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Dr. Patrick Harold Kwan , MD

Anesthesiology • Greenbrae, CA

Active NPI 1164468286 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

250 Bon Air Rd
Greenbrae, CA 949041702

Call 4159274070 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

250 Bon Air Rd

Greenbrae, CA 949041702

Telephone 4159274070
Organization at the Same NPPES Address or Phone
Marin Community Clinic Facility NPI 1124021738

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 2 distinct additional practice-address records in San Francisco, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Permanente Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Warren Alpert Medical School Of Brown University

Graduation Year

1989

Medicare-allowed amount

About $18,867 in 2020

The total amount Medicare approved for these services in 2020. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020.

Paid by Medicare

About $15,848 in 2020

The part of the Medicare-allowed amount that Medicare itself paid in 2020, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $105.89 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

37 years (graduated 1989)

CMS Doctors and Clinicians data list 1989 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Kwan has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Kwan as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Greenbrae and California

Billing and prescribing volume is not a quality rating.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Dr. Kwan are from 2020.

46 active clinicians are listed under Anesthesiology with a practice address in Greenbrae, CA (7,574 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Greenbrae

0% of these 46 clinicians have the CMS telehealth indicator.

73.9% of these 46 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $105.89.

Manufacturer Payment Nature Product Type Amount ($)
Pacira Pharmaceuticals Incorporated
Food and Beverage
In-kind items and services
Exparel General $105.89

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2020.

CMS Part B · Data Year 2020
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2019 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2020; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
00811 Anesthesia for other procedure on large bowel using an endoscope
27 27 $798.52 $158.89
00142 Anesthesia for lens surgery
22 22 $780.00 $151.67
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
19 19 $822.11 $167.36
00812 Anesthesia for exam of colon using an endoscope
19 19 $717.89 $118.40
36620 Insertion of artery tube for blood sampling or infusion through skin
15 15 $330.00 $49.24
00813 Anesthesia for procedure on small and large bowel using an endoscope
13 13 $930.77 $187.69
01922 Anesthesia for x-ray or radiation therapy
11 11 $1150.00 $239.25

Source: CMS Part B by Provider and Service, 2020; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-03-28
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES CA G71487

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
00G714872 (CA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY

Medicare Enrollment ID

I20070825000147

Enrollment State Jurisdiction

CA

PECOS Control ID

9436241197

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Permanente Medical Group Inc

401 Bicentennial Way, Santa Rosa, CA 954032149

Phone: 7073934000

Secondary Practice Locations

450 Sutter St Rm 500

San Francisco, CA 941083907

Phone: 4153939600

450 Sutter St Rm 400

San Francisco, CA 941083907

Phone: 4153939600

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
Dr. Benjamin Hu , MD

Anesthesiology

NPI 1487691143

Doctor of Medicine (M.D.)

Dr. Wendy Woo , MD

Anesthesiology

NPI 1497914006

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

12 Historical Events
📍
Updated Practice Location March 29, 2024

Registered at 250 BON AIR RD, GREENBRAE, CA 949041702 (Tel: 4159274070)

✅
NPI Profile Active December 27, 2017

NPI status registered as active in NPPES database

📍
Updated Business Mailing Address December 27, 2017

Registered at 3242 COBBLESTONE DR, SANTA ROSA, CA 954041738 (Tel: 7073213918)

📍
Updated Practice Location December 27, 2017

Registered at 3325 CHANATE RD, SANTA ROSA, CA 954041707 (Tel: 7075764000)

👤
Provider Name / Credentials Updated December 27, 2017

Recorded as PATRICK KWAN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 27, 2017

Anesthesiology (license number reported to NPPES: CA G71487)

✅
NPI Profile Active July 13, 2007

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) July 13, 2007

Registered at 3325 CHANATE RD, SANTA ROSA, CA 954041707 (Tel: 7075764000)

📍
Business Mailing Address (Initial Record) July 13, 2007

Registered at 3325 CHANATE RD, SANTA ROSA, CA 954041707 (Tel: 7075764000)

👤
Provider Name / Credentials (Initial Record) July 13, 2007

Recorded as PATRICK KWAN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 13, 2007

Anesthesiology (license number reported to NPPES: CA G71487)

🟢
Initial NPI Registration & Enumeration June 20, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1164468286
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 20, 2006
Last Update: March 29, 2024
Sole Proprietor: Yes

Other Anesthesiology Specialists in Greenbrae

All Anesthesiology Specialists in Greenbrae

Mailing Address

3242 Cobblestone Dr

Santa Rosa, CA 954041738

Phone: 7073213918

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.