J Rheumatol
Black or African AmericanDermatologyEthnic and Racial Minorities
Dr. Chay Bae, DO
NPI1861926982PAC ID9739451972
- Medicare services, 2024
- 1,068
- Medicare patients, 2024
- 86
- Part D claims, 2024
- 1,260
- Publications
- 3
- MIPS score, 2024
- 87
- Practice address
- 26538 Moulton Pkwy, Laguna Hills, CA 92653
- Practice phone
- Call (877) 696-3622
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Memorialcare Medical Foundation
Laguna Hills, California
Find Dr. Bae's professional email, personal email and mobile number
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Dr. Chay Bae is a rheumatologist in Laguna Hills, California
Dr. Bae practices at Memorialcare Medical Foundation in Laguna Hills, California.
Dr. Bae's NPI, 1861926982, was assigned on April 14, 2017. Dr. Bae graduated from WesternU College of Osteopathic Medicine of the Pacific in 2017. Dr. Bae holds California license 20A18562.
NPI and contact details
- NPI
- 1861926982NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739451972
- NPI enumeration date
- April 14, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (877) 696-3622
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chay Bae practices at Memorialcare Medical Foundation in Laguna Hills, California
Dr. Bae's primary practice is Memorialcare Medical Foundation, at 26538 Moulton Pkwy, Laguna Hills, CA 92653 in Orange County. The practice phone is (877) 696-3622.
- Memorialcare Medical Foundation26538 Moulton Pkwy, Laguna Hills, CA 92653 · Orange CountyPhone(877) 696-3622
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Chay Bae is affiliated with 2 sites of care and 1 medical group
Dr. Bae's primary practice is Memorialcare Medical Foundation in Laguna Hills, California. The medical group on file is MemorialCare Medical Group. Dmand AI also links Dr. Bae to 1 more group practice or clinic, named with a free account.
Memorialcare Medical FoundationPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Chay Bae's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bae practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorialcare Medical Foundation | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chay Bae is one of 821 rheumatologists in California
Rheumatology is Dr. Bae's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Bae is board certified in internal medicine by the American Board of Internal Medicine. Dr. Bae is licensed in California.
Specialties and state licenses
- Rheumatology, CaliforniaPrimary
Clinical focus
Dmand AI lists arteritis, arthritis, gout, joint pain, lupus, muscle pain, fibromyalgia, and limb pain, osteoporosis and rheumatoid arthritis among the conditions Dr. Bae treats.
Rheumatologists near Dr. Bae
Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.
821rheumatologists in California
3rheumatologists in Laguna Hills
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Chay Bae billed Medicare for 1,068 services in 2024
CMS data shows 1,068 Medicare services from Dr. Bae across 12 procedure codes in 2024, for 86 Medicare patients. Medicare paid $29,400 for them. Every service was in an office.
Medicare services, 20241,068
Medicare patients86
Paid by Medicare$29,400
Procedure codes12
Dr. Bae's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 132024: 5103823%
- Office and hospital visits
- 2023: 2012024: 1981%
- Surgery
- 2023: 1392024: 15310%
- Other services
- 2023: 02024: 107
- Imaging
- 2023: 932024: 1008%
Dr. Bae compared with the California median for rheumatologists, 2024
- Dr. Bae
- California median
- Medicare services
- 1,068vs 90019% above
- Medicare patients
- 86vs 21660% below
- Part D claims
- 1,178vs 96222% above
Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.
Dr. Bae'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. Bae?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bae and other rheumatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chay Bae treated 86 Medicare patients in 2024, average age 73
CMS counts 86 Medicare patients who saw Dr. Bae in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bae's median patient age at 63, with 75% women.
Medicare patients, 202486
Average age73
Average risk score1.09
Dr. Bae's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bae's Medicare patients by sex, 2024
- Women5969%
- Men2731%
Chronic conditions among Dr. Bae's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure70%
- Anxiety30%
- Diabetes26%
- Osteoporosis26%
- Mood disorders24%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bae's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women75%
- Men23%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chay Bae wrote 1,260 Medicare Part D claims in 2024
In 2024, Dr. Bae wrote 1,260 Medicare Part D claims for 244 patients. 86% of them were for generic drugs. CMS names the drug for 1,178 of them, across 22 drugs with 11 or more claims each, at $502,667 in total drug cost. In 2023, CMS named 813 claims across 18 drugs.
