Dr. Andreas M. Kaiser, MD
- Medicare services, 2024
- 665
- Medicare patients, 2024
- 282
- Part D claims, 2024
- 53
- Publications
- 46
- MIPS score, 2024
- 93
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope Comprehensive Cancer Center - Duarte
Duarte, California
Find Dr. Kaiser's professional email, personal email and mobile number
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Dr. Andreas M. Kaiser is a colorectal surgeon in Duarte, California
Dr. Kaiser practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Dr. Kaiser's NPI, 1720092679, was assigned on July 28, 2006. Dr. Kaiser graduated from University of Zurich Faculty of Medicine in 1988. Dr. Kaiser holds California license A81359.
- NPI
- 1720092679NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567511249
- NPI enumeration date
- July 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andreas M. Kaiser practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Dr. Kaiser's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope Comprehensive Cancer Center - Duarte1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Andreas M. Kaiser is affiliated with 4 sites of care and 1 medical group
Dr. Kaiser's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is City of Hope. Dmand AI also links Dr. Kaiser to 2 more home health agencies and 1 other site, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andreas M. Kaiser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kaiser practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope Comprehensive Cancer Center - Duarte | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andreas M. Kaiser is one of 187 colorectal surgeons in California
Colon and rectal surgery is Dr. Kaiser's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Kaiser is licensed in California.
Specialties and state licenses
- Colon and rectal surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists colonoscopy, colon removal and hemorrhoids among the conditions Dr. Kaiser treats.
Colorectal surgeons near Dr. Kaiser
Counts of colorectal surgeons 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. Andreas M. Kaiser billed Medicare for 665 services in 2024
CMS data shows 665 Medicare services from Dr. Kaiser across 11 procedure codes in 2024, for 282 Medicare patients. Medicare paid $81,641 for them.
Dr. Kaiser's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5112024: 5212%
- Surgery
- 2023: 1422024: 1441%
Where Dr. Kaiser's Medicare services took place, 2024
- In an office14822%
- In a facility51778%
Dr. Kaiser compared with the California median for colorectal surgeons, 2024
- Dr. Kaiser
- California median
- Medicare services
- 665vs 2702.5 times
- Medicare patients
- 282vs 15582% above
- Part D claims
- 19vs 7173% below
Medians across 175 colorectal surgeons in California with Dmand AI profiles that report each measure.
Dr. Kaiser'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kaiser and other colorectal surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andreas M. Kaiser treated 282 Medicare patients in 2024, average age 72
CMS counts 282 Medicare patients who saw Dr. Kaiser in 2024. The largest group is 65 to 74, with 150 patients. 75% of them have high blood pressure, and 72% have cancer. 34% are also on Medicaid. Their average risk score is 2.44, 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. Kaiser's median patient age at 66, with 51% women.
Dr. Kaiser's Medicare patients by age, 2024
Dr. Kaiser's Medicare patients by sex, 2024
- Women13749%
- Men14551%
Chronic conditions among Dr. Kaiser's Medicare patients, 2024
- High blood pressure75%
- Cancer72%
- High cholesterol72%
- Arthritis46%
- Diabetes33%
- Ischemic heart disease31%
- Anxiety30%
- Chronic kidney disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kaiser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andreas M. Kaiser wrote 53 Medicare Part D claims in 2024
In 2024, Dr. Kaiser wrote 53 Medicare Part D claims for 45 patients. 87% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $1,288 in total drug cost. In 2023, CMS named 16 claims across 1 drug.
Dr. Kaiser's Part D claims by kind of drug, 2024
- Generic46 claims87%
- Brand-name and other7 claims13%
Dr. Kaiser'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: 162024: 1919%
Drugs named by CMS: 1 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. Andreas M. Kaiser scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Kaiser for performance year 2024, reported as part of a group. Dr. Kaiser accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kaiser as offering telehealth. CMS counts 121 procedures of colonoscopy by Dr. Kaiser, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Kaiser's MIPS scores, performance year 2024
- 93of 100Final score
- 78.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Kaiser ranks in Medicare procedure volume
- Colonoscopy
- 84th percentile121 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
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. Andreas M. Kaiser has 46 publications on record
Dmand AI links 46 papers to Dr. Kaiser, published from 2007 to 2025. 2023 was the busiest year, with 7. The most frequent topics are Colectomy, Colorectal Neoplasms and Rectal Neoplasms. Dr. Kaiser has published most often in J Gastrointest Surg. Dr. Kaiser's most frequent co-authors are Yuman Fong, MD, Kurt Allan Melstrom, MD and Laleh Golkar Melstrom, MD.
