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Active NPI 1295759439 Individual Practitioner Male Practitioner

Dr. Timothy Matthew Ryan , MD

Anesthesiology • Orange, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Timothy Ryan, MD is a certified Anesthesiology practicing in Orange, CA. With approximately 31 years of clinical experience since graduating from University Of Minnesota Medical School in 1995, Dr. Ryan delivers high-quality medical care to the local community at 101 THE CITY DR S.

Dr. Ryan maintains professional affiliations with Regents Of The University Of, Orange Coast Anesthesia Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for procedure on small and large bowel using an endoscope, anesthesia for placement or revision of blood flow shunt. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

101 The City Dr S

Orange, CA 928683201

Telephone 7144568888
Associated Practice Facility / Clinic
🏢 The Department Of Psychiatry Facility NPI 1831159003

Medicare Profile & Education

Medical School

University Of Minnesota Medical School

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Orange, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
31 Yrs +13.0 yrs vs City Avg
City Avg: 18.0 Yrs
State Avg: 27.4 Yrs
Regional Practice Density
269 Specialists

Practicing in Orange, CA (7879 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
95.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ryan (31 Years) 31 Yrs
Orange Specialty Average (18.0 Years) 18.0 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
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope
38 36 $3226.01 $158.58
00813 Anesthesia for procedure on small and large bowel using an endoscope
14 14 $3790.48 $187.82

Medical Specialties & State Licenses

CMS Verified: 2025-11-19
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CA A72433

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
00A724330 (CA)
Commercial Insurance / Payer ID Blue Shield
00A724330 (CA)

Hospital & Practice Group Affiliations

Orange Coast Anesthesia Inc

1420 S Central Ave, Glendale, CA 912042508

Phone: 8185021900

Regents Of The University Of

101 The City Dr S, Orange, CA 928683201

Phone: 7144567004

Secondary Practice Locations

1420 S Central Ave

Glendale, CA 912042508

Phone: 8185022252

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Maryam Ahmadi , MD

Pathology - Clinical Pathology/Laboratory Medicine

NPI 1003497678

Doctor of Medicine (M.D.)

Dr. Theodore Pak , MD, PhD

Internal Medicine - Infectious Disease

NPI 1013476100

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Samuel Park , MD

Anesthesiology - Pain Medicine

NPI 1023174752

Doctor of Medicine (M.D.)

NPI 1033355235

Doctor of Medicine (M.D.)

Erin Thurston

Family Medicine

NPI 1033571153
NPI 1043451073

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

7 Historical Events
📍
Updated Practice Location November 19, 2025

Registered at 101 THE CITY DR S, ORANGE, CA 928683201 (Tel: 7144568888)

NPI Profile Active December 04, 2008

NPI status registered as active in NPPES database

📍
Updated Practice Location December 04, 2008

Registered at 1420 S CENTRAL AVE, GLENDALE, CA 912042508 (Tel: 8185022252)

📍
Updated Business Mailing Address December 04, 2008

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

👤
Provider Name / Credentials Updated December 04, 2008

Recorded as TIMOTHY RYAN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 04, 2008

Anesthesiology (License #A72433 in CA)

🟢
Initial NPI Registration & Enumeration July 27, 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: 1295759439
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 27, 2006
Last Update: November 19, 2025
Sole Proprietor: Yes

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.