Dr. James David Maciel , MD, MPH
Surgery โข Riverside, CA
5430 Arlington Ave
Riverside, CA 925042505
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 July 16, 2015; this date does not establish years in practice.
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Published CMS data list 2,453 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:
- 11043 โ Removal of muscle and/or tissue, 20.0 sq cm or less: 423 service units.
- 11042 โ Removal of skin and tissue, 20.0 sq cm or less: 359 service units.
- 99348 โ Residence visit for established patient with low level of medical decision making, per day: 350 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 19 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 45 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.
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Published Part D records, 2024:
- Santyl (Collagenase Clostridium Hist.) โ 28 prescription fills, including refills.
- Silver Sulfadiazine โ 17 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
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More Medicare Part B services than 95% of clinicians listed under Surgery in Riverside, CA (2024, 23 clinicians with data). Median for this group: 141. Middle half: 41 to 317.
More Medicare Part B services than 95% 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 7,330 in 2020 to 2,453 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
5430 Arlington Ave
Riverside, CA 925042505
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 La Habra, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; 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 California, Geffen School Of Medicine
2015
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
353 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 $324,133 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 $251,089 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
47 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
$13,655 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 2024
All general payments: $188.02 across 4 records.
By nature of payment
- Food and Beverage: $188.02 across 4 records.
Reporting-company totals
- Smith+Nephew, Inc.: $132.40 across 3 records.
- Gilead Sciences, Inc.: $55.62 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 2024 (published June 30, 2026).
Years since graduation
11 years (graduated 2015)
CMS Doctors and Clinicians data list 2015 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
2015
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. Maciel 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. Maciel 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 Riverside 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 Riverside, CA (2024, 23 clinicians with data). Median for this group: 141. Middle half: 41 to 317.
More Medicare Part B services than 95% 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 Riverside, CA (2024, 23 clinicians with data). Median for this group: $19,371. Middle half: $7,031 to $36,857.
A higher Medicare-allowed amount than 95% 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 Riverside, CA (2024, 23 clinicians with data). Median for this group: $14,633. Middle half: $5,544 to $28,882.
A higher Medicare payment amount than 95% 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 60% of clinicians listed under Surgery in Riverside, CA (2024, 31 clinicians with data). Median for this group: 56. Middle half: 30 to 120.
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
A higher Part D drug cost than 90% of clinicians listed under Surgery in Riverside, CA (2024, 31 clinicians with data). Median for this group: $466. Middle half: $115 to $1,049.
A higher Part D drug cost than 90% of clinicians listed under Surgery in California (2024, 1,327 clinicians with data). Median for this group: $346. Middle half: $126 to $1,126.
53 active clinicians are listed under Surgery with a practice address in Riverside, CA (3,120 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Riverside
1.9% of these 53 clinicians have the CMS telehealth indicator.
66% of these 53 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 decreased 67% from 7,330 in 2020 to 2,453 in 2024.
- 2020: 7,330
- 2021: 501
- 2022: 764
- 2023: 1,914
- 2024: 2,453
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Medicare-allowed amount
Medicare-allowed amount decreased 52% from $670,600 in 2020 to $324,133 in 2024.
- 2020: $670,600
- 2021: $40,031
- 2022: $71,571
- 2023: $246,248
- 2024: $324,133
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Paid by Medicare
Paid by Medicare decreased 53% from $530,789 in 2020 to $251,089 in 2024.
- 2020: $530,789
- 2021: $31,563
- 2022: $56,101
- 2023: $195,554
- 2024: $251,089
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 12 in 2020 to 45 in 2024.
- 2020: 12
- 2021: 15
- 2022: 32
- 2024: 45
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30-day fills
30-day fills went from 12 in 2020 to 47 in 2024.
- 2020: 12
- 2021: 15
- 2022: 34
- 2024: 47
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Part D drug cost
Part D drug cost went from $219 in 2020 to $13,655 in 2024.
- 2020: $219
- 2021: $358
- 2022: $588
- 2024: $13,655
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $121.81 in 2022 to $188.02 in 2024.
