Dr. Matthew James Coates , MD
Surgery โข Modesto, CA
1001 Sylvan Ave Ste A
Modesto, CA 953501699
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on September 11, 2008; this date does not establish years in practice.
-
Published CMS data list 875 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.
-
Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 413 service units.
- 99213 โ Established patient outpatient office visit: 320 service units.
- 99223 โ Initial hospital care with moderate level of medical decision making: 41 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 6 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 51 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Ondansetron Odt (Ondansetron) โ 23 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) โ 15 prescription fills, including refills.
- Omeprazole โ 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. 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
-
More Medicare Part B services than 95% of clinicians listed under Surgery in Modesto, CA (2024, 23 clinicians with data). Median for this group: 232. Middle half: 104 to 353.
More Medicare Part B services than 90% 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.
-
Medicare Part B services went from 182 in 2020 to 875 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1001 Sylvan Ave Ste A
Modesto, CA 953501699
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 Stockton, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 4 distinct group names: Central California Bariatric Surgery A Medical Corporation; Sonora Community Hospital; Surgical Associates Inc and 1 more. 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
2008
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
338 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 $91,035 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 $63,581 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
62 standardized 30-day fills in 2024
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
$488 in 2024
The total cost of these prescriptions in 2024, 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, 2024.
Open Payments general payments, program year 2025
All general payments: $330.93 across 13 records.
By nature of payment
- Food and Beverage: $330.93 across 13 records.
Reporting-company totals
- Medtronic, Inc.: $296.85 across 12 records.
- Boston Scientific Corporation: $34.08 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
18 years (graduated 2008)
CMS Doctors and Clinicians data list 2008 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
2008
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
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Coates 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. Coates 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 Modesto and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Surgery in Modesto, CA (2024, 23 clinicians with data). Median for this group: 232. Middle half: 104 to 353.
More Medicare Part B services than 90% 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 higher Medicare-allowed amount than 95% of clinicians listed under Surgery in Modesto, CA (2024, 23 clinicians with data). Median for this group: $26,030. Middle half: $15,860 to $57,754.
A higher Medicare-allowed amount than 80% 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 higher Medicare payment amount than 95% of clinicians listed under Surgery in Modesto, CA (2024, 23 clinicians with data). Median for this group: $20,745. Middle half: $11,287 to $44,607.
A higher Medicare payment amount than 80% 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 prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Surgery in Modesto, CA (2024, 20 clinicians with data). Median for this group: 65. Middle half: 48 to 109.
Close to the middle for clinicians listed under Surgery in California (2024, 1,327 clinicians with data). Median for this group: 54. Middle half: 26 to 105.
Part D drug cost
Close to the middle for clinicians listed under Surgery in Modesto, CA (2024, 20 clinicians with data). Median for this group: $477. Middle half: $176 to $1,142.
Close to the middle for clinicians listed under Surgery in California (2024, 1,327 clinicians with data). Median for this group: $346. Middle half: $126 to $1,126.
35 active clinicians are listed under Surgery with a practice address in Modesto, CA (3,120 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Modesto
20% of these 35 clinicians have the CMS telehealth indicator.
74.3% of these 35 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.
-
Medicare Part B services
Medicare Part B services increased 381% from 182 in 2020 to 875 in 2024.
- 2020: 182
- 2021: 197
- 2022: 226
- 2023: 328
- 2024: 875
-
Medicare-allowed amount
Medicare-allowed amount increased 307% from $22,363 in 2020 to $91,035 in 2024.
- 2020: $22,363
- 2021: $36,133
- 2022: $24,323
- 2023: $35,921
- 2024: $91,035
-
Paid by Medicare
Paid by Medicare increased 291% from $16,247 in 2020 to $63,581 in 2024.
- 2020: $16,247
- 2021: $28,007
- 2022: $18,307
- 2023: $27,602
- 2024: $63,581
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 53% from 108 in 2013 to 51 in 2024.
- 2013: 108
- 2014: 133
- 2015: 23
- 2022: 44
- 2024: 51
-
30-day fills
30-day fills decreased 43% from 108 in 2013 to 62 in 2024.
- 2013: 108
- 2014: 133
- 2015: 23
- 2022: 44
- 2024: 62
-
Part D drug cost
Part D drug cost decreased 93% from $6,518 in 2013 to $488 in 2024.
- 2013: $6,518
- 2014: $15,631
- 2015: $8,261
- 2022: $273
- 2024: $488
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $128.52 in 2021 to $330.93 in 2025.
