Active NPI 1659572824 Individual Practitioner Male Practitioner

Dr. Michael A Keller , MD

Colon & Rectal Surgery • San Antonio, TX

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Michael Keller, MD is a certified Colon & Rectal Surgery practicing in San Antonio, TX. With approximately 21 years of clinical experience since graduating from University Of Texas Medical School At Houston in 2005, Dr. Keller delivers high-quality medical care to the local community at 7950 FLOYD CURL DR STE 101.

Dr. Keller is affiliated with Texas Oncology Pa and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, subsequent hospital care with moderate levelof medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

7950 Floyd Curl Dr Ste 101
Medical Tower I

San Antonio, TX 782293916

Telephone 2106140880

Associated Practice Facility / Clinic

🏢 Colon & Rectal Surgical Associates Of San Antonio, P.a. Facility NPI 1639114275

Medicare Profile & Education

Medical School

University Of Texas Medical School At Houston

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in San Antonio, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs -4.8 yrs vs City Avg

City Avg: 25.8 Yrs

State Avg: 22.8 Yrs

Regional Practice Density

22 Specialists

Practicing in San Antonio, TX (213 Statewide)

Telehealth Adoption Rate

13.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

83.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Keller (21 Years) 21 Yrs

San Antonio Specialty Average (25.8 Years) 25.8 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	139	85	$368.00	$120.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	106	106	$565.00	$157.51
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	46	23	$247.00	$75.02
99213 Established patient office or other outpatient visit, typically 15 minutes	17	16	$250.00	$86.64
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	17	$470.00	$124.58
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	16	14	$3232.63	$283.69
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	15	14	$69.00	$16.59
76937 Ultrasonic guidance for blood vessel access	15	14	$57.00	$12.88
46600 Diagnostic examination of the anus using an endoscope	15	12	$450.00	$110.41
45380 Biopsy of large bowel using an endoscope	14	14	$1163.00	$123.72
99441 Telephone medical discussion with physician, 5-10 minutes	13	11	$143.00	$52.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	128	87	$368.00	$120.37
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	86	86	$565.00	$158.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	59	31	$247.00	$76.05
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	49	48	$470.00	$124.89
99213 Established patient office or other outpatient visit, typically 15 minutes	17	15	$250.00	$86.50
46600 Diagnostic examination of the anus using an endoscope	16	11	$450.00	$114.45
45380 Biopsy of large bowel using an endoscope	15	15	$1163.00	$166.31
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	13	13	$4202.00	$298.30
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	13	13	$69.00	$17.17
76937 Ultrasonic guidance for blood vessel access	13	13	$57.00	$13.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	147	95	$368.00	$122.25
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	86	37	$247.00	$68.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	83	83	$565.00	$161.35
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	21	21	$357.00	$98.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	18	$470.00	$128.48
46600 Diagnostic examination of the anus using an endoscope	18	15	$345.50	$119.53
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	16	16	$4202.00	$317.98
99213 Established patient office or other outpatient visit, typically 15 minutes	16	13	$250.00	$87.90
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	16	16	$69.00	$17.75
76937 Ultrasonic guidance for blood vessel access	16	16	$57.00	$13.30
45380 Biopsy of large bowel using an endoscope	14	14	$1135.00	$191.74
44205 Partial removal of small and large bowel with attachment of small and large bowel using an endoscope	12	12	$3813.00	$1269.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	113	75	$368.00	$124.62
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	86	37	$247.00	$69.99
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	76	76	$565.00	$164.44
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	30	30	$470.00	$132.24
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	17	17	$4202.00	$296.18
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	17	17	$69.00	$18.19
76937 Ultrasonic guidance for blood vessel access	17	17	$57.00	$13.63
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	16	15	$357.00	$100.65
99213 Established patient office or other outpatient visit, typically 15 minutes	14	14	$250.00	$89.66
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$947.00	$173.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$565.00	$133.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	108	75	$368.00	$103.54
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	59	59	$565.00	$155.95
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	49	26	$247.00	$71.21
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	37	34	$470.00	$135.47
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	24	24	$4202.00	$313.93
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	24	24	$69.00	$17.76
76937 Ultrasonic guidance for blood vessel access	24	24	$57.00	$13.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$565.00	$118.99
46600 Diagnostic examination of the anus using an endoscope	12	12	$241.00	$100.09
45378 Diagnostic exam of large bowel using a flexible endoscope	11	11	$947.00	$159.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	120	75	$368.00	$101.96
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	91	44	$247.00	$70.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	75	75	$565.00	$157.21
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	61	58	$470.00	$133.26
45378 Diagnostic exam of large bowel using a flexible endoscope	24	24	$947.00	$181.23
91120 Testing of tone and sensation of rectum and anus	14	14	$1307.00	$49.23
91122 Study of rectum sensitivity and function	13	13	$686.69	$89.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	88	39	$219.07	$74.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	68	68	$472.46	$157.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	66	52	$366.73	$101.74
99213 Established patient office or other outpatient visit, typically 15 minutes	60	43	$199.98	$73.59
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	50	48	$585.99	$207.02
46600 Diagnostic examination of the anus using an endoscope	18	17	$241.01	$83.64
45378 Diagnostic exam of large bowel using a flexible endoscope	15	15	$997.72	$186.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	101	71	$193.37	$67.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	90	90	$318.06	$144.46
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	50	22	$189.84	$66.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	38	38	$535.16	$187.70
45378 Diagnostic exam of large bowel using a flexible endoscope	31	31	$1073.80	$164.00
46600 Diagnostic examination of the anus using an endoscope	15	15	$241.02	$80.69

