Dr. James Aaron Leonard , MD
Anesthesiology โข Newark, DE
4755 Ogletown-Stanton Rd
Newark, DE 19718
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 March 27, 2009; this date does not establish years in practice.
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Published CMS data list 197 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:
- 00410 โ Anesthesia for procedure to correct abnormal heart rhythm: 76 service units.
- 93312 โ Ultrasound of heart with probe in esophagus, with report: 50 service units.
- 93325 โ Ultrasound of heart with color-depicted blood flow, rate and valve function: 50 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 4 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 3,172 Medicare Part D prescriptions, including refills, in 2013.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2013. Published rows only; this is not a quality measure.
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Published Part D records, 2013:
- Clozapine โ 235 prescription fills, including refills.
- Lactulose โ 215 prescription fills, including refills.
- Levothyroxine Sodium โ 141 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2013. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 79 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Anesthesiology in Newark, DE (2024, 12 clinicians with data). Median for this group: 80. Middle half: 26 to 199.
Close to the middle for Medicare Part B services among clinicians listed under Anesthesiology in Delaware (2024, 64 clinicians with data). Median for this group: 195. Middle half: 68 to 392.
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 572 in 2020 to 197 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
4755 Ogletown-Stanton Rd
Newark, DE 19718
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Anesthesia Services Pa. 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
Rutgers R W Johnson Medical School (Cam/new Bruns/pisc)
2009
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
148 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 $13,490 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 $10,614 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
3,172 standardized 30-day fills in 2013
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
$331,923 in 2013
The total cost of these prescriptions in 2013, 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, 2013.
Open Payments general payments, program year 2025
All general payments: $150.84 across 4 records.
By nature of payment
- Food and Beverage: $150.84 across 4 records.
Reporting-company totals
- Abbott Laboratories: $75.00 across 1 record.
- ABIOMED: $58.95 across 2 records.
- Chiesi USA, Inc.: $16.89 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
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 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
2009
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. Leonard 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. Leonard 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 Newark and Delaware
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Anesthesiology in Newark, DE (2024, 12 clinicians with data). Median for this group: 80. Middle half: 26 to 199.
Close to the middle for clinicians listed under Anesthesiology in Delaware (2024, 64 clinicians with data). Median for this group: 195. Middle half: 68 to 392.
Medicare-allowed amount
Close to the middle for clinicians listed under Anesthesiology in Newark, DE (2024, 12 clinicians with data). Median for this group: $10,223. Middle half: $3,496 to $15,971.
Close to the middle for clinicians listed under Anesthesiology in Delaware (2024, 64 clinicians with data). Median for this group: $17,332. Middle half: $6,773 to $38,625.
Paid by Medicare
Close to the middle for clinicians listed under Anesthesiology in Newark, DE (2024, 12 clinicians with data). Median for this group: $8,079. Middle half: $2,493 to $13,007.
Close to the middle for clinicians listed under Anesthesiology in Delaware (2024, 64 clinicians with data). Median for this group: $13,654. Middle half: $5,378 to $30,671.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Leonard are from 2013.
22 active clinicians are listed under Anesthesiology with a practice address in Newark, DE (124 in Delaware).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Newark
0% of these 22 clinicians have the CMS telehealth indicator.
77.3% of these 22 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 66% from 572 in 2020 to 197 in 2024.
- 2020: 572
- 2021: 533
- 2022: 291
- 2023: 209
- 2024: 197
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Medicare-allowed amount
Medicare-allowed amount decreased 85% from $90,168 in 2020 to $13,490 in 2024.
- 2020: $90,168
- 2021: $72,640
- 2022: $32,126
- 2023: $13,961
- 2024: $13,490
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Paid by Medicare
Paid by Medicare decreased 85% from $71,631 in 2020 to $10,614 in 2024.
- 2020: $71,631
- 2021: $58,148
- 2022: $25,601
- 2023: $11,175
- 2024: $10,614
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2013 only.
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30-day fills
CMS data for 30-day fills are available for 2013 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2013 only.
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $23.95 in 2019 to $150.84 in 2025.
