Active NPI 1598786444 Individual Practitioner Male Practitioner

Dr. William Vincent Harrity , MD

Anesthesiology • Pasadena, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Harrity, MD is a certified Anesthesiology practicing in Pasadena, CA. With approximately 41 years of clinical experience since graduating from Wayne State University School Of Medicine in 1985, Dr. Harrity delivers high-quality medical care to the local community at 100 W CALIFORNIA BLVD.

Dr. Harrity maintains professional affiliations with Socal Anesthesia Solutions Inc, Hp Anesthesia Inc, Pacific Valley Medical Group and accepts Medicare assignment.

Frequently performed procedures and clinical services include insertion of artery tube for blood sampling or infusion through skin, ultrasonic guidance for blood vessel access, ultrasonic guidance imaging supervision and interpretation for insertion of needle. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

100 W California Blvd

Pasadena, CA 911053010

Telephone 6263975000

Fax 6263972912

Associated Practice Facility / Clinic

🏢 The Hill Medical Corporation Facility NPI 1154310415

Medicare Profile & Education

Medical School

Wayne State University School Of Medicine

Graduation Year

1985

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Pasadena, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

41 Yrs +17.7 yrs vs City Avg

City Avg: 23.3 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

65 Specialists

Practicing in Pasadena, CA (7879 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

90.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Harrity (41 Years) 41 Yrs

Pasadena Specialty Average (23.3 Years) 23.3 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
36620 Insertion of artery tube for blood sampling or infusion through skin	70	70	$563.19	$44.31
76937 Ultrasonic guidance for blood vessel access	51	43	$189.22	$14.03
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	30	30	$377.00	$30.91
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	19	19	$753.00	$84.87
00560 Anesthesia for procedure on heart and large blood vessels	18	18	$4817.56	$539.82
64420 Injection of anesthetic agent and/or steroid into rib nerve	18	18	$1624.06	$82.42
64999 Other procedure on nervous system	17	17	$1504.00	$54.49
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	15	15	$3995.07	$448.49
00811 Anesthesia for procedure on large bowel using an endoscope	14	14	$1266.21	$142.15
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	14	14	$1378.86	$154.89
00142 Anesthesia for lens surgery	14	14	$1210.57	$135.99
00813 Anesthesia for procedure on small and large bowel using an endoscope	13	13	$1632.54	$183.13
64450 Injection of anesthetic agent, other peripheral nerve or branch	12	11	$922.92	$36.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	45	45	$565.80	$45.56
64999 Other procedure on nervous system	18	18	$1496.00	$57.65
76937 Ultrasonic guidance for blood vessel access	18	18	$190.00	$14.58
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	15	15	$374.60	$31.82
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	14	14	$1873.57	$37.78
00811 Anesthesia for procedure on large bowel using an endoscope	13	13	$1329.05	$157.31
93503 Insertion of tube in pulmonary artery for monitoring	13	13	$1873.08	$89.84
00790 Anesthesia for procedure in upper abdomen including use of an endoscope	12	12	$3030.07	$364.37
64420 Injection of anesthetic agent and/or steroid into rib nerve	12	12	$1878.50	$92.66
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	11	11	$749.73	$86.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	55	54	$531.24	$46.28
76937 Ultrasonic guidance for blood vessel access	25	24	$174.72	$14.53
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	22	22	$357.36	$32.81
64999 Other procedure on nervous system	17	17	$1500.00	$79.22
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	16	16	$707.56	$88.47
93503 Insertion of tube in pulmonary artery for monitoring	14	14	$1721.29	$92.73
64488 Injections of local anesthetic for pain control and abdominal wall analgesia on both sides	12	12	$1775.67	$45.21
00560 Anesthesia for procedure on heart and large blood vessels	12	12	$4339.29	$557.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	49	49	$505.27	$46.20
76937 Ultrasonic guidance for blood vessel access	29	29	$167.97	$14.79
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	25	25	$341.00	$33.35
93503 Insertion of tube in pulmonary artery for monitoring	22	22	$1640.00	$93.25
00811 Anesthesia for procedure on large bowel using an endoscope	16	16	$1173.00	$156.22
64420 Injection of anesthetic agent and/or steroid into rib nerve	15	15	$1482.00	$83.90
00560 Anesthesia for procedure on heart and large blood vessels	14	14	$4464.93	$594.62
64999 Other procedure on nervous system	14	14	$1460.36	$73.59
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	13	13	$682.00	$83.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	41	40	$497.83	$47.95
76937 Ultrasonic guidance for blood vessel access	25	25	$169.84	$15.62
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	20	20	$331.00	$34.47
93503 Insertion of tube in pulmonary artery for monitoring	17	17	$1654.00	$95.69
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	15	15	$657.73	$92.17
93312 Ultrasound of heart with probe in esophagus, with report	15	15	$988.67	$119.95
00811 Anesthesia for procedure on large bowel using an endoscope	13	13	$1147.48	$161.46
64999 Other procedure on nervous system	11	11	$1563.55	$84.84
93325 Doppler ultrasound study of color-directed heart blood flow, rate, and valve function	11	11	$331.00	$3.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	54	52	$478.94	$47.15
76937 Ultrasonic guidance for blood vessel access	23	22	$160.00	$14.59
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	20	20	$315.00	$34.41
93503 Insertion of tube in pulmonary artery for monitoring	18	18	$1588.39	$94.36
00811 Anesthesia for procedure on large bowel using an endoscope	16	16	$1130.06	$164.33
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	15	15	$630.00	$89.46
64421 Injection of anesthetic agent and/or steroid into multiple rib nerves for regional nerve block	12	12	$1260.00	$95.96
64413 Injection of anesthetic agent, neck nerve bundle	11	11	$1603.64	$63.65
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope	11	11	$1068.14	$155.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	50	50	$461.52	$46.94
93503 Insertion of tube in pulmonary artery for monitoring	26	26	$1548.62	$112.47
76937 Ultrasonic guidance for blood vessel access	24	24	$141.88	$15.36
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	22	22	$300.00	$34.77
00567 Anesthesia for heart artery bypass grafting on heart-lung machine	12	12	$6715.75	$946.42
00813 Anesthesia for procedure on small and large bowel using an endoscope	12	12	$1301.25	$197.96
00811 Anesthesia for procedure on large bowel using an endoscope	11	11	$969.55	$146.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36620 Insertion of artery tube for blood sampling or infusion through skin	38	37	$350.53	$54.43
76937 Ultrasonic guidance for blood vessel access	23	23	$115.65	$15.37
93503 Insertion of tube in pulmonary artery for monitoring	16	16	$1156.25	$136.55
00142 Anesthesia for lens surgery	14	14	$720.71	$164.32
00810 Anesthesia for procedure on lower intestine using an endoscope	14	14	$1053.57	$178.28
00670 Anesthesia for procedure on spine and spinal cord	11	11	$3129.55	$601.30
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	11	11	$447.27	$129.12

