Active NPI 1407873169 Individual Practitioner Male Practitioner

Dr. William C Hallowes , MD

Anesthesiology • Gainesville, GA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Hallowes, MD is a certified Anesthesiology practicing in Gainesville, GA. With approximately 35 years of clinical experience since graduating from Medical College Of Georgia School Of Medicine in 1991, Dr. Hallowes delivers high-quality medical care to the local community at 743 SPRING ST NE.

Dr. Hallowes is affiliated with Anesthesia Associates Of Gainesville, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for procedure in upper abdomen including use of an endoscope, anesthesia for procedure in lower abdominal cavity including use of an endoscope, anesthesia for other procedure on urinary system through urethra. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

743 Spring St Ne

Gainesville, GA 305013715

Telephone 7705327179

Fax 7705341312

Associated Practice Facility / Clinic

🏢 Northeast Georgia Medical Center, Inc. Facility NPI 1427055821

Medicare Profile & Education

Medical School

Medical College Of Georgia School Of Medicine

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Gainesville, GA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +16.0 yrs vs City Avg

City Avg: 19.0 Yrs

State Avg: 25.9 Yrs

Regional Practice Density

58 Specialists

Practicing in Gainesville, GA (1464 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

87.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hallowes (35 Years) 35 Yrs

Gainesville Specialty Average (19.0 Years) 19.0 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
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	29	28	$979.49	$158.11
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	18	18	$861.86	$138.47
00910 Anesthesia for other procedure on urinary system through urethra	16	16	$453.27	$75.60
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	16	16	$419.36	$72.52
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	13	13	$1164.00	$63.01
00811 Anesthesia for procedure on large bowel using an endoscope	13	13	$336.59	$59.65
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	11	11	$679.00	$51.63
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	11	11	$776.00	$66.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	46	46	$388.80	$70.98
00910 Anesthesia for other procedure on urinary system through urethra	24	24	$457.51	$80.11
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	19	19	$1164.00	$61.80
00811 Anesthesia for procedure on large bowel using an endoscope	19	19	$345.06	$61.40
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	15	15	$966.28	$157.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	70	69	$391.55	$73.12
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	50	50	$97.00	$29.53
00811 Anesthesia for procedure on large bowel using an endoscope	38	38	$368.14	$65.59
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	31	31	$776.00	$59.87
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	28	28	$932.92	$155.66
01630 Anesthesia for open or endoscopic procedure at upper arm and shoulder joint including	19	19	$799.47	$132.19
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	18	18	$1164.00	$67.19
00910 Anesthesia for other procedure on urinary system through urethra	18	18	$419.77	$69.85
00400 Anesthesia for procedure on skin of arms, legs, or trunk	17	17	$527.34	$84.17
01402 Anesthesia for procedure for total knee joint replacement	16	16	$989.88	$147.58
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	16	16	$822.59	$137.22
01400 Anesthesia for other procedure or exam of knee joint using an endoscope	15	15	$445.25	$76.94
36620 Insertion of artery tube for blood sampling or infusion through skin	13	12	$291.00	$42.99
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	12	12	$679.00	$46.85
00918 Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope	11	11	$595.13	$101.20
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand	11	11	$408.93	$68.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	36	35	$96.67	$30.52
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	35	35	$404.04	$73.47
00811 Anesthesia for procedure on large bowel using an endoscope	20	20	$378.04	$68.38
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	15	15	$846.18	$152.12
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	15	15	$772.80	$62.29
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand	15	15	$445.04	$75.05
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	14	14	$821.10	$139.21
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	14	14	$1164.00	$69.20
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	13	12	$675.77	$50.04
00910 Anesthesia for other procedure on urinary system through urethra	12	12	$410.23	$71.74
01830 Anesthesia for open or endoscopic procedure on bones of forearm, wrist, or hand	11	11	$539.00	$87.78
01400 Anesthesia for other procedure or exam of knee joint using an endoscope	11	11	$473.15	$82.24
01844 Anesthesia for placement or revision of blood flow shunt	11	11	$886.90	$148.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	54	52	$94.85	$30.74
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	50	50	$374.63	$73.39
00811 Anesthesia for procedure on large bowel using an endoscope	28	27	$377.20	$65.48
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand	25	24	$491.08	$81.92
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	25	25	$962.45	$169.61
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	25	25	$1134.24	$70.46
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	23	22	$574.13	$52.55
01402 Anesthesia for procedure for total knee joint replacement	19	19	$926.76	$165.64
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	16	16	$759.00	$64.26
00910 Anesthesia for other procedure on urinary system through urethra	14	14	$417.57	$73.06
01400 Anesthesia for other procedure or exam of knee joint using an endoscope	14	13	$516.48	$91.89
01630 Anesthesia for open or endoscopic procedure at upper arm and shoulder joint including	14	14	$782.52	$127.31
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	12	12	$755.59	$135.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	48	48	$367.16	$72.64
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	44	44	$92.95	$31.08
00811 Anesthesia for procedure on large bowel using an endoscope	35	35	$345.43	$65.34
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	27	27	$1005.78	$180.57
64450 Injection of anesthetic agent, other peripheral nerve or branch	25	16	$465.00	$32.78
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand	24	24	$569.63	$100.08
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	22	22	$744.00	$66.03
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	19	19	$1116.00	$71.65
01480 Anesthesia for open procedure on bones of lower leg, ankle and foot	17	17	$640.06	$103.78
01400 Anesthesia for other procedure or exam of knee joint using an endoscope	17	17	$530.65	$92.23
00840 Anesthesia for procedure in lower abdominal cavity including use of an endoscope	15	15	$818.40	$147.16
00910 Anesthesia for other procedure on urinary system through urethra	15	15	$486.70	$88.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	86	84	$374.05	$73.78
00811 Anesthesia for procedure on large bowel using an endoscope	43	43	$362.94	$68.21
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	40	40	$91.00	$31.82
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand	32	31	$494.81	$89.72
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	27	27	$728.00	$65.39
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	20	19	$1039.67	$179.98
01630 Anesthesia for open or endoscopic procedure at upper arm and shoulder joint including	18	18	$892.31	$160.92
01400 Anesthesia for other procedure or exam of knee joint using an endoscope	17	17	$607.56	$111.20
00910 Anesthesia for other procedure on urinary system through urethra	14	14	$416.00	$74.25
01480 Anesthesia for open procedure on bones of lower leg, ankle and foot	11	11	$554.27	$95.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00740 Anesthesia for procedure on gastrointestinal tract using an endoscope	54	54	$378.25	$71.60
00810 Anesthesia for procedure on lower intestine using an endoscope	44	44	$405.56	$74.09
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	24	24	$89.00	$30.07
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand	21	21	$584.86	$99.13
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	19	19	$948.55	$163.89
01400 Anesthesia for other procedure or exam of knee joint using an endoscope	19	19	$651.11	$115.55
00910 Anesthesia for other procedure on urinary system through urethra	16	16	$464.47	$85.19
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	14	14	$712.00	$58.44
00400 Anesthesia for procedure on skin of arms, legs, or trunk	14	14	$448.18	$78.63

