Dr. Jeffrey Chunya Chao , MD
Surgery โข Orange, CA
101 The City Dr S
Orange, CA 928683201
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on October 2, 2006; this date does not establish years in practice.
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Published CMS data list 69 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99291 โ Critical care: 18 service units.
- 76604 โ Ultrasound scan of chest: 13 service units.
- 76705 โ Limited ultrasound scan of abdomen: 13 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 5 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 25 Medicare Part D prescriptions, including refills, in 2015.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2015. Published rows only; this is not a quality measure.
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Published Part D records, 2015:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) โ 25 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2015. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 85% of clinicians listed under Surgery in Orange, CA (2024, 27 clinicians with data). Median for this group: 187. Middle half: 117 to 347.
Fewer Medicare Part B services than 80% of clinicians listed under Surgery in California (2024, 1,346 clinicians with data). Median for this group: 213. Middle half: 101 to 404.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 24 in 2021 to 69 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2024.
Practice Location & Contact Primary Location
101 The City Dr S
Orange, CA 928683201
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Pensacola, FL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Southern California Permanente Medical Group; University Surgeons Of Orange A Medical Group. 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
University Of Louisville School Of Medicine
2001
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
29 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $5,293 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 โ by Provider and Service, 2024.
Paid by Medicare
About $4,026 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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 โ by Provider and Service, 2024.
30-day fills
25 standardized 30-day fills in 2015
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$573 in 2015
The total cost of these prescriptions in 2015, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2015.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $32.73 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.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
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.
Years since graduation
25 years (graduated 2001)
CMS Doctors and Clinicians data list 2001 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
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.
Enrolled in Medicare (PECOS)
Dr. Chao 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.
Can order Medicare-covered services
CMS lists Dr. Chao 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Orange and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Surgery in Orange, CA (2024, 27 clinicians with data). Median for this group: 187. Middle half: 117 to 347.
Fewer Medicare Part B services than 80% of clinicians listed under Surgery in California (2024, 1,346 clinicians with data). Median for this group: 213. Middle half: 101 to 404.
Medicare-allowed amount
A lower Medicare-allowed amount than 90% of clinicians listed under Surgery in Orange, CA (2024, 27 clinicians with data). Median for this group: $25,873. Middle half: $12,725 to $48,682.
A lower Medicare-allowed amount than 90% of clinicians listed under Surgery in California (2024, 1,346 clinicians with data). Median for this group: $32,453. Middle half: $13,159 to $66,109.
Paid by Medicare
A lower Medicare payment amount than 90% of clinicians listed under Surgery in Orange, CA (2024, 27 clinicians with data). Median for this group: $20,035. Middle half: $9,323 to $37,725.
A lower Medicare payment amount than 90% of clinicians listed under Surgery in California (2024, 1,346 clinicians with data). Median for this group: $24,935. Middle half: $10,148 to $50,637.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Chao are from 2015.
60 active clinicians are listed under Surgery with a practice address in Orange, CA (3,120 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Orange
31.7% of these 60 clinicians have the CMS telehealth indicator.
60% of these 60 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 188% from 24 in 2021 to 69 in 2024.
- 2021: 24
- 2022: 57
- 2023: 79
- 2024: 69
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Medicare-allowed amount
Medicare-allowed amount increased 100% from $2,651 in 2021 to $5,293 in 2024.
- 2021: $2,651
- 2022: $8,617
- 2023: $15,769
- 2024: $5,293
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Paid by Medicare
Paid by Medicare increased 90% from $2,121 in 2021 to $4,026 in 2024.
- 2021: $2,121
- 2022: $6,686
- 2023: $12,455
- 2024: $4,026
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 11% from 28 in 2014 to 25 in 2015.
- 2014: 28
- 2015: 25
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30-day fills
30-day fills decreased 11% from 28 in 2014 to 25 in 2015.
- 2014: 28
- 2015: 25
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Part D drug cost
Part D drug cost went from $377 in 2014 to $573 in 2015.
- 2014: $377
- 2015: $573
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $118.74 in 2019 to $32.73 in 2025.
- 2019: $118.74
- 2020: $12.18
- 2025: $32.73
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2015), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $32.73.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $32.73 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ2023 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 โ by Provider and Service data, 2021โ2024; 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 |
|---|---|---|---|---|
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99291
Critical care, first 30-74 minutes
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18 | 18 | $963.00 | $217.04 |
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76604
Ultrasound scan of chest
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13 | 13 | $126.00 | $26.37 |
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76705
Limited ultrasound scan of abdomen
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13 | 13 | $129.00 | $28.52 |
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76775
Limited ultrasound scan behind abdominal cavity
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13 | 13 | $126.00 | $28.19 |
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93308
Ultrasound of heart, follow-up
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12 | 12 | $118.00 | $25.54 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2015.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 25 | 153 | $572.93 | 25 |
Source: CMS Part D by Provider and Drug, 2015; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2022-11-03NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20131219001396
CA
1355578535
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
Southern California Permanente Medical Group
6640 Alton Pkwy, Irvine, CA 926183734
Phone: 9499325000
Southern California Permanente Medical Group
6650 Alton Pkwy, Irvine, CA 926183734
Phone: 9499325000
Southern California Permanente Medical Group
3430 E La Palma Ave, Anaheim, CA 928062020
Phone: 8889882800
University Surgeons Of Orange A Medical Group
101 The City Dr S, Orange, CA 928683201
Phone: 7146345549
Southern California Permanente Medical Group
6670 Alton Pkwy, Irvine, CA 926183734
Phone: 9499325000
Southern California Permanente Medical Group
3460 E La Palma Ave, Anaheim, CA 928062020
Phone: 7146442010
Southern California Permanente Medical Group
5475 E La Palma Ave, Anaheim, CA 928072075
Phone: 7142796088
Secondary Practice Locations
220 Hovey Rd
Pensacola, FL 325081044
Phone: 8504529484
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Family Nurse Practitioner
Otolaryngology
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Psychiatry
Urology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 101 THE CITY DR S, ORANGE, CA 928683201 (Tel: 7148807812)
Registered at 200 S MANCHESTER AVE STE 300, ORANGE, CA 928683219 (Tel: 7144562986)
Registered at 220 HOVEY ROAD, PENSACOLA, FL 325081047 (Tel: 8504529484)
Registered at 220 HOVEY ROAD, PENSACOLA, FL 325081047 (Tel: 8504529484)
NPI status registered as active in NPPES database
Registered at 34800 BOB WILSON DR, NMCSD GENERAL SURGERY, SAN DIEGO, CA 921341098 (Tel: 6194535465)
Registered at 34800 BOB WILSON DR, NMCSD GENERAL SURGERY, SAN DIEGO, CA 921341098
Recorded as JEFFREY CHAO, MD
Surgery (license number reported to NPPES: CA C54663)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Orange
- Dr. Ninh Nguyen, MD
- Dr. Eric Pham, MD
- Dr. Veeshal Patel, MD
- Dr. Rajesh Khanijou, MD
- Katie Galvin
- Dr. Amy Li, MD
Mailing Address
200 S Manchester Ave Ste 300
Orange, CA 928683219
Phone: 7144562986