Part D claims, 20241,260
Drugs named by CMS22
Total drug cost$502,667
Part D patients244
Dr. Bae's Part D claims by kind of drug, 2024
- Generic1,079 claims86%
- Brand-name170 claims13%
- Other11 claims1%
Dr. Bae'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8132024: 1,17845%
Drugs named by CMS: 22 in 2024, 18 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. Chay Bae scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Bae for performance year 2024, reported as part of a group. Dr. Bae accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Bae's MIPS scores, performance year 2024
- 87of 100Final score
- 81.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 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. Chay Bae has 3 publications on record
Dmand AI links 3 papers to Dr. Bae, published from 2019 to 2021. Dr. Bae's most frequent co-authors are Hussein I. Alahmadi, MD, Michael Cheng, DO and Sheetal Ramesh Desai, MD.
Papers3
Years published2019 to 2021
Dr. Bae's papers by year, 2019 to 2021
Dr. Bae's most frequent co-authors
- Hussein I. Alahmadi, MD1 shared paper
- Michael Cheng, DO1 shared paper
- Sheetal Ramesh Desai, MD1 shared paper
Recent publications by Dr. Bae
Anti-Inflammatory AgentsBetacoronavirusCoronavirus Infections
J Oncol Pharm Pract
Antibodies, Monoclonal, HumanizedAntineoplastic Agents, ImmunologicalBehcet Syndrome
See who Dr. Bae researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bae works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Chay Bae received $736 in industry payments from 2024 to 2025
CMS Open Payments shows 10 general payments to Dr. Bae from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $231.
General payments to Dr. Bae by program year, 2024 to 2025
Companies that paid Dr. Bae 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. Chay Bae graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Bae graduated from WesternU College of Osteopathic Medicine of the Pacific in 2017.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
- Board certified in 2020 - 2025
- Board certified in 2017 - 2020
Source: Dmand AI Professional Profile Data
Dr. Chay Bae accepts plans from 14 insurance carriers
Dr. Bae is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Bae accepts, by number of carriers
- PPO9
- HMO7
- Medicare7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Chay Bae'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 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. Chay Bae
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. Chay Bae's NPI number?
Dr. Chay Bae's NPI number is 1861926982. It was assigned on April 14, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Chay Bae?
Dr. Chay Bae is a rheumatologist in Laguna Hills, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Chay Bae practice?
Dr. Bae practices at 26538 Moulton Pkwy, Laguna Hills, CA 92653. Dr. Bae's primary practice is Memorialcare Medical Foundation in Laguna Hills, California. Dmand AI also links Dr. Bae to 1 group practice or clinic.
What is Dr. Chay Bae's office phone number?
The practice phone on file for Dr. Bae is (877) 696-3622.
What is Dr. Chay Bae's medical license number?
Dr. Bae holds California license 20A18562.
What medical group is Dr. Chay Bae part of?
Dr. Bae is linked to MemorialCare Medical Group.
Does Dr. Chay Bae accept Medicare?
Yes. CMS data shows Dr. Bae billed Medicare for 1,068 services in 2024, and Dr. Bae accepts Medicare assignment.
What is Dr. Chay Bae's MIPS score?
Dr. Bae's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Chay Bae see?
CMS counts 86 Medicare patients who saw Dr. Bae in 2024, with an average age of 73.
Is Dr. Chay Bae board certified?
Yes. Dr. Bae is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Chay Bae bill to Medicare?
In 2024, Dr. Bae's most billed Medicare services were injected or infused drug (J1010), surgery: heart and blood vessels (36415) and office visit, established patient (99214).
Where did Dr. Chay Bae go to medical school?
Dr. Bae graduated from WesternU College of Osteopathic Medicine of the Pacific in 2017.
What drugs does Dr. Chay Bae prescribe most?
In 2024 Medicare Part D data, Dr. Bae's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Methotrexate and Duloxetine HCl.
Has Dr. Chay Bae received payments from drug or device companies?
CMS Open Payments shows $736 in general payments to Dr. Bae from 5 companies from 2024 to 2025. The largest total came from Amgen Inc.
How long has Dr. Chay Bae been practicing?
Dr. Bae graduated from medical school in 2017, 9 years ago.
Does Dr. Chay Bae do research?
Dmand AI links 3 publications to Dr. Bae, published from 2019 to 2021.
Who does Dr. Chay Bae publish with?
Dr. Bae's most frequent co-authors are Hussein I. Alahmadi, MD (1 shared paper), Michael Cheng, DO (1 shared paper) and Sheetal Ramesh Desai, MD (1 shared paper).
What insurance does Dr. Chay Bae accept?
Dr. Bae is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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