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License GA 035893

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

000508593G (GA)

Medicaid State Provider ID

000508593J (GA)

Hospital & Practice Group Affiliations

Anesthesia Associates Of Gainesville, Llc

1400 River Pl, Braselton, GA 305175600

Phone: 7705327179

Anesthesia Associates Of Gainesville, Llc

743 Spring St Ne, Gainesville, GA 305013715

Phone: 7705327179

Practice Associates & Co-Workers

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

40 Associated Practitioners

Darryl Blalock , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003083478

Certified Registered Nurse Anesthetist

Rachael Phlipot , CAA

Anesthesiologist Assistant

NPI 1003768425

Dr. Mark Bombulie , MD

Anesthesiology

NPI 1013350263

Doctor of Medicine (M.D.)

Jack Powell , CRNA

Nurse Anesthetist, Certified Registered

NPI 1023489937

Certified Registered Nurse Anesthetist

Amelia Wiggins , CAA

Anesthesiologist Assistant

NPI 1023733227

Dr. Britton Knowles , MD

Anesthesiology

NPI 1033393483

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 April 03, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location April 03, 2012

Registered at 743 SPRING ST NE, GAINESVILLE, GA 305013715 (Tel: 7705327179)

📍

Updated Business Mailing Address April 03, 2012

Registered at PO BOX 1076, GAINESVILLE, GA 305031076 (Tel: 7705327179)

👤

Provider Name / Credentials Updated April 03, 2012

Recorded as WILLIAM HALLOWES, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 03, 2012

Anesthesiology (License #035893 in GA)

🟢

Initial NPI Registration & Enumeration July 17, 2006

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: 1407873169

Entity Type:

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

Enumeration Date: July 17, 2006

Last Update: April 03, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 1076

Gainesville, GA 305031076

Phone: 7705327179

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.