Medical Specialties & State Licenses

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License TX N5765

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

286241902 (TX)

Hospital & Practice Group Affiliations

Texas Oncology Pa

2026 S Jackson St, Jacksonville, TX 757665822

Phone: 9035862456

Texas Oncology Pa

11130 Christus Hls, San Antonio, TX 782513586

Phone: 2102452000

Texas Oncology Pa

7940 Floyd Curl Dr, San Antonio, TX 782293906

Phone: 2106140880

Texas Oncology Pa

7848 Gateway Blvd E, El Paso, TX 799151815

Phone: 9155991313

Texas Oncology Pa

124 E Bandera Rd, Boerne, TX 780062852

Phone: 8302491429

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners

Dr. Gustavo Guajardo Salinas , MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

NPI 1144403387

Doctor of Medicine (M.D.)

Dr. Richard Jackson , MD

Colon & Rectal Surgery

NPI 1164432357

Doctor of Medicine (M.D.)

Kalin Siros , NP-C

Nurse Practitioner - Family

NPI 1558875195

Nurse Practitioner (Certified)

Dr. Clark Kardys , MD

Colon & Rectal Surgery

NPI 1578763009

Doctor of Medicine (M.D.)

Dr. William Bode , MD

Colon & Rectal Surgery

NPI 1891705075

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active May 25, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location May 25, 2011

Registered at 7950 FLOYD CURL DR STE 101, MEDICAL TOWER I, SAN ANTONIO, TX 782293916 (Tel: 2106140880)

📍

Updated Business Mailing Address May 25, 2011

Registered at 7950 FLOYD CURL DR STE 101, MEDICAL TOWER I, SAN ANTONIO, TX 782293916 (Tel: 2106140880)

👤

Provider Name / Credentials Updated May 25, 2011

Recorded as MICHAEL KELLER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 25, 2011

Colon & Rectal Surgery (License #N5765 in TX)

🟢

Initial NPI Registration & Enumeration May 29, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1659572824

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: May 29, 2007

Last Update: May 10, 2018

Sole Proprietor: No

Update or Correct Profile

Mailing Address

7950 Floyd Curl Dr Ste 101, Medical Tower I

San Antonio, TX 782293916

Phone: 2106140880

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.