Dr. Leon C Chow , MD
Specialist • Middleburg, FL
1658 St Vincents Way, Suite 300
Middleburg, FL 320688431
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 April 25, 2006; this date does not establish years in practice.
-
Published CMS data list 2,801 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Published rows only; this is not a quality measure.
-
Published Part B service records, 2021:
- 99214 — Established patient outpatient office visit: 767 service units.
- 93010 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only: 439 service units.
- 93000 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report: 412 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See all 19 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 584 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
-
Published Part D records, 2022:
- Atorvastatin Calcium — 92 prescription fills, including refills.
- Eliquis (Apixaban) — 91 prescription fills, including refills.
- Amlodipine Besylate — 48 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 17 records in the table · Guide: How to read Medicare Part D prescriber data
-
Medicare Part B services went from 5,486 in 2017 to 2,801 in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2021.
Practice Location & Contact Primary Location
1658 St Vincents Way
Suite 300
Middleburg, FL 320688431
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Specialist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $171,879 in 2021
The total amount Medicare approved for these services in 2021. 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 – by Provider and Service, 2021.
Paid by Medicare
About $124,984 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, 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 – by Provider and Service, 2021.
30-day fills
1,515 standardized 30-day fills in 2022
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
$113,507 in 2022
The total cost of these prescriptions in 2022, 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 – by Provider and Drug, 2022.
Open Payments general payments, program year 2019
All general payments: $105.95 across 8 records.
By nature of payment
- Food and Beverage: $105.95 across 8 records.
Reporting-company totals (3 largest of 4)
- Novartis Pharmaceuticals Corporation: $41.97 across 3 records.
- Janssen Pharmaceuticals, Inc: $37.08 across 3 records.
- Sanofi and Genzyme US Companies: $15.72 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 2019 (published June 30, 2026).
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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?”
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.
Compared with the same specialty in Middleburg and Florida
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Chow are from 2021.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Chow are from 2022.
4 active clinicians are listed under Specialist with a practice address in Middleburg, FL (2,695 in Florida).
Addresses are self-reported to NPPES and may be out of date.
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 decreased 49% from 5,486 in 2017 to 2,801 in 2021.
- 2017: 5,486
- 2018: 5,326
- 2019: 5,399
- 2020: 3,430
- 2021: 2,801
-
Medicare-allowed amount
Medicare-allowed amount decreased 38% from $278,288 in 2017 to $171,879 in 2021.
- 2017: $278,288
- 2018: $269,392
- 2019: $279,139
- 2020: $187,180
- 2021: $171,879
-
Paid by Medicare
Paid by Medicare decreased 40% from $206,747 in 2017 to $124,984 in 2021.
- 2017: $206,747
- 2018: $200,436
- 2019: $202,850
- 2020: $133,049
- 2021: $124,984
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 77% from 2,499 in 2018 to 584 in 2022.
- 2018: 2,499
- 2019: 2,814
- 2020: 2,759
- 2021: 2,345
- 2022: 584
-
30-day fills
30-day fills decreased 75% from 6,171 in 2018 to 1,515 in 2022.
- 2018: 6,171
- 2019: 7,052
- 2020: 7,035
- 2021: 6,331
- 2022: 1,515
-
Part D drug cost
Part D drug cost decreased 60% from $285,455 in 2018 to $113,507 in 2022.
- 2018: $285,455
- 2019: $380,397
- 2020: $438,500
- 2021: $437,381
- 2022: $113,507
-
Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Medicare Part D Prescribers (2022), CMS Open Payments (2019), 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
Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $105.95.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
ENTRESTO | General | $16.54 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
MULTAQ | General | $15.72 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
ENTRESTO | General | $14.28 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $13.51 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $12.06 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $11.51 |
| BOSTON SCIENTIFIC CORPORATION |
Food and Beverage
In-kind items and services
|
WATCHMAN | General | $11.18 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
ENTRESTO | General | $11.15 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2020 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, 2017–2021; 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
|
767 | 478 | $323.00 | $130.28 |
|
93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
|
439 | 254 | $10.18 | $8.40 |
|
93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
|
412 | 398 | $51.00 | $14.82 |
|
93306
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
|
306 | 297 | $194.30 | $70.66 |
|
85610
Blood test, clotting time
|
165 | 35 | $16.00 | $4.29 |
|
78452
Nuclear medicine studies of heart muscle at rest and with stress and spect
|
148 | 148 | $240.21 | $77.53 |
|
93016
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician
|
146 | 146 | $191.66 | $21.99 |
|
93018
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician
|
146 | 146 | $186.78 | $14.60 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
74 | 68 | $220.00 | $91.91 |
|
99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
|
40 | 40 | $419.00 | $134.84 |
|
99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
|
40 | 36 | $220.00 | $72.83 |
|
93242
Heart rhythm recording continous external ekg over more than 48 hours up to 7 days
|
17 | 17 | $44.00 | $14.73 |
|
93227
Electrocardiogram (ecg) 2-day continuous with review by health care professional
|
16 | 15 | $82.00 | $18.88 |
|
93244
Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days
|
16 | 16 | $74.00 | $23.35 |
|
93306
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
|
16 | 16 | $194.88 | $71.08 |
|
93280
Programming of dual lead pacemaker system
|
15 | 13 | $117.00 | $38.04 |
|
99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
|
14 | 14 | $620.00 | $203.08 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
13 | 13 | $497.00 | $170.47 |
|
93225
Electrocardiogram (ecg) 2-day continuous
|
11 | 11 | $78.00 | $19.35 |
Source: CMS Part B by Provider and Service, 2021; 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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 92 | 8,220 | $999.89 | 44 |
| Eliquis | Apixaban | 91 | 4,110 | $75,942.88 | 30 |
| Amlodipine Besylate | Amlodipine Besylate | 48 | 4,320 | $247.15 | 24 |
| Carvedilol | Carvedilol | 48 | 4,020 | $481.17 | 29 |
| Metoprolol Succinate | Metoprolol Succinate | 47 | 3,990 | $996.44 | 21 |
| Warfarin Sodium | Warfarin Sodium | 32 | 2,622 | $464.42 | 17 |
| Furosemide | Furosemide | 31 | 2,210 | $103.52 | 14 |
| Metoprolol Tartrate | Metoprolol Tartrate | 30 | 2,640 | $137.98 | 18 |
| Lisinopril | Lisinopril | 29 | 2,610 | $265.68 | 15 |
| Losartan Potassium | Losartan Potassium | 23 | 1,890 | $180.25 | 13 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 21 | 1,710 | $929.19 | 11 |
| Clopidogrel | Clopidogrel Bisulfate | 20 | 1,704 | $406.85 | 14 |
| Spironolactone | Spironolactone | 20 | 1,800 | $243.54 | 11 |
| Entresto | Sacubitril/Valsartan | 17 | 1,050 | $21,304.79 | — |
| Xarelto | Rivaroxaban | 13 | 570 | $9,771.12 | — |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 11 | 990 | $441.55 | — |
| Ezetimibe | Ezetimibe | 11 | 990 | $590.44 | — |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 174400000X
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.), Master of Public Health
Nurse Practitioner
ARPNC
Internal Medicine - Cardiovascular Disease
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Internal Medicine - Cardiovascular Disease
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History
NPI enumerated April 25, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Mailing Address
1658 St Vincents Way, Suite 300
Middleburg, FL 320688431
Phone: 9042765100