- 2021: $128.52
- 2022: $316.17
- 2023: $357.15
- 2024: $188.54
- 2025: $330.93
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), 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): 13 records totaling $330.93.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SONICISION | General | $48.86 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $35.04 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
|
CAPTIVATOR II | General | $34.08 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $33.03 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $31.95 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $29.46 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $27.93 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
LIGASURE | General | $24.86 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
LIGASURE | General | $24.52 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $19.05 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
LIGASURE | General | $11.14 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
SIGNIA | General | $5.66 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
LIGASURE | General | $5.35 |
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 2016โ2023 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, 2017โ2024; 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 |
|---|---|---|---|---|
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
413 | 207 | $307.38 | $118.87 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
320 | 114 | $212.42 | $75.51 |
|
99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
|
41 | 39 | $460.80 | $170.08 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
38 | 38 | $402.63 | $168.80 |
|
99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
|
34 | 15 | $346.62 | $116.55 |
|
96372
Injection of drug or substance under skin or into muscle
|
29 | 16 | $48.97 | $14.76 |
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 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Ondansetron Odt | Ondansetron | 23 | 116 | $276.44 | 23 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 15 | 95 | $115.26 | 15 |
| Omeprazole | Omeprazole | 13 | 720 | $96.65 | 12 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-05-07NUCC 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
I20110830000163
CA
5799955738
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
Surgical Associates Inc
1700 Coffee Rd, Modesto, CA 953552803
Phone: 2094042261
Central California Bariatric Surgery A Medical Corporation
1552 Coffee Rd, Modesto, CA 953553122
Phone: 2092487168151
Surgical Associates Inc
1700 Coffee Rd, Modesto, CA 953552803
Sonora Community Hospital
900 Greenley Rd, Sonora, CA 953705287
Phone: 2095363730
Sutter Valley Medical Foundation
600 Coffee Rd, Modesto, CA 953554201
Phone: 2095241211
Secondary Practice Locations
644 E Harding Way Ste B
Stockton, CA 952046103
Phone: 2092487168
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Psychologist - Clinical
Doctor of Psychology (Psy.D.)
Nurse Practitioner - Family
Family Nurse Practitioner
Physician Assistant - Medical
Physician Assistant
Surgery
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Family
Master of Science in Nursing, Advanced Practice Registered Nurse, Family Nurse Practitioner (Board Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1001 SYLVAN AVE STE A, MODESTO, CA 953501699 (Tel: 2092487168)
Registered at 1001 SYLVAN AVE STE A, MODESTO, CA 953501699 (Tel: 2092487168)
NPI status registered as active in NPPES database
Registered at 1552 COFFEE RD STE 200, MODESTO, CA 953553122 (Tel: (209) 248-7168)
Registered at 1552 COFFEE RD STE 200, MODESTO, CA 953553122 (Tel: (209) 248-7168)
Recorded as MATTHEW COATES, M.D.
Surgery (license number reported to NPPES: CA A105497)
NPI status registered as active in NPPES database
Registered at 500 W HOSPITAL RD, FRENCH CAMP, CA 952319693 (Tel: 2094686600)
Registered at PO BOX 1020, STOCKTON, CA 952013120 (Tel: 2094686600)
Recorded as MATTHEW COATES, M.D.
Surgery (license number reported to NPPES: CA A105497)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Modesto
- Dr. Patrick Coates, MD
- Dr. Jose Diego, MD
- Dr. Rachel Teng, MD
- Dr. Felicia Han, DO
- Dr. Saif Ghole, MD
- Dr. Noran Barry, MD
More public profiles in California
Directory navigation, in NPI number order.
- Ellen Park, NP Nurse Practitioner - Primary Care ยท Buena Park
- Mackenzie Van Loon, PA-C Physician Assistant ยท Stanford
- Angelica Malek, DC Chiropractor ยท Huntington Beach
- Seth Judson, MD Internal Medicine - Infectious Disease ยท Los Angeles
- Christina Poloni, DO Surgery - Surgical Oncology ยท Duarte
- Hubert Wang, MD Internal Medicine ยท San Jose
- Paula Trepman, MD Family Medicine ยท Santa Monica
- Jonathan Scott, MD Internal Medicine ยท Palo Alto
- Josefina Torres, MD Family Medicine ยท San Diego
- George Zhang, MD Ophthalmology ยท San Gabriel
- Albert Lee, MD Emergency Medicine ยท Orange
- Stephanie Lee, MD Family Medicine ยท Camarillo
Mailing Address
1001 Sylvan Ave Ste A
Modesto, CA 953501699
Phone: 2092487168