 medical group
Dr. Paiji's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is UCI Health Physicians.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher Lee Paiji's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Paiji practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Christopher Lee Paiji is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Paiji's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Paiji is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Paiji is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Gastroenterologists near Dr. Paiji
Counts of gastroenterologists 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. Christopher Lee Paiji billed Medicare for 41 services in 2024
CMS data shows 41 Medicare services from Dr. Paiji across 3 procedure codes in 2024, for 64 Medicare patients. Medicare paid $3,254 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Paiji's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 02024: 14
- Office and hospital visits
- 2023: 122024: 1417%
- Surgery
- 2023: 02024: 13
Dr. Paiji compared with the California median for gastroenterologists, 2024
- Dr. Paiji
- California median
- Medicare services
- 41vs 58693% below
- Medicare patients
- 64vs 30279% below
- Part D claims
- 85vs 38078% below
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Paiji'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. Paiji?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Paiji and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Lee Paiji treated 64 Medicare patients in 2024, average age 71
CMS counts 64 Medicare patients who saw Dr. Paiji in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 36% are also on Medicaid. Their average risk score is 1.85, 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. Paiji's median patient age at 64, with 55% women.
Dr. Paiji's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Paiji's Medicare patients by sex, 2024
- Women3453%
- Men3047%
Chronic conditions among Dr. Paiji's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Diabetes45%
- Arthritis44%
- Chronic kidney disease38%
- Ischemic heart disease38%
- Mood disorders34%
- Depression33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Paiji's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
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. Christopher Lee Paiji wrote 113 Medicare Part D claims in 2024
In 2024, Dr. Paiji wrote 113 Medicare Part D claims for 67 patients. 90% of them were for generic drugs. CMS names the drug for 85 of them, across 5 drugs with 11 or more claims each, at $7,425 in total drug cost. In 2023, CMS named 15 claims across 1 drug.
Dr. Paiji's Part D claims by kind of drug, 2024
- Generic102 claims90%
- Brand-name11 claims10%
Dr. Paiji'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. Paiji's Part D claims, 2024
- Antibiotics19%22 of 113 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: 152024: 85467%
Drugs named by CMS: 5 in 2024, 1 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. Christopher Lee Paiji scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Paiji for performance year 2024, reported through an alternative payment model (APM). Dr. Paiji accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Paiji as offering telehealth. CMS counts 406 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Paiji, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Paiji's MIPS scores, performance year 2024
- 100of 100Final score
- 83.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Paiji ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 98th percentile406 procedures
- Colonoscopy
- 84th percentile121 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Christopher Lee Paiji has 9 publications on record
Dmand AI links 9 papers to Dr. Paiji, published from 2013 to 2023. 2020 was the busiest year, with 2. The most frequent topics are Cholangiopancreatography, Endoscopic Retrograde and Magnetic Resonance Imaging. Dr. Paiji has published most often in Endoscopy. Dr. Paiji's most frequent co-authors are Mouen A. Khashab, MD, Omid Sanaei, MD and Vivek Kumbhari, MD.
Dr. Paiji's papers by year, 2013 to 2023
Topics Dr. Paiji writes about most
- Cholangiopancreatography, Endoscopic Retrograde
- Magnetic Resonance Imaging
Dr. Paiji's most frequent co-authors
Recent publications by Dr. Paiji
See who Dr. Paiji researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Paiji works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher Lee Paiji received $62,707 in industry payments from 2023 to 2025
CMS Open Payments shows 71 general payments to Dr. Paiji from 9 drug and device companies from 2023 to 2025. Grants make up the largest share, 80% of the total. Boston Scientific Corporation paid the most, $56,527.
General payments to Dr. Paiji by program year, 2023 to 2025
General payments to Dr. Paiji by kind, 2023 to 2025
- Grants$50,00080%
- Travel and lodging$5,3339%
- Food and beverage$4,5837%
- Consulting fees$2,7904%
Companies that paid Dr. Paiji 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. Christopher Lee Paiji graduated from UC Irvine School of Medicine
Dr. Paiji graduated from UC Irvine School of Medicine in 2017. Dr. Paiji is a member of AOA.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Christopher Lee Paiji accepts plans from 12 insurance carriers
Dr. Paiji is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +4 more carriersWith a free account
Plan types Dr. Paiji accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Christopher Lee Paiji'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)Doctors and Clinicians Utilization Data (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. Christopher Lee Paiji
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. Christopher Lee Paiji's NPI number?
Dr. Christopher Lee Paiji's NPI number is 1720519010. It was assigned on March 27, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Lee Paiji?
Dr. Christopher Lee Paiji is a gastroenterologist in Orange, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Christopher Lee Paiji practice?
Dr. Paiji practices at 101 City Drive South, Orange, CA 92868. Dr. Paiji's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine.
What is Dr. Christopher Lee Paiji's office phone number?
The practice phone on file for Dr. Paiji is (714) 456-7890.
What is Dr. Christopher Lee Paiji's medical license number?
Dr. Paiji holds California license A170265.
Which hospitals is Dr. Christopher Lee Paiji affiliated with?
Dr. Paiji practices at UCI Health - Orange in Orange, California.
What medical group is Dr. Christopher Lee Paiji part of?
Dr. Paiji is linked to UCI Health Physicians.
Does Dr. Christopher Lee Paiji accept Medicare?
Yes. CMS data shows Dr. Paiji billed Medicare for 41 services in 2024, and Dr. Paiji accepts Medicare assignment.
Does Dr. Christopher Lee Paiji offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Paiji as offering telehealth services.
What is Dr. Christopher Lee Paiji's MIPS score?
Dr. Paiji's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Christopher Lee Paiji see?
CMS counts 64 Medicare patients who saw Dr. Paiji in 2024, with an average age of 71.
Is Dr. Christopher Lee Paiji board certified?
Yes. Dr. Paiji is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Christopher Lee Paiji bill to Medicare?
In 2024, Dr. Paiji's most billed Medicare services were diagnostic imaging (74328), hospital inpatient care (99222) and surgery: digestive system (43259).
Where did Dr. Christopher Lee Paiji go to medical school?
Dr. Paiji graduated from UC Irvine School of Medicine in 2017.
What drugs does Dr. Christopher Lee Paiji prescribe most?
In 2024 Medicare Part D data, Dr. Paiji's most prescribed drugs by claims were Pantoprazole Sodium, Sucralfate and Ciprofloxacin HCl.
Has Dr. Christopher Lee Paiji received payments from drug or device companies?
CMS Open Payments shows $62,707 in general payments to Dr. Paiji from 9 companies from 2023 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Christopher Lee Paiji been practicing?
Dr. Paiji graduated from medical school in 2017, 9 years ago.
Does Dr. Christopher Lee Paiji do research?
Dmand AI links 9 publications to Dr. Paiji, published from 2013 to 2023.
Who does Dr. Christopher Lee Paiji publish with?
Dr. Paiji's most frequent co-authors are Mouen A. Khashab, MD (4 shared papers), Omid Sanaei, MD (4 shared papers) and Vivek Kumbhari, MD (3 shared papers).
What insurance does Dr. Christopher Lee Paiji accept?
Dr. Paiji is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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