Active NPI 1023198900 Individual Practitioner Male Practitioner

Dr. John William Longwell , MD

Anesthesiology • Houston, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Longwell, MD is a certified Anesthesiology practicing in Houston, TX. With approximately 28 years of clinical experience since graduating from University Of Texas Medical Branch At Galveston in 1998, Dr. Longwell delivers high-quality medical care to the local community at 1500 CITYWEST BLVD.

Dr. Longwell is affiliated with Utmb Faculty Group Practice and accepts Medicare assignment.

Frequently performed procedures and clinical services include ultrasonic guidance imaging supervision and interpretation for insertion of needle, other procedure on nervous system, destruction of peripheral nerve or branch. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1500 Citywest Blvd
Ste. 300

Houston, TX 77042

Telephone 7136204000

Fax 7134584229

Associated Practice Facility / Clinic

🏢 U. S. Anesthesia Partners Of Texas, P.a., Facility NPI 1548208564

Medicare Profile & Education

Medical School

University Of Texas Medical Branch At Galveston

Graduation Year

1998

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Houston, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

28 Yrs +6.4 yrs vs City Avg

City Avg: 21.6 Yrs

State Avg: 24.9 Yrs

Regional Practice Density

1164 Specialists

Practicing in Houston, TX (4818 Statewide)

Telehealth Adoption Rate

1.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

97.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Longwell (28 Years) 28 Yrs

Houston Specialty Average (21.6 Years) 21.6 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
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	13	13	$1067.00	$29.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	83	77	$1067.00	$30.99
64999 Other procedure on nervous system	54	54	$973.78	$42.15
64640 Destruction of peripheral nerve or branch	45	19	$2142.00	$88.41
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	27	27	$1666.00	$58.20
64450 Injection of anesthetic agent, other peripheral nerve or branch	22	22	$1360.00	$23.32
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	18	18	$1395.00	$67.75
64415 Injection of anesthetic agent, brachial (arm) nerve bundle	15	15	$1904.00	$70.69
00670 Anesthesia for procedure on spine and spinal cord	11	11	$3713.32	$209.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	39	39	$1067.00	$31.02
64999 Other procedure on nervous system	29	29	$951.48	$40.23
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	18	18	$1395.00	$70.84
36620 Insertion of artery tube for blood sampling or infusion through skin	17	17	$714.00	$43.68
64450 Injection of anesthetic agent, other peripheral nerve or branch	15	15	$1813.33	$40.73
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	15	15	$1666.00	$50.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	35	34	$1067.00	$32.32
36620 Insertion of artery tube for blood sampling or infusion through skin	21	21	$714.00	$46.19
99231 Follow-up hospital inpatient care per day, typically 15 minutes	13	13	$299.10	$39.49
64450 Injection of anesthetic agent, other peripheral nerve or branch	13	13	$2092.31	$54.60
93325 Doppler ultrasound study of color-directed heart blood flow, rate, and valve function	12	11	$654.00	$3.25
93320 Ultrasound of heart blood flow, valves and chambers	11	11	$880.00	$18.74
93312 Ultrasound of heart with probe in esophagus, with report	11	11	$1875.00	$112.63

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	27	27	$2020.33	$136.80
00811 Anesthesia for procedure on large bowel using an endoscope	18	18	$1740.00	$122.33
00813 Anesthesia for procedure on small and large bowel using an endoscope	18	18	$2305.50	$166.19
36620 Insertion of artery tube for blood sampling or infusion through skin	18	18	$714.00	$46.85
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	16	16	$1067.00	$33.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	41	39	$1067.00	$32.27
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)	26	24	$1666.00	$68.82
36620 Insertion of artery tube for blood sampling or infusion through skin	18	18	$714.00	$43.56
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	17	17	$1874.29	$135.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	27	27	$714.00	$45.60
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	26	26	$1802.77	$133.72
00811 Anesthesia for procedure on large bowel using an endoscope	18	18	$1818.67	$136.08
00910 Anesthesia for other procedure on urinary system through urethra	12	11	$1984.00	$146.43
00813 Anesthesia for procedure on small and large bowel using an endoscope	12	12	$2170.00	$161.94
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	12	12	$1800.00	$101.05
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	12	12	$10126.67	$850.54
00142 Anesthesia for lens surgery	11	11	$1961.45	$145.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
00142 Anesthesia for lens surgery	49	49	$1836.00	$136.85
00810 Anesthesia for procedure on lower intestine using an endoscope	31	31	$1969.26	$152.06
00740 Anesthesia for procedure on gastrointestinal tract using an endoscope	28	28	$1814.75	$136.36
36620 Insertion of artery tube for blood sampling or infusion through skin	16	15	$714.00	$52.60
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	13	13	$9776.31	$849.08

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License TX L3735

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

1735524 05 (TX)

Medicaid State Provider ID

173552406 (TX)

Commercial Insurance / Payer ID Medicare Railroad

P00461212 (TX)

Commercial Insurance / Payer ID Blue Cross Provider Id

8X8780 (TX)

Commercial Insurance / Payer ID Blue Cross Blue Shield

8AW311 (TX)

Hospital & Practice Group Affiliations

Utmb Faculty Group Practice

301 University Blvd, Galveston, TX 775555302

Phone: 4097722222

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Nicholas Defilippis , MD

Anesthesiology

NPI 1003010661

Doctor of Medicine (M.D.)

Editha Flemming , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003086315

Certified Registered Nurse Anesthetist

Danielle George , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003121963

Certified Registered Nurse Anesthetist

James Trahan , AA

Anesthesiologist Assistant

NPI 1003173485

Rodrique Nelson , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003187600

Certified Registered Nurse Anesthetist

Alyssa Estill , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003306903

Certified Registered Nurse Anesthetist

Career & Practice History Timeline

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

13 Historical Events

📍

Updated Practice Location June 04, 2018

Registered at 1500 CITYWEST BLVD, STE. 300, HOUSTON, TX 77042 (Tel: 7136204000)

📍

Updated Business Mailing Address June 04, 2018

Registered at PO BOX 840853, DALLAS, TX 752840853 (Tel: 9722331999)

✅

NPI Profile Active March 06, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location March 06, 2017

Registered at 1500 CITYWEST BLVD, STE. 300, HOUSTON, TX 770422300 (Tel: 7136204000)

📍

Updated Business Mailing Address March 06, 2017

Registered at PO BOX 650865, SUITE 200, DALLAS, TX 752650865 (Tel: 9722331999)

👤

Provider Name / Credentials Updated March 06, 2017

Recorded as JOHN LONGWELL, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 06, 2017

Anesthesiology (License #L3735 in TX)

✅

NPI Profile Active December 10, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location December 10, 2013

Registered at 2411 FOUNTAIN VIEW DR, SUITE 200, HOUSTON, TX 770574817 (Tel: 7136204000)

📍

Updated Business Mailing Address December 10, 2013

Registered at 2411 FOUNTAIN VIEW DR, SUITE 200, HOUSTON, TX 770574817 (Tel: 7136204000)

👤

Provider Name / Credentials Updated December 10, 2013

Recorded as JOHN LONGWELL, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 10, 2013

Anesthesiology (License #L3735 in TX)

🟢

Initial NPI Registration & Enumeration October 16, 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: 1023198900

Entity Type:

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

Enumeration Date: October 16, 2006

Last Update: June 04, 2018

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 840853

Dallas, TX 752840853

Phone: 9722331999

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.