Dr. Kaiser's papers by year, 2014 to 2025
Topics Dr. Kaiser writes about most
- Colectomy
- Colorectal Neoplasms
- Rectal Neoplasms
- Laparoscopy
- Adenocarcinoma
- Anal Canal
- Anti-Bacterial Agents
- Colonic Neoplasms
Dr. Kaiser's most frequent co-authors
- Yuman Fong, MD8 shared papers
- Kurt Allan Melstrom, MD8 shared papers
- Laleh Golkar Melstrom, MD8 shared papers
Recent publications by Dr. Kaiser
JAMA Netw Open
J Gastrointest Surg
See who Dr. Kaiser researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kaiser works with, so you can find a warm path to the right colorectal surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Andreas M. Kaiser received $43,092 in industry payments from 2016 to 2025
CMS Open Payments shows 120 general payments to Dr. Kaiser from 30 drug and device companies from 2016 to 2025. Education make up the largest share, 68% of the total. Olympus Corporation of the Americas paid the most, $21,490.
General payments to Dr. Kaiser by program year, 2016 to 2025
General payments to Dr. Kaiser by kind, 2016 to 2025
- Education$29,11568%
- Food and beverage$7,71318%
- Travel and lodging$3,1887%
- Speaker and faculty fees$2,7506%
- Consulting fees$3251%
Companies that paid Dr. Kaiser the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andreas M. Kaiser graduated from University of Zurich Faculty of Medicine
Dr. Kaiser graduated from University of Zurich Faculty of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Andreas M. Kaiser accepts plans from 13 insurance carriers
Dr. Kaiser is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Kaiser accepts, by number of carriers
- Medicare8
- PPO8
- HMO5
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Andreas M. Kaiser'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 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. Andreas M. Kaiser
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. Andreas M. Kaiser's NPI number?
Dr. Andreas M. Kaiser's NPI number is 1720092679. It was assigned on July 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Andreas M. Kaiser?
Dr. Andreas M. Kaiser is a colorectal surgeon in Duarte, California. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Andreas M. Kaiser practice?
Dr. Kaiser practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Kaiser's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Kaiser to 2 home health agencies and 1 other site.
What is Dr. Andreas M. Kaiser's office phone number?
The practice phone on file for Dr. Kaiser is (800) 826-4673.
What is Dr. Andreas M. Kaiser's medical license number?
Dr. Kaiser holds California license A81359.
What medical group is Dr. Andreas M. Kaiser part of?
Dr. Kaiser is linked to City of Hope.
Does Dr. Andreas M. Kaiser accept Medicare?
Yes. CMS data shows Dr. Kaiser billed Medicare for 665 services in 2024, and Dr. Kaiser accepts Medicare assignment.
Does Dr. Andreas M. Kaiser offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kaiser as offering telehealth services.
What is Dr. Andreas M. Kaiser's MIPS score?
Dr. Kaiser's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Andreas M. Kaiser see?
CMS counts 282 Medicare patients who saw Dr. Kaiser in 2024, with an average age of 72.
Show 8 more questionsShow fewer questions
What services does Dr. Andreas M. Kaiser bill to Medicare?
In 2024, Dr. Kaiser's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. Andreas M. Kaiser go to medical school?
Dr. Kaiser graduated from University of Zurich Faculty of Medicine in 1988.
What drugs does Dr. Andreas M. Kaiser prescribe most?
In 2024 Medicare Part D data, Dr. Kaiser's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Andreas M. Kaiser received payments from drug or device companies?
CMS Open Payments shows $43,092 in general payments to Dr. Kaiser from 30 companies from 2016 to 2025. The largest total came from Olympus Corporation of the Americas.
How long has Dr. Andreas M. Kaiser been practicing?
Dr. Kaiser graduated from medical school in 1988, 38 years ago.
Does Dr. Andreas M. Kaiser do research?
Dmand AI links 46 publications to Dr. Kaiser, published from 2007 to 2025.
Who does Dr. Andreas M. Kaiser publish with?
Dr. Kaiser's most frequent co-authors are Yuman Fong, MD (8 shared papers), Kurt Allan Melstrom, MD (8 shared papers) and Laleh Golkar Melstrom, MD (8 shared papers).
What insurance does Dr. Andreas M. Kaiser accept?
Dr. Kaiser is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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