Physician Profile
Unclaimed ProfileAbout KELLER
Michael A Keller, M.D. practises colorectal surgery (proctology) in San Antonio, TX. Michael is a 2005 graduate of University of Texas Medical School at Houston. Michael is also listed as specialising in 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. Keller specialise in?
Dr. Keller is a colorectal surgery (proctology) in San Antonio, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “COLORECTAL SURGERY (PROCTOLOGY)”.
NPI registry
Where is Dr. Keller located?
Dr. Keller is listed at 7950 FLOYD CURL DR STE 101 MEDICAL TOWER I, San Antonio, TX 78229. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Keller's phone number?
The number on file is (210) 614-0880. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Keller's NPI number?
Dr. Keller's National Provider Identifier is 1659572824. 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. Keller go to medical school?
Dr. Keller attended University of Texas Medical School at Houston, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Keller been practising?
Dr. Keller has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Keller do most often?
According to Medicare billing data, Dr. Keller performs procedures including insertion of central venous tube with port, diagnostic exam of anus using an endoscope and biopsy of large bowel using a flexible endoscope; reads or performs imaging such as fluoroscopic guidance for insertion or removal of central vein access device and ultrasonic guidance for blood vessel access, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Keller confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Keller. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (210) 614-0880
- Email not available
Practice Locations
7950 FLOYD CURL DR STE 101 MEDICAL TOWER I
San Antonio, TX 78229
Procedures Most Often Billed to Medicare
413 services · 326 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of central venous tube with port (5 years or older) | Procedure | 36561 |
16 |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
15 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
14 |
| Fluoroscopic guidance for insertion or removal of central vein access device | Imaging | 77001 |
15 |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
139 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
106 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
46 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
17 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
17 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
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.
Other colorectal surgery specialists at this location 2
Same specialty, same street address — most likely the same department or group.
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 San Antonio 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Texas Medical School at Houston 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at University of Texas Medical School at Houston 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of central venous tube with port (5 years or older) 8
Providers in TX 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.