- 2019: $23.95
- 2025: $150.84
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2013), 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 $150.84.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $75.00 |
| ABIOMED |
Food and Beverage
In-kind items and services
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โ | General | $39.62 |
| ABIOMED |
Food and Beverage
In-kind items and services
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โ | General | $19.33 |
| Chiesi USA, Inc. |
Food and Beverage
Cash or cash equivalent
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CLEVIPREX | General | $16.89 |
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 |
|---|---|---|---|---|
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00410
Anesthesia for procedure to correct abnormal heart rhythm
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76 | 74 | $785.31 | $98.40 |
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93312
Ultrasound of heart with probe in esophagus, with report
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50 | 50 | $600.00 | $99.85 |
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93325
Ultrasound of heart with color-depicted blood flow, rate and valve function
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50 | 50 | $500.00 | $2.89 |
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36620
Insertion of artery tube for blood sampling or infusion through skin
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21 | 21 | $675.00 | $41.65 |
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 2013.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Clozapine | Clozapine | 235 | 2,519 | $7,513.83 | โ |
| Lactulose | Lactulose | 215 | 2,276 | $3,003.75 | 26 |
| Levothyroxine Sodium | Levothyroxine Sodium | 141 | 2,379 | $1,072.81 | 15 |
| Abilify | Aripiprazole | 135 | 1,987 | $64,300.10 | โ |
| Atorvastatin Calcium | Atorvastatin Calcium | 125 | 1,961 | $4,131.48 | 13 |
| Divalproex Sodium | Divalproex Sodium | 120 | 3,421 | $4,094.46 | 15 |
| Quetiapine Fumarate | Quetiapine Fumarate | 94 | 2,557 | $9,358.71 | โ |
| Benztropine Mesylate | Benztropine Mesylate | 76 | 2,192 | $860.93 | 12 |
| Chlorhexidine Gluconate | Chlorhexidine Gluconate | 63 | 893 | $390.36 | โ |
| Fluvoxamine Maleate | Fluvoxamine Maleate | 60 | 985 | $872.93 | โ |
| Clonazepam | Clonazepam | 59 | 1,770 | $838.38 | 14 |
| Lorazepam | Lorazepam | 56 | 1,112 | $799.85 | 20 |
| Invega | Paliperidone | 56 | 810 | $29,460.68 | โ |
| Olanzapine Odt | Olanzapine | 55 | 1,547 | $25,024.85 | โ |
| Haloperidol | Haloperidol | 53 | 1,267 | $1,942.22 | โ |
| Metformin Hcl | Metformin Hcl | 52 | 1,524 | $801.96 | โ |
| Ranitidine Hcl | Ranitidine Hcl | 51 | 1,530 | $415.70 | โ |
| Gemfibrozil | Gemfibrozil | 46 | 1,317 | $1,277.53 | โ |
| Famotidine | Famotidine | 46 | 1,309 | $438.57 | โ |
| Warfarin Sodium | Warfarin Sodium | 45 | 338 | $129.24 | โ |
| Sertraline Hcl | Sertraline Hcl | 42 | 610 | $359.82 | โ |
| Olanzapine | Olanzapine | 42 | 1,081 | $14,846.02 | โ |
| Citalopram Hbr | Citalopram Hydrobromide | 41 | 1,130 | $798.44 | โ |
| Ibuprofen | Ibuprofen | 41 | 285 | $173.43 | 13 |
| Clobetasol Propionate | Clobetasol Propionate | 38 | 214 | $1,012.43 | โ |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2013; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207L00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20170621000311
DE
6204082571
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
Anesthesia Services Pa
501 W 14th St, Wilmington, DE 198011013
Phone: 3024773300
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 Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Anesthesiology
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Anesthesiology (license number reported to NPPES: DE C1-0012020)
Registered at 4755 OGLETOWN-STANTON RD, NEWARK, DE 19718 (Tel: 3027331100)
NPI status registered as active in NPPES database
Registered at 4755 OGLETOWN-STANTON RD, NEWARK, DE 197180002 (Tel: 3027331100)
Registered at 2 READS WAY STE 201, NEW CASTLE, DE 197201630 (Tel: (302) 709-4709)
Recorded as JAMES LEONARD, MD
Student in an Organized Health Care Education/Training Program (license number reported to NPPES: NY 262406)
NPI status registered as active in NPPES database
Registered at 550 1ST AVE, NYU LANGONE MEDICAL CENTER, NEW YORK, NY 100166402 (Tel: 2122635506)
Registered at 550 1ST AVE, NYU LANGONE MEDICAL CENTER, NEW YORK, NY 100166402 (Tel: 2122635506)
Recorded as JAMES LEONARD, MD
Student in an Organized Health Care Education/Training Program (license number reported to NPPES: NY 262406)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Anesthesiology Specialists in Newark
- Dr. Mei Wu, MD
- Dr. Gina Kim, MD
- Dr. Leonard Nowcid, MD
- Dr. Terence Wallace, MD
- Dr. Patricia Moore, MD
- Dr. William Weaver, MD
Mailing Address
2 Reads Way Ste 201
New Castle, DE 197201630
Phone: 3027094709