Physician Profile
Unclaimed ProfileAbout KAISER
Andreas M. Kaiser, M.D. is a healthcare provider in Duarte, CA specialising in colorectal surgery (proctology). Andreas is also listed as specialising in surgery and colon & rectal surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Kaiser specialise in?
Dr. Kaiser is a colorectal surgery (proctology) in Duarte, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “COLORECTAL SURGERY (PROCTOLOGY)”.
NPI registry
Where is Dr. Kaiser located?
Dr. Kaiser is listed at 1500 DUARTE RD, Duarte, CA 91010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Kaiser's phone number?
The number on file is (626) 256-4673. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Kaiser?
Dr. Kaiser's National Provider Identifier is 1720092679. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Kaiser go to medical school?
Dr. Kaiser attended Other, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Kaiser have?
Dr. Kaiser has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Kaiser do most often?
According to Medicare billing data, Dr. Kaiser performs procedures including diagnostic exam of lower portion of large bowel using a flexible endoscope, diagnostic exam of large bowel using a flexible endoscope and repair of abdomen using abdominal lining graft, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Kaiser's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kaiser. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (626) 256-4673
- Email not available
Practice Locations
1500 DUARTE RD
Duarte, CA 91010
Procedures Most Often Billed to Medicare
665 services · 523 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Diagnostic exam of lower portion of large bowel using a flexible endoscope | Procedure | 45330 |
48 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
35 |
| Repair of abdomen using abdominal lining graft | Procedure | 49905 |
18 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
18 |
| Biopsy of lower large bowel using a flexible endoscope | Procedure | 45331 |
14 |
| Partial removal of small and large bowel with attachment of small and large bowel using an endoscope | Procedure | 44205 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
148 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
146 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
98 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
65 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other colorectal surgery specialists in Duarte 1
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1988 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of lower portion of large bowel using a flexible endoscope 7
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.