- 2022: $121.81
- 2023: $124.99
- 2024: $188.02
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), 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 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $188.02.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Smith+Nephew, Inc. |
Food and Beverage
In-kind items and services
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ACTICOAT 4" X 4" | General | $82.97 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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Yescarta | General | $55.62 |
| Smith+Nephew, Inc. |
Food and Beverage
In-kind items and services
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COLLAGENASE SANTYL | General | $28.95 |
| Smith+Nephew, Inc. |
Food and Beverage
In-kind items and services
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GRAFIX PL | General | $20.48 |
Source: CMS Open Payments, program year 2024, 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 2017โ2023 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, 2018โ2024; 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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11043
Removal of muscle and/or tissue, 20.0 sq cm or less
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423 | 105 | $375.00 | $240.60 |
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11042
Removal of skin and tissue, 20.0 sq cm or less
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359 | 119 | $250.00 | $119.72 |
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99348
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
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350 | 145 | $117.57 | $79.32 |
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17250
Application of chemical to stop tissue regrowth in wound
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253 | 39 | $175.00 | $64.76 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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239 | 92 | $100.00 | $77.94 |
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11046
Removal of muscle and/or tissue, each additional 20.0 sq cm or less
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177 | 38 | $150.00 | $76.29 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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128 | 49 | $100.00 | $77.82 |
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11045
Removal of skin and tissue, each additional 20.0 sq cm or less
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78 | 15 | $67.18 | $42.19 |
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11042
Removal of skin and tissue, 20.0 sq cm or less
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75 | 25 | $250.00 | $53.34 |
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11043
Removal of muscle and/or tissue, 20.0 sq cm or less
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71 | 21 | $375.00 | $152.33 |
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49450
Replacement of stomach or large bowel tube using fluoroscopic guidance with contrast
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63 | 53 | $1000.00 | $662.62 |
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11044
Removal of bone, 20.0 sq cm or less
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59 | 18 | $500.00 | $329.16 |
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99342
Residence visit for new patient with low level of medical decision making, per day, if using time, at least 30 minutes
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43 | 43 | $233.72 | $79.72 |
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99307
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes
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35 | 32 | $150.00 | $42.03 |
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99347
Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes
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29 | 26 | $101.72 | $46.26 |
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99305
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes
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23 | 23 | $281.30 | $136.70 |
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99305
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes
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19 | 18 | $334.21 | $138.46 |
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99307
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes
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16 | 14 | $150.00 | $42.12 |
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10060
Simple or single drainage of skin abscess
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13 | 13 | $200.00 | $90.77 |
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 |
|---|---|---|---|---|---|
| Santyl | Collagenase Clostridium Hist. | 28 | 870 | $13,432.30 | 23 |
| Silver Sulfadiazine | Silver Sulfadiazine | 17 | 259 | $223.14 | 11 |
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: 2025-05-15NUCC 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
I20181217000853
CA
5496090680
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
317 W La Habra Blvd Ste 201
La Habra, CA 906315497
Phone: 5623819349
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 5430 ARLINGTON AVE, RIVERSIDE, CA 925042505 (Tel: 9516892955)
Registered at 5430 ARLINGTON AVE, RIVERSIDE, CA 925042505 (Tel: 9516892955)
Registered at 222 N PACIFIC COAST HWY STE 1420, EL SEGUNDO, CA 902455648 (Tel: 8778783289)
Registered at 222 N PACIFIC COAST HWY STE 1420, EL SEGUNDO, CA 902455648 (Tel: 8778783289)
Surgery (license number reported to NPPES: CA A146204)
Registered at 222 N PACIFIC COAST HWY, EL SEGUNDO, CA 902455648 (Tel: 8778783289)
Registered at 25165 LEMONGRASS ST, CORONA, CA 928833118 (Tel: 7144584617)
Recorded as JAMES MACIEL, MD, MPH
NPI status registered as active in NPPES database
Registered at 1000 W. CARSON ST. BOX 461, HARBOR-UCLA MEDICAL CENTER, TORRANCE, CA 90509 (Tel: 3102222700)
Registered at 1000 W. CARSON ST. BOX 461, HARBOR-UCLA MEDICAL CENTER, TORRANCE, CA 90509 (Tel: 3102222700)
Recorded as JAMES MACIEL
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Riverside
- Dr. Christopher Co, DO
- Dr. Emily Dubina, MD
- Dr. Gustavo Lara, MD
- Dr. Subbu Nagappan, MD
- Dr. Hongphuc Ha, DO
- Dr. Michael Chin, MD
Mailing Address
5430 Arlington Ave
Riverside, CA 925042505
Phone: 9516892955