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CA G58058

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

00G580581 (CA)

Commercial Insurance / Payer ID Blue Shield

00G580581 (CA)

Hospital & Practice Group Affiliations

Pacific Valley Medical Group

333 S Arroyo Pkwy, Pasadena, CA 911052515

Phone: 6264409161

Pacific Valley Medical Group

100 W California Blvd, Pasadena, CA 911053010

Phone: 6264409161

Pacific Valley Medical Group

15107 Vanowen St, Van Nuys, CA 914054542

Phone: 8189022919

Socal Anesthesia Solutions Inc

1401 S Grand Ave, Los Angeles, CA 900153010

Phone: 2137425910

Hp Anesthesia Inc

1300 N Vermont Ave, Los Angeles, CA 900276098

Phone: 2134133000

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Paul Lee , MD

Internal Medicine

NPI 1023561172

Doctor of Medicine (M.D.)

Camille Medina

Nurse Practitioner - Psychiatric/Mental Health

NPI 1033901582

Dr. Johnathan Chou , MD

Student in an Organized Health Care Education/Training Program

NPI 1043621691

Doctor of Medicine (M.D.)

Dr. Jonwei Hwang , MD

Student in an Organized Health Care Education/Training Program

NPI 1053044271

Doctor of Medicine (M.D.)

Jeffrey Robeff , RN

Registered Nurse - Psychiatric/Mental Health, Adult

NPI 1053965087

Registered Nurse

Dr. Chelsea Lam , MD

Student in an Organized Health Care Education/Training Program

NPI 1073121786

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 February 14, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location February 14, 2008

Registered at 100 W CALIFORNIA BLVD, PASADENA, CA 911053010 (Tel: 6263975000)

📍

Updated Business Mailing Address February 14, 2008

Registered at 225 S LAKE AVE, 535, PASADENA, CA 911013005 (Tel: 6267956596)

👤

Provider Name / Credentials Updated February 14, 2008

Recorded as WILLIAM HARRITY, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 14, 2008

Anesthesiology (License #G58058 in CA)

🟢

Initial NPI Registration & Enumeration July 23, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1598786444

Entity Type:

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

Enumeration Date: July 23, 2006

Last Update: February 14, 2008

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

225 S Lake Ave, 535

Pasadena, CA 911013005

Phone: